User Manual
Contents
1. Banta G aa User Manual McDOWELL SIGNAL PROCESSING LLC McDSP Channel G Compact Plug In Manual McDSP McDowell Signal Processing LLC 1300 Crittenden Lane 401 Mountain View CA 94043 Support Email info medsp com Technical Support help medsp com World Wide Web www medsp com McDSP Channel G Compact Special Thanks to Gil 6 Gowing Jake Schaefer Steve MacMillan Stephen Hart and the staff at Fantasy Studios Our beta sites and Rob Barrett Jr our 1 customer from the entire McDSP development team Copyright Notice Copyright 1998 2009 McDowell Signal Processing Limited Liability Company All Rights Reserved The McDowell signal Processing Limited Liability Company s Channel G Plug in and Corresponding User s Manual is copyrighted and all rights are reserved Information in this document s Subject to change without notice and does not represent a commitment on the part of McDowell Signal Processing Limited Liability Company This document may not in whole or part be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form for the purpose of resale without prior consent in writing fram McDowell Signal Processing Limited Liability Company Trademarks McDowell Signal Processing Limited Liability Company is a trademark of McDowell Signal Processing Limited Liability Company Other brands and their products are trademarks of2. The McDSP Mac versions are compatible with both Intel and PowerPC based computers The McDSP Windows versions require an Intel Pentium 4 or greater processor Getting Started McDSP Windows test machines are chosen to follow the Digidesign recommended systems guide which currently isthe Dell Precsion Workstation 670 with 2 79 GHz Xeon processor All products are guaranteed to run on that system Older Intel processors te Pentium Il and predecessors and AMD processors are not officially supported although some users have had limited success with newer AMD Processors Le Dual Opteron 1 79 GHZ Athlon 64 2 20 GHz and Athlon 64 XP 3700 None of our XP line will work with Pro Toals 5x Also note that McDSP Windows product line does not support MIX although RTAS versions will work if they exist and the rest of your system Le Pro Tools version and Processor i compatible Please visit medsp com for the latest information about compatibility medsp com Page ix Installing the Channel G Compact Plug In Installation on Mac OS X The Channel G Compact plug in Package includes this manual ReadMe and Release Notes a folder of presets for the Channel G Compact plug in and the Channel G Compact plug in Two copies of the Channel G Compact Licensing Agreement are included one in this pdf manual and a second as a separate text file The Channel G Compact plug in manual requires that Adobe Acrobat reader o
3. Percentage used at 48kHz Configuration Use percentage per DSP HD systems Use percentage per DSP HD Accel Mone tems CONSOLE 16 17 COMPACT Configuration Use percentage per DSP HD systems Use percentage per DSP HD Accel systems Stereo G CONSOLE 30 03 COMPACT For HD systems Channel G Compact supports all higher sample rates up to 192 kHz However due to the DSP usage of some of the larger Channel configurations not all configurations are available at the higher sample rates For 96 kHz operation the dsp usage is doubled x 2 For 192 kHz operation the dsp usage is quadrupled x4 ProTools MIX DSP hardware MeDSP has decided to remove Mix support from its entire product line as Digidesign is no longer actively investing development into the Mix hardware platform Digidesign and ProTools are registered trademarks of Digidesign Inc medsp com www medsp com Copyright 2009 by McDowell Signal Processing LLC All trademarks are property of their respective owners McDSP is a trademark of McDowell Signal Processing LLC
4. The 6 Equalizer and G Console equalizer section is one of the most configurable equalizers in the history of professional audio Not only are the frequency response curves modeled but the control calibrations and ranges are also selectable from a single users interface This feature coupled with Channel G Compact s integration with control surfaces like the ICON work surface by Digidesign transform the digital audio workstation into an actual mixing console Basics The G Equalizer has 4 bands of configurable EQ The equalizer section is 4 bands of parametric EQ LF LMF HMF HF The LF and HF bands have a mode control to switch them from parametric to shelving EQ The gain range in each band is 18 dB The frequency range varies in each EQ mode as described below There are several equalizer modes that allow the user to switch from the pre programmed modes designed by McDSP engineering to other modes that model some of the most popular analog mixing console EQ strips Music and Post Modes muse The shelf shape in the Music EQ console mode are designs unique to MEDS based on one of the most popular Peak Slope Dip settings from our award winning FiterBank plug in The Music and Post EQ modes are the only modes that retain shelf shape control via the Q contral in the LF and HF bands The relatively steep curve and moderate peaking at high O settings is great to carve out needed adjustments to a mix Low Q set
5. HF 1500 to 16000 Hz A hybird Neve console based on the AMEKINeve 9098 onsale coupled with the vast library of measurements taken by MeDSP McDSP has evaluated many original Neve units as well as remakes The shelf shapes are very much like the 9098 while the parametrics employ much of the smars MeDSP has come to understand bout this important lineage of equalizers Frea ranges L 30 to 300 He LM 100 to 1000 He HME 1500 to 15000 Hz HF 2000 to 20000 Hz McDSP Channel G Compact 2 Think API 550 with 5 bands more gain and adjustable freq ranges fiters and you have the A mode in Channel G Compact EQ configuration The proportional Qis LF 30 0 400 Hz modeled dead an while the gain is extended to 4 18 LMF 75 to 1000 He dB The Q values track exactly to the originals up to 12 dB and are then extrapolated to the new 18 8 HMF 800 to 12500 Hz level API has always dane a great job of providing useful tools EQ and Compression while restricting the control ranges to keep the user from making a bad sound HF 2500 to 20000 Hz All Trademarks are property of their respective owners SSL is trademark of the Solid State Logie Ltd Neve is a trademark of AMS Neve and API 5S0 is a trademark of the Automated Processes Inc AP These companies are not affiliated in any way with McDSR nor do they endorse the Channel G Compact plugin The trademarks of these companies are
6. Compressor imiter OUTPUT O PHASE Polarity phase of the final output ON is 180 from original our ETET The amount of gain applied to the signal after the CompressoLimiter Makeup Gain EQUALIZER a various ranges pending EQ The width of the parametric EQ bell or slope mode 0 430 16 of the shelving EQ in Music mode and scoop n Post mode Note that Q is not available in models with gain dependent Q Mode A FREQ Various ranges pending EQ The center frequency or cutoff frequency of the mode 20 to 20 000Hz parametric or shelving EQ TAN EI The amount of boost or cutin dB for each EQ band TPE Parametric Shelf EF and HF only Toggles between parametric and shelving EQ BAND BYPASS wou Round Green button is lt if that band of EQ is in the signal path EQ BYPASS wor Round Green button in lower right corner of user interface is it if entire EQ isin MODES Music Port E SSL series E Selects the way in which the EQ operates G Sst series G N Neve A There are Music and Post equalizers as well as API SSO modeled equalizers from world class mixing 00 our ZA to 24 d8 The amount of gain applied to the signal after the LPF ast of the seven fiter and EQ bands iter band mcdsp com Page 19 DSP Delay The delay incurred by any of the Channel G Compact plug in configurations is ZERO samples On HD systems the delay is 1 ONE sample There is a 2 sample delay from the TDM connection to t
7. input to output ratio of the Compressor Limiter When this control is near its maximum 100 1 the process acts as a Limiter Some of the more standard compression ratios are 2 1 to 10 1 Attack the rate at which the Compressor Limiter begins to reduce the dynamic range of the input signal as it exceeds the selected threshold Release the rate at which the Compressor Limiter stops reducing the dynamic range of the input signal as it goes below the selected threshold Gain the amount of makeup gain applied to the signal after the dynamic range reduction Note the relation to the master output of the plug in if the Compressor is used as the key signal this gain is applied BEFORE the signal is fed back Threshold the signal level that must be exceeded in order for the Compressor Limiter to start reducing the input signal dynamic range Compressor Limiter In the switch that engages or bypasses the Compressor Limiter algorithm EQ Comp Routing In selects the order of the compressor and equalizer sections Selecting pre places the compressor before the EQ selecting post places the compressor after the EQ Equalizer The G Equalizer has four EQ bands LF LMF HME HF The LF and HF bands have an EQ type control The controls are EQ Type LF and HF only toggles between parametic and shelving EQ Gain the amount of boost or cut in dB for each EQ band Freq the center frequency or cutoff
8. meg 2 eect an a nine th enn connected to your computer it is important to select the correct iLok you wish the authorizations to be transferred to Then click Download Licenses to begin the process Again this may take a moment depending on your internet Lok com Par connection When the transfer finishes you will be asked to confirm the compietition of the transaction thereby letting you know that the transfer was successful Page xxi If you wish to go back into iLolccom your account and visually confirm the transaction for yourself select View iloks Then select the iLok you had the authorizations transferred to That s it Dont forget to logout and move the iLok Smart Key to your ProTools System if you are using another computer for Internet access Also you may need to install a different version of the Plug In if you are upgrading or replacing View the contents of your itoks Transferring Authorizations with iLok com You may freely transfer any authorization within your iLok com account between any of your registered iLok Smart Keys If you wish to transfer an authorization out of your iLok com account to a different user it will require additional support from PACE Anti Piracy Inc and may be subject to a service fee or limited by manufacturer restrictions Check the www ilok com website for updates and developments regarding iLok USB Smart Keys and the Pace Interlok C
9. the McDSP HD Disk Native Disk or LE Disk CDROM onto an available CDROM drive Navigate to the Channel G Compact plug in folder on the CDROM the installer application is contained therein Run the Channel G Compact plug in Installer application to install the Channel G Compact plug in presets and documentation to a local folder on your system The plug in will be placed in the Plug Ins folder and the presets will be placed in the Plug ins Settings folder If a previous version of the Channel G Compact plug in or other HD Native Getting Started or LE version was already in the plug ins folder it will automatically be updated or replaced by the installer Re installing the Channel G Compact plug in presets manually In you wish to restore the factory default presets it may be useful to know how to manually re install only the presets Go to the Plug in Settings folder CAProgram Files Common Files Digidesign DAE Plug in Settings If Pro Tools has not already done so for you create a folder called Channel G Compact Place a copy of the folder from the Channel G Compact plug in package called Presets into the Channel 6 Compact folder The presets are now viewable after restarting Pro Tools from the settings popup menu from the Channel G Compact plug in Note it may be necessary to re start Pro Tools in order for the newly added Presets fo
10. their respective holders and should be noted as such Digidesign and Pro Took are registered trademarks of Digidesign Inc medsp com Pag Table of Contents 16 5 8 Channel G Compact Plug In Manual ii McDSP License Agreement vi Getting Started with Channel G Compact vill System Requirements vil Installing the Channel G Compact Plug in x Installation on Mac OS X x Installation on Windows XP and Vista xi Installation on VENUE D SHOW systems xiv Authorizing your McDSP Plug Ins wi Authorizing with a pre programmed iLok Smart Key wi Authorizing with an iLok License Card wi Authorizing with iLok com x Registering your McDSP Plug In wii Using your McDSP Plug Ins wii Channel G Compact 1 The Quick Start Tour Channel G Compact w Channel G Compact Overview Flow Diagram Knobs Graph Display Option Bypass Control Button Radio Buttons The Meters Automation Presets Using the Presets and Making Your Own A Word on Preset Compatibility Channel G Compact Overview Channel G Compact Overview Meters In Out NNN McDSP Channel G Compact Dynamics Filters Comp Limiter Response Plots Flow Diagram Equalizer Channel G Compact Control Overview Input Output Compressor Limiter Equalizer Dynamics Filters EQ Mode Response Plots Console Meters Using Channel G Compact A Closer Look at the Compressor Limiter Basics Knee Modes Feed forward vs Feed ba
11. E PRICE FOR THE SOFTWARE The disclaimers and limitations set forth above will apply regardless of whether you accept the Software U S Government Restricted Rights RESTRICTED RIGHTS LEGEND Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph 1 0 of the Rightsin Technical Data and Computer Software clause at DFARS 2522277013 or subparagraphs 3 1 and 2 of the Commercial Software Restricted Rights clause at 48 CFR 52227 19 as applicable McDowell Signal Processing Limited Liability Company Mountain View CA 94043 nfoemeisp com General This Agreement will be governed by the laws of the State of California This Agreement may only be modified by a license addendum which accompanies this lenge or by a written document which has been signed bath by you and McDowell Signal Processing Limited Liability Company Should you have any questions concerning this Agreement or if you desire to contact McDowell Signal Processing Limited Liability Company for any reason please email legal medsp com By downloading using or copying this Binary Sofware Licensee grees to abide by the intellectual property laws and all other applicable laws of the US and the terms of this License Ownership of the software shall remain solely in McDowell Signal Processing Limited Liability Company Getting Started with Channel G Compact Each McDSP plug in is delivered inside an installer applicatio
12. SB Smart Keys If the iLok com account information is lost the iLok USB Smart Key cannot be registered to another account However an iLok USB Smart Key may be transferred between accounts if all the authorizations have been transferred off the iLok USB Smart Key Register the iLok USB Smart Key to an iLok com account only when you are ready to retain all the needed iLok com account information User ID and Password A Finished dialog is displayed showing what authorization method was used Click Finish to exit the Authorization Wizard Page xix Authorizing with iLok com Required for demo upgrade and replacement authorizations only iLok com can be accessed from any Macintosh or PC with an Internet connection You can do this at home a friend s or at the office as long as there is an internet connection to access iLok com note that you don t have to use your ProTools system computer You simply use this computer to connect to iLok com and transfer authorizations to your iLok Smart Key The iLok Smart Key can then be moved to your ProTools system to complete authorization of your Plug In You will need A computer with an Internet connection Either a Macintosh running OS 9 2 to OS 10 3 or a PC running Windows 98 ME 2000 XP or Vista An iLok USB Smart Key A valid iLok com account Visit www iLok com and set up a free account if you have not already done so 1 Download and install the require
13. UE display Creating a VENUE D SHOW Installer CD R from the online zip file If you do not have a boxed copy of Channel G Compact with the included HD Disk CDROM you can still obtain a copy of the VENUE compatible installers from the www mcdsp com website Once you have located and downloaded the latest VENUE compatible installers from the McDSP website you will have to take several additional steps to create a VENUE compatible Installer CD R For your convenience all VENUE compatible products are located in the same downloadable zip file so you will only have to create one CD R to install all compatible McDSP products Unzip the downloaded file and locate the folder named TDM Plug Ins inside the unpacked folder Using any CD R burning application burn this folder and its contents to an ISO format CD R It is recommended that you use a brand new CD R for this and do not rewrite an older CD R Once you have burned this folder to a CD R you should see it at the root level of the disk i e DATDM Plug Ins Important If the TDM Plug Ins folder is not located at the root level of the CD R or has been renamed the VENUE console may not properly recognize the installer disk At this point you can follow the HD Disk installation instructions above to complete the installation Autho ing your McDSP Plug Ins Authorizing with a pre programmed iLok Smart Key MeDSP bundles such as the Emerald Pac
14. ails on general Plug In operation Digidesign and Pro Took are registered trademarks of Digidesign Inc McDSP Channel G Compact Channel G Compact Channel G Compact the complete dynamics and equalization console for ProTools The Channel G Compact Dynamics configuration uses ultra high resolution level detection in its Compressor Limiter sections to give accurate handling of the most complex material The compressor limiter has a continuous ratio control complemented by a knee control designed to smooth the transition into the compression action These controls allow the Channel G Compact compressor to be used extensively without a heavily compressed sound Attack times as fast as 0 001 msec for instantaneous compression action up to sample rates as high as 100 kHz Channel G Compact supports sample rates as high as 200 kHz The filter section has high and low pass filters with slopes of 12 and 24 dB oct The Channel G Compact Equalizer is based on the original design found in McDSP s award winning FilterBank plug in Improvements include a greater boost cut range and switch able shelving parametric EQ sections There are 4 bands of parametric EQ and the LF and HF bands are switchable to shelving EQ Like all Channel G configurations the EQ section control layout matches exactly to the center section of the Digidesign D Control D Command and ICON work surface In addition to the extensive dynamics filtering and equal
15. alled Both online and boxed version will come with a Channel G Compact installer that will automatically install the Channel G Compact plug in and its presets on your system The authorization of the Channel G Compact plug in is still required after running the installer and those steps are detailed in the following sections Installing the Channel G Compact plug in and presets with the Installer The Channel G Compact plug in package purchased at your local dealer will be on CDROM and contain a Windows self extracting executable exe similar to the online Channel G Compact plug in package prepared for Internet delivery Both the boxed and online versions the Channel G Compact plug in executable file will automatically install the plug in and its presets on your system Double click the file to launch the installer which will install the Channel G Compact plug in presets and documentation At any time after installation you may access the documentation from the Windows Start Menu under the McDSP group Authorization of the Channel G Compact plug in is still required after running the installer and those steps are detailed in the following sections Note that after installing new versions of the PACE iLok drivers with the Channel G Compact plug in installer you will be prompted by the Channel G Compact plug in installer to reboot your system If you are not prompted by the installer there is no need to reboot Insert
16. ar Peak Slope Dip settings rom our award winning FiterBank plugin The parametric bands have a good Q range 1 0 to 120 and the band overlap i geared towards the creative equalization needs of music production 3 POST Another design unique to McDSP this shelf mode has the steepest of MODE all the various EQ shelf modes available in Channel G Compact The parametric bands have the widest Q range of all the modes 0 4 to 160 The overlap is nearly complete with the bands low ranges only 40 Hz apart and each spanning 2 decades 3 This EQ config is derived from measurements taken of various SSL series E equalizer sections The other popular SSL EQ the series G har substantially different shelf shapes than found on the E series McDSP Channel G Compact N hybird Neve console based on the AMEK Neve 9098i console coupled with the vast library of measurements taken by McDSP over the years 2 Think AP 550 with 5 bands more gain and adjustable fiters and you have the A made in Channel G Compact EQ configuration Al Trademarks are property of ther respective owners SL is trademark of the Solid State Logie Leds Neve isa trademark of AM S Neve and API 550 is a trademark of the Automated Processes Ine AP These companies are not affiliated in any way with McDSR nor do they endorse the Channel G Compact plugin The trademarks of these companies are used solely for
17. authorize the Plug in or allow it to be used for a trial period If Quit is selected the Plug in will not be available in the Pro Tools insert menu McDSP Plug ins require that the user personalize their copy of the Plug In A dialog is displayed soliciting this information Note that the product registration card enclosed with the Plug in MUST ALSO be filled out as well and returned to McDSP via mail or fax to 707 220 0994 This additional mail in registration will entitle the User to future upgrades and advance information from McDSP Once the Plug in is personalized click the Next button to continue Check the Use License Card box and press the Next button figure 2 3 Note Although the Authorization Wizard may appear to allow authorization by challenge response that method is currently NOT SUPPORTED McDSP Plug Ins Separate the small punch out iLok License Chip the removable metal and plastic tab from the License Card by pushing the cutout up and out with your thumb Do not force your finger downward The iLok License Chip may now be inserted into the key slot of the Lok USB Smart Key figure 2 6 If the iLok USB Smart Key does not appear to be present on the H g3 system ensure the iLok USB Smart Key is connected to a valid USB port and that the green LED is lit inside the iLok USB Smart Key To insert the License Chip into the iLok USB Smart Key
18. ce Guide Automating plug ins section Presets Using the Presets and Making Your Own The Channel 6 Compact presets are designed as roughs for various analog mixing console applications The presets can be accessed from the ProTools plug in Librarian and plug in Settings pop up menus To make and save your own presets see the plug in Librarian Functions section of Digidesign DigiRack plug ins Guide A Word on Preset Compatibility Presets for Channel G Channel G Compact and Channel G Surround are interchangeable Settings created from one configuration will affect the like named controls in another ProTools is a registered trademark of Digidesign Ine Channel G Compact Overview The Channel G Compact Dynamics configuration includes a Compressor Limiter separate input and output controls and two fully sweep able filters The Compressor Limiter can key from the original input un filtered the side chain input or the output of the two filters The filters can take their input from the original input or the side chain The two filters can also be placed inline so their effect on the signal is heard at the output As with all Channel G configurations most controls are mirrored in the actual Digidesign ICON D Control EQ and Dynamics center sections allowing users unprecedented integration between this hardware controller and audio processing software McDSP Channel G Co
19. ch the EQ type between parametric and shelf shapes There are peak indicators for the EQ bands to show when signal levels are at maximum A bypass control for the entire EQ section is also provided Input Output Channel G Compact like all Channel G configurations has dedicated Input and Output controls C Input the amount of gain applied to the signal before it reaches the Expander Gate and Filter m sections Output the amount of gain applied to the signal after the Compressor Limiter Makeup Gain The signal polarity phase may also be adjusted at this stage in the processing Compressor Limiter The Channel G Compact Compressor Limiter meets all the needs and requirements of modern post production while retaining the needed musicality for music applications The Compressor Limiter controls are Key selects the signal used to cause the Compressor Limiter to begin reducing signal dynamics range once it exceeds the selected threshold The choices are the original input the output of the Compressor Limiter itself the side chain key signal or the output of the Filter section Knee the shape of the compression curve The greater the Knee control value the smoother the transition into the compression zone above the selected threshold There are several additional Knee control modes that model specific compressors found in analog mixing consoles McDSP Channel G Compact Ratio the slope or
20. ck Compression A Closer Look at the Dynamics Filter section Basics Noise Reduction A Closer Look at the Equalizer Modes Basics Music and Post Modes Channel G Compact Plug In Reference Guide Channel G Compact Specifications DSP Delay DSP Usage HD and HD Accel DSP hardware Maximum instantiation Counts at 48kH2 Percentage used at 48kHz ProTools MIX DSP hardware Pagev McDSP License Agreement The software described in this manual is furnished under a license agreement and may be used only in accordance with the terms of the agreement McDowell Signal Processing Limited Liability Company License and Warranty The software which accompanies this license the Software isthe property of McDowell signal Processing Limited Liability Company or Fts iicensers and is protected by copyright law While McDowell Signal Processing Limited Liability Company continues to own the Software you will have certain rights to ise the Software after your acceptance of this license Except as may be modified by a license addendum which accompanies this license your rights and obligations with respect to the use of this Software are as Follows You May authorize 1 one copy of the Software on 1 one PACE Anti Piracy iLok USB Smart Key for use with no more than 1 one computer at any given time make copies of the Software tor archival purposes or copy the software onto the hard disk of your computer and retrain the
21. d client software from iLok com 2 Download the desired McDSP Plug in Installer fro httpy www medsp com support updating html 3 To receive an upgrade or replacement authorization send email your iLok com account information to support medsp com To receive a demo authorization email your iLok com account information to authorize medsp com Insert your iLok Smart Key into an available USB port and ensure that the indicator light is lit Once your demo upgrade or replacement authorization is available for transfer your iLok com account will display the notice saying You have licenses on the upper left Begin by selecting that link Authorizing Your MeDSt The next page will display Penine Kanes aati evn the pending licenses oe available for download This page will also display the name of the Plug In its manufacturer the type z of authorization demo Not For Resale or License the date the authorization was deposited and the date when the authorization will no longer be available for download from the server Before any transfer of authorizations can take place you must synchonize your iLok Smart Key with iLok com This may take a moment to process depending on your internet connection uung i i i Once you have synchronized i your iLok you can select the authorization s you wish to m transfer to your iLok I tf you have multiple iLoks
22. duces control jittering commonly found in knob controls Hold the lt Command gt key While dragging the knobs for fine control Click on the text box to highlight and edit the numeric value to get precise control if a value outside the valid range is input the control will default to the nearest allowed value when enter is hit and hit lt Enter gt Click on the text box to highlight the numeric value and then use the arrow keys to increase or decrease the numeric value Use the lt Option gt key to bring all the controls to their default values Use hardware controller surfaces supported by Channel G Compact including Digidesign s ICON VENUE Profile ProControl and Control 24 and the Mackie HUI Graph Display Option GPH Response Plots SIG Signal Path Flow Diagram Radio Buttons Give a choice of parameters to choose from and are grouped Choose one setting Bypass Control Button Toggle control that takes the section in or out of the audio processing path The green light indicates the section isin When the light is off the section is bypassed McDSP Channel G Compact The Meters The Channel G Compact plug in has a Metering Center Section to display input levels Compressor Limiter gain reduction and output levels Automation All Channel G Compact controls are completely automatable See the Digidesign ProTools Referen
23. er slope choices are limited to 12 abd 24 dB Oct Basics The Filter section is comprised of two filters a Low Filter and a High Filter Each can toggle a respective high pass filter HPF and low pass filter LPF modes The Q Slope control selects the slope of the HPF or LPF 12 or 24 dB Oct The filter design and topologies used in the Filter section are derived from MeDSP s award winning FilterBank plug in Noise Reduction The use of filters to remove unwanted signal while desired signal is present is common to any audio production By offering high pass low pass and notch filtering Channel G Compact can effectively eliminate noise while affecting the desired audio as little as possible The high pass filter HPF passes signal above the selected frequency and removes signal below the selected frequency at a rate give by the Q Slope control At the maximum rate of 24 dB of level reduction per octave the Channel G Compact HPF is great for removing low rumble plosive thuds from a dialog and just cleaning up the bass of a track McDSP Channel G Compact The low pass filter LPF passes signal below the selected frequency and removes signal above the selected frequency at a rate give by the Q Slope control At the maximum rate of 24 dB of level reduction per octave the Channel G Compact LPF is great for removing hiss strange reflections or any undesirable high frequency noise A Closer Look at the Equalizer Modes
24. frequency of the parametric or shelving EQ QiSlope the width of the parametric EQ bell or slope or dip of the shelving EQ in certain modes Dynamics Filters The 6 Dynamics Filter section is two independent fully sweepable filters Each filter has a selectable slope up to 24 dB Oct and filter type control The Filter section controls are Fiter input selects the input to the Fiter section the original 3 input signal or the side chain input Fiter Type toggles between high pas filter HPF and notch filter types in the Low Fiter and between low pass fiter LPF and notch fiter types in the Hi Fiter section Freq the center frequency or tof frequency of the fiter QISlope the width of the notch filter or slope of the HPF or LPF filter Togogles between 12 and 24 dB Oct choices in Channel G Compact Channel G has 6 12 18 and 24 0ct options EQ Mode The Channel G Compact Equalizer has the ability to model not only the responses of EQ previously only found on world class analog mixing consoles but will also match the calibrations of those Equalizers In all the EQ modes the HPF and LPF frequency and slope ranges are not affected While many modeled consoles had more restricted values McDSP chose to leave the maximum amount of control for these bands for the greatest utility MUSIC The shelf shape in the Music EQ console mode are designs unique 10 McDSE based on one of the most popul
25. he Channel G Compact plug in This is the absolute minimum number of delay samples a TDM plug in can have The MeDSP plug ins are designed in this manner to provide the user with the closest analog mixing console experience possible analog inserts such as EQ and compression do not cause a processing delay when inserted into a track DSP Usage HD and HD Accel DSP hardware The TDM versions of the Channel G Compact plug in configurations use a varying amount of DSP resources for each Channel G Compact configuration The table below is a listing of these DSP usages The DSP Allocator utility provided by Digidesign or the DSP Usage display in Pro Tools for PT version 5 0 and later may be used to display dsp resource allocation when Pro Tools is running Note there is no MIX hardware support for Channel 6 Compact Maximum Instantiation Counts at 48kHz Configuration instantiations per DSP on instantiations per DSP on Meno HD systems HD Accel systems CONSOLE 0 01 COMPACT Configuration 4 instantiations per DSP on instantiations per DSP on E HD systems HD Accel systems CONSOLE 3 7 compact Many of the Channel G Compact plug in configurations can operate on the same dsp depending on the configuration s dsp requirements Percentages of each HD or HD Accel DSP used by a single instantiation of a Channel G Compact plug in configuration are shown below McDSP Channel G Compact
26. iter begins to reduce the dynamic range of the input signal as exceeds the selected threshold RELEASE T00 t S000 msec Rate at which the Compressor imiter stops redudng the dynamic range of the input signal as it goes below the selected threshold TAN mona Amount of makeup gain applied to the signal after the dynamic range reduction Note that thie gain occurs before feedback in Output Key Mode TRES 250 Signal level that must be exceeded in order for the CompressorLimiterto start reducing the input signal dynamic range ON OFF Switch that engages or bypasses the Expander Gate algorithm Page 18 McDSP Channel G Compact Parameter Settings Function ALTERS FILTER INPUT IN Key Gidechain Selects the input to the Fier section the original input signal or the side chain input Tre Nich Low Pass High Pass Toggles between high pas filter HPF and Fiering notch filter types in the Low Filter and Between low pass fiter LPF and notch filter types in the Hi Fiker section FREQ 20 to 20 000 HE Center frequency or cutoff frequency of the filter SLOPE 2 and 24 dalod for Width of the notch fiter or slope of the HPF Fiters or 4 Notch widths or LPF fiter FITER PATH NUNE When inline fiters offset signal output signal INLINE disengaged directly not inline the fiter output i only used on key signals for the Expander Gate and
27. ixers use compression on every track while others attempt to not use compression at all or at least as little as possible The timing of the Compressor Limiter is controlled by the Attack and Release controls The attack time determines how quickly the Compressor Limiter begins to reduce signal level once it is above the threshold The release time determines how quickly the Compressor Limiter stops reducing the signal level once it is below the threshold The transition between no compression and the selected compression amount is controlled by the Knee mode McDSP has created several positions for practical use in music and post production ranging from hard knee to soft knee shapes Several modeled knee shapes are also available Page 12 McDSP Channel G Compact The Gain control provides up to 24 dB of make up gain post compression This control is also extremely useful when the Compressor Limiter key signal is its own output Knee Modes The Channel G Compact Compressor Limiter Knee modes are derived from the years of modeling experience at McDSP Console compressors are amongst the most coveted dynamics processors in the music production business and along with the corresponding console equalizers are the heart of the sound of any analog mixing desk The Knee control in Channel G Compact has 11 pre programmed positions ranging from hard knee to gentle knee curves The affect of this control can be viewed in the transfe
28. ization capabilities of Channel G Compact there are also models of world famous mixing desks Control calibrations are adjusted for each desk mode allowing a user familiar with the original analog consoles to be immediately intimate with the equalizer and dynamics facilities of Channel G Compact The total integration of Channel G Compact with the Digidesign D Control work surface as well as other popular control surfaces like ProControl D 24 Command 8 and Digi 002 converts the Digidesign DAW experience into that of an analog mixing console Channel G Compact provides the sound and functionality of world class analog mixing consoles combined with the flexibility and scalability of a software plug in Page 1 Feature List High pass and low pass filters with 12 and 24 dB Oct slopes Full featured Compressor Limiter Four band EQ with shelving and parametric sections Compressor Limiter operation pre and post EQ section Analog Saturation Modeling Double precision processing Ultra low latency Mono and stereo versions Digidesign and ProTools are registered trademarks of Digidesign Inc All other trademarks are property of their respective owners McDSP Channel G Compact The Quick Start Tour Channel G Compact Start Protools and instantiate the Channel G Compact Dynamics Configuration Launch Protools and Open a Protools Session Verify the Display gt Mix Window Shows gt inserts Vie
29. k come with a pre programmed iLok Smart Key Simply insert the iLok into any available USB port on your computer The iLok s 0 indicator light will illuminate when the iLok has a proper connection The Plug Ins included in the bundle require no further authorization steps As with any iLok on your system it is recommended that your iLok be registered and synchronized with iLok com Authorizing with an iLok License Card All McDSP Plug Ins require that a valid authorization is present on your iLok USB Smart Key McDSP Plug ins that are purchased individually provide this authorization on a plastic License Card about the size of a credit card with a Oso small punch out iLok License Chip After being separated from the License Card this iLok License Chip is to be inserted into the key slot of the iLok USB Smart Key in order to transfer the authorization from the License Card to the iLok USB Smart Key Note that each License Card holds ONE Plug In authorization The following instructions detail this process Important Note The Authorization Wizard will prompt the user to register their Lok USB Smart Key at iLok com iLok com is a service offered by PACE Anti Piracy Inc and this step is recommended but NOT REQUIRED by McDSP to complete the authorization of the Plug in If you choose to register your iLok USB Smart Key at iLok com care must be taken to record your ilok com account information i e write down your User ID a
30. lder to be viewable from the Settings popup inside the Channel 6 Compact plug in window toolbar Installation on VENUE D SHOW systems The Channel G Compact plug in Package for VENUE D SHOW systems includes presets for the Channel G Compact plug in and the Channel G Compact plug in The Channel G Compact Licensing Agreement is displayed when installing the product on D SHOW The pdf manual can be obtained by running the Mac OS X or Windows XP Vista version of the Channel G Compact Pro Tools plug in installer on any available computer Both online and boxed versions will come with a VENUE compatible installer that will automatically install the Channel G Compact plug in and its presets on your system The authorization of the Channel G Compact plug in is still required after running the installer and those steps are detailed in the following sections Note that all McDSP HD plug ins except Synthesizer One support the Digidesign VENUE D SHOW system Installing the Channel G Compact plug in and presets on VENUE with the HD Disk The boxed Channel G Compact plug in package purchased at your local dealer will contain a CDROM titled HD Disk that is specially formatted to work with your VENUE console The VENUE installers are also available online as a compressed zip file download however you will have to take additional steps to create your own VENUE installer CD R see additional instructions below before proceeding wi
31. le by clicking the clip LED in the plugin tool bar Channel 6 Compact also supports the new ICON plugin metering facilities medsp com Page 11 Using Channel G Compact A Closer Look at the Compressor Limiter The Compressor Limiter section of Channel G Compact uses the same algorithm and controls ranges as found in Channel G and Channel G Surround Basic Compressor Limiter functionality is described below along with some specific Used in music and post production Basics The Compressor Limiter section is used to reduce the level of an input signal once it rises above the selected threshold Such an effect is useful to control the dynamic range of a track impart a different character on a track to make it more punchy or smoother or create certain special effects Like the Expander Gate knowledge of what the threshold and ratio controls is paramount in mastering the Compressor Limiter The threshold determines when the Compressor Limiter will start to reduce the level of the input signal as it continues to rise above the threshold The ratio control determines how gradual or drastic this level reduction will be A ratio of 2 1 means that for every 2 dB the signal is above the threshold the output will be reduced such that the resulting signal level is only1 dB above the threshold A ratio of 10 1 means that for every 10 dB the signal is above the threshold the output level will be 1 dB above the threshold Many m
32. mpact Channel G Compact Overview Response Plots Flow Diagram Meters The G Dynamics configuration displays the transfer function of both the Expander Gate The Channel G and Compressor Limiter and the frequency Compact plug in has response of the Filter section The user can a Metering Center also select to view the flow diagram display Section to display mode to show all signal routing paths input and output levels along with Compressor Limiter gain reduction and Compressor Limiter output levels In Out The G Dynamics configuration like all Channel G Compact configurations has dedicated Input and Output controls Dynamics Filters Comp Limiter The G Dynamics The Channel G Compact Filter section is two compressor Limiter Equalizer independent fully meets all the needs sweepable filters and requirements of E Each filter has a modern post production e FF np the selectable slope while retaining the LF and HF bands up to 12 or 24 dB needed musicality for Oct and filter type music applications control pas medsp com Page 7 Channel G Compact Control Overview Channel G Compact has a full featured 4 band paramteric EQ identical to the one found in the original Channel G save the removal of the MF band and dedicated filters The LF and HF bands of the EQ also have type controls used to swit
33. n and uses the Interlok copy protection software to authorize each plug in This section describes how to install and authorize a McDSP plug in General system requirements are also described System Requirements McDSP HD Native and LE plug ins are compatible with Pro Tools HD HD Accel TDM systems as well as Pro Tools LE and Pro Tools M Powered host based systems McDSP plug ins support Mac OS 10 4 x Tiger 10 5 x Leopard Windows XP and Vista and require Pro Tools 7 x 8 x or greater McDSP plug ins require an iLok USB Smart Key Configurations 5 plug ins are available in TDM RTAS and AudioSuite configurations See individual products for specific available configuration sets Applications Pro Tools 7 x 8 x or higher is required for TDM LE and M Powered systems Additionally a third party software application that supports the Digidesign TDM RTAS or AudioSuite plug in standard may be supported See http www digidesign com developers plugin_info for more information MeDSP plug ins are compatible with the entire Pro Tools 7 and 8 product line Hardware MeDSP plug ins support any Digidesign or approved third party hardware supported in Pro Tools 7 x and 8 x This includes HD HD Accel 003 and Mbox host based systems All McDSP HD plug ins except Synthesizer One also support the Digidesign VENUE D SHOW systems See http www digidesign com compato for more specific information
34. nd Password in a safe place If your iLok com account information is lost the iLok cannot be registered to another account and unfortunately there is nothing McDSP can do to help you See iLok com for more details about the benefits of using PACE s iLok com service Note Images in this section are for illustration only the actual product and screens will be the name of the product you are authorizing Authorizing Your McDSP Plug Ins Authorizing a McDSP Plug In from a License Card with the Authorization Wizard The Authorization Wizard is used to install an authorization from a License Card to the iLok USB Smart Key To use the Authorization Wizard for the Plug in you purchase perform the following steps Insert your iLok USB Smart Key into an available USB port On a Mac Locate and launch the Authorizer application found in the Authorize folder in the Plug In package for the McDSP Plug In you purchased on the CD ROM On Windows XP or Vista just launch Pro Tools to authorize the individual McDSP Plug In you purchased Note When authorizing the Plug in on Windows XP or Vista with a new iLok USB Smart Key you must insert the iLok USB Smart Key and complete the Windows Found New Hardware Wizard before attempting to authorize the Plug in Select the Authorize button to be guided through the Authorization Wizard Note Selecting the Quit button at any time will not
35. opy Protection system Authorizing Your McDSP Plug Ins Registe g your McDSP Plug In To register your McDSP Plug In fill out and return the product registration card enclosed with the boxed Plug In package by mail or fax 707 220 0994 Registering your product entitles you to future upgrades and advance information from McDSP Each individual product must be registered even if you have multiple copies and the product must be registered to an individual not an entity If you represent a company it is your company s responsibility to notify McDSP in writing if the individual who registered the Plug In is no longer with the company The Company must also be able to supply matching registration information to successfully transfer ownership of the Plug In Using your McDSP Plug Ins Starting a McDSP Plug In Follow the installation authorization and registration instructions above Launch Pro Tools and the McDSP Plug In and its presets are ready for use Refer to the Digidesign Pro Tools Reference Guide for details on general Plug in operation such as automation Exiting a McDSP Plug In A 5 Plug In is exited by clicking on the desktop or other window in the DAE application running the Plug In closing the Plug In window or de instantiating the Plug In Pro Tools sessions will save instantiated Plug In configurations and their settings Refer to the Digidesign Pro Tools Reference Guide for det
36. orient the iLok USB Smart Key s USB end to the left and the loop end to the upper right Insert the metal chip end of the iLok License Chip the License Chip tab should have the metal chip side facing up towards you nat down You should be able to visually verify that the License Chip makes contact with the iLok USB Smart Key metal card reader The green LED in the iLok USB Smart Key will light when it is ready to receive and transmit data Upon inserting the iLok License Chip a message will be displayed srt Sect aed indicating the authorization was installed successfully Click Ok in the message dialog Authorizing Your McDSP Plug Ins Once the authorization is installed on the iLok USB Smart Key a dialog is displayed prompting the user to register their iLok USB Smart Key at the wwwilok com website The iLok com website was created to allow users to manage the software authorizations on their iLok USB Smart Key THIS STEP IS NOT REQUIRED TO COMPLETE THE AUTHORIZATION OF MCDSP SOFTWARE The registration of the iLok USB Smart Key to an iLok com account can be bypassed by clearing the checkbox The user may also choose to not be asked to register again While iLok com is a great resource for the iLok USB Smart Key your iLok USB Smart Key may only be linked to one iLok com account That is an individual iLok USB Smart Key can only be registered to one account at a time but a single account can have multiple iLok U
37. original for archival purposes after written notice to McDowell Signal Processing Limited Liability Company transfer the Software on a permanent bass to another person or entity provided that you retain no copies of the Software and he transferee agrees to the terms of this agreement You may not copy duplicate or reproduce the documentation which accompanies the Software for the purpose of resale sublicense rent or lease any portion of the Software to a third party without expressed written permision from McDowell Signal Processing LLC reverse engineer de compile disassemble modify translate make any attempt to discover the source code of the Sofware or create derivative works fram the Software make any attempt to circumvent any copy protection software use a previous version or copy of the Software after you have received a replacement set or an upgraded version as a replacement cf the prior version unless you donate a previous version of an upgraded version to a charity of your choice and such charity agrees in writing that it will be the sole end user Df the product and that it wil abide by the terms of this agreement Unless you so donate a previous version of an upgraded version upon upgrading the Software all copies of the prior version must be destroyed Pag MeDsP Limited Warranty MeDowell Signal Processing Limited Liability Company warrants that the media on which the Software i
38. other HD Native or LE version was already in the plug ins folder it will automatically be updated or replaced by the installer Getting Started Re installing the Channel G Compact plug in presets manually In you wish to restore the factory default presets it may be useful to know how to manually re install only the presets Go to the Plug in Settings folder Root gt Library gt Application Support gt Digidesign gt Plug in Settings If Pro Tools has not already done so for you create a folder called Channel G Compact Place a copy of the folder from the Channel G Compact plug in package called Presets into the Channel G Compact folder The presets are now viewable after restarting Pro Tools from the settings popup menu from the Channel G Compact plug in Note it may be necessary to re start Pro Tools in order for the newly added Presets folder to be viewable from the Settings popup inside the Channel G Compact plug in window toolbar Installation on Windows XP and Vista The Channel G Compact plug in Package includes this manual ReadMe and Release Notes a folder of presets for the Channel G Compact plug in and the Channel G Compact plug in Two copies of the Channel G Compact Licensing Agreement are included one in this pdf manual and a second as a separate text file The Channel G Compact manual requires that Adobe Acrobat reader or similar pdf reader is inst
39. r function plot display Additional Knee control positions model specific analog console compressors Modeled Compressor modes in Channel G Compact are named Chan SSL Channel Compressor Buss SSL Buss Compressor Brit Neve 336090 A Soft and A Hard API 225 hard and soft modes Note the Knee modes in the Compressor section also reset the ranges of the attack and release controls to match those ranges found in the modeled unit Also the filter section s Q and freq ranges are adjusted to match the ranges found in the consoles these modeled compressors are taken from if applicable Al Trademarks are property of their respective owners SSL is trademark of the Solid State Logie td Neve isa trademark of AMS Neve and API 5507 is a trademark of the Automated Processes Inc AP These companies are not affiliated in any way with McDSR nor do they endorse the Channel G Compact plug in The trademarks of these companies are used solely for the purpose of describing the sounds produced by the McDSP Channel G Compact plug in While Channel G Compact emulates the sounds of these Consoles MEDSP makes no representation or warranty that Channel G Compact is identical to or duplicates these consoles Feed forward vs Feed back Compression The Compressor Limiter in Channel G Compact is one of the few in the world that allows the user to choose between the input or output of the Compressor Limiter Using the compressed outp
40. r similar pdf reader is installed Both online and boxed version will come with a Channel G Compact installer that will automatically install the Channel G Compact plug in and its presets on your system The authorization of the Channel G Compact plug in is still required after running the installer and those steps are detailed in the following sections Installing the Channel G Compact plug in and presets with the Installer The online version of the package has been prepared for Internet delivery and is transmitted as a compressed file in zip format zip In Mac OS X 10 4x or 10 5 x simply double click the zip file to unpack the installer The boxed plug in package purchased at your local dealer will be on CDROM As with the online version these physical versions of the Channel G Compact plug in package should be copied into a local folder on your system Insert the McDSP HD Disk Native Disk or LE Disk CDROM onto an available CDROM drive Navigate to the Channel G Compact plug in folder on the CDROM the installer application is contained therein Run the Channel G Compact plug in Installer application to install copy the Channel G Compact plug in presets and documentation to a local folder on your system The plug in will be placed in the Plug Ins folder and the presets will be placed in the Plug ins Settings folder Ifa previous version of the Channel G Compact plug in or
41. s distributed will be free from defects Your sole remedy in the event of a breach of this warranty will be that McDowell Signal Processing Limited Liability Company w l at ts option replace any defective media McDowell Signal Processing Limited Liability Company does not warrant that the Software will meet your requirements or that the operation of the Software wil be uninterrupted or that the Software wll be error free THE ABOVE WARRANTY Is EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESSED OR IMPLIED INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS YOU MAY HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE Disclaimer of Damages REGARDLESS OF WHETHER ANY REMEDY SET FORTH HEREIN FAILS OF ITS ESSENTIAL PURPOSE IN NO EVENT WILL McDowell Signal Processing Limited Liability Company BE LIABLE TO YOU FOR ANY SPECIAL CONSEQUENTIAL INDIRECT OR SIMILAR DAMAGES INCLUDING ANY LOST PROFITS OR LOST DATA ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE EVEN IF McDowell Signal Processing Limited Liability Company HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES SOME STATES DO NOT ALLOW THE LIMITATION OR EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU IN NO CASE SHALL McDowell Signal Processing Limited Liability Company s LIABILITY EXCEED THE PURCHAS
42. th these instructions Both the boxed and online versions of the Channel G Compact installer are the same and will install both the plug in and its presets on your system Note that after installing new versions of the PACE iLok drivers with the Channel 6 Compact plug in installer you will need to reboot your system You will not be prompted to reboot and if you don t you may see an error message saying TPkd driver required and a reboot Please reboot or reinstall the software If you see this message simply reboot the console and try again Insert the McDSP HD Disk CDROM onto the CD drive Note that neither the MeDSP Native Disk nor the LE Disk contains VENUE compatible installers Ensure your system is in CONFIG mode you cannot install plug ins in mode Navigate to the OPTIONS page and then select the PLUG INS tab You should now see the Channel G Compact plug in available on the left hand side Getting Started Select the Channel G Compact plug in and select INSTALL Ifa previous version of the Channel G Compact plug in was already installed it will be updated by the installer Important note for FilterBank HD and CompressorBank HD on VENUE D SHOW consoles The first time you instantiate either of these plug ins a dialog box will appear asking you to choose a user interface preference Choose the Knobs interfaces as some of the Slider interfaces are too large for the VEN
43. the purpose of describing the sounds Produced by the McDSP Channel G Compact plug in While Channel G Compact emulates the sounds of these consoles MEDSP makes no representation or warranty that Channel G Compact is identical to or duplicates these consoles Response Plots Channel G Compact displays the input output transfer function of the Compressor Limiter as well as the frequency response of the Filter and EQ sections The Channel G Compact configurations display the frequency response of the Filter section The transfer functions are displayed over a 60 dB range The frequency response display shows a center line at 0 dB and extends to 18 dB in the visible display Console Meters The Channel G Compact plug in groups all metering functionality in the center of the user interface Displayed meters are Input post Input Gain Compressor Limiter gain reduction Compressor Limiter output post Makeup Gain and final Output post Output Gain Gain reduction meters are completely orange The remaining signal level meters are green for all metered values at and below 6 dB Metered values above 6 dB are displayed in yellow There are peak LED indicators above each signal level meter Input Compressor Limiter or DYN Output Output that will light when the signal level is approximately 0 05 dB These peak LEDs can be cleared by simply clicking on the lit portion with the mouse The option to dear all clip meters is availab
44. tings morph the shelf into a gradual more vintage styled slope with a slight undershoot in he non shelved band The parametric bands have a good Q range 1 0 to 12 0 and the band overlap is geared towards the creative equalization needs of music production Frea ranges LF 20 to 400 He LMF 200 to 2000 He HMF 800 to 8000 He HF 2000 to 20000 Hz POST Another design unique to McDSP this shelf mode has the steepest of all the various EQ shelf modes available in Channel G Compact The Q control adjusts the amount of undershoot in the shel allowing the shelf boostieut to be further accented by the scoop just after ow shelf or just before high shelf the main The parametric bands have the widest Q range of all the modes 04 to 160 The overlap is nearly complete with the bands low ranges only 40 Hz apart and each Spanning 2 decades the base frequency to the base frequency times 100 Frea ranges LF 40 to 4000 He LMF 80 to 8000 Hz HMF 160 to 16000 He HF 200 to 20000 Hz This EQ config is derived from measurements taken of Various SSL series E equalizer sections Nate the control ranges all match the original SSL console and even the HPF and LPF sections wil adjust their ranges to that of he SSL consoles The ather popular SSL EQ the series G has sutstantialiy different shelf shapes than found on the Eseries Freq ranges LF 30 to 450 He LMF 200 to 2500 He HMF 600 to 7000 Hz
45. used solely for the purpose of describing the sounds Produced by the McDSP Channel G Compact plug in While Channel G Compact emulates the sounds of these consoles McDSP makes no representation or warranty that Channel G Compact is identica to or duplicates these consoles medsp com Page 17 Channel G Compact Plug In Reference Guide Channel G Compact Specifications Settings Function m ato 24 d8 Amount of gain applied to the signal before it reaches the Expander Gate and Fiter sections COMPRESSORUMTER KEY Output of the Compressor Selects the signal used to cause the Compressor Limiter tee Original Limiter to begin reducing signal dynamics Input range once it exceeds the selected threshold Side Chain key signal The choices are the original input the side Output of the Fiter chain key signal the output of the Fiter section Section ar the output of the Compressor Limiter tel feedback KNEE Tard Shape of the compression curve The greater 10 soft modes the Knee control value the smocther the 5 modeled modes transition into the compression zone above the selected threshold There are several addtional Knee control modes that model specific compressors found in analog mixing consoles FANG T1 to 1100 Umie Slope or input to output ratio of the Compressorftimiter When this control is near its maximum 100 1 the process acts as amier ATTACK OF to 100 meee Rate at which the Compressor Lim
46. ut often referred to feedback compression is found in many vintage compressors such as the API 225 compressor The more common technique found in modern dynamic range processors is feed forward compression the use of the input signal as the compression key In fact the API 225 is one of the only compressors along with Channel G Compacts Compressor Page Limiter that allows the user to switch between feed forward and feedback compression Why should the use of a Feed back compressor be considered then in today s modern production facilities This type of compression while susceptible to pumping or breathing the overall signal level can be useful in addressing certain dynamic range problems For example a suppose you needed to process a lead vocal that has a good deal of dynamic range changes and is sung in an aggressive style Heavy compression is needed to limit the maximum signal level and even the softest of knee shapes does not alleviate the unwanted compressed vocal effect thus rendered Using the compressor output as the key signal the transition between the compressed and un compressed signal is minimally different Because the key signal is already compressed the compressor will trigger more subtley and possibly produce a more desirable effect A Closer Look at the Dynamics Filter section The Filter section of Channel G Compact uses the same algorithms as found in the Channel G plug in Filt
47. w option is checked In one of the inserts of a stereo master fader select the Channel G Compact Dynamics stereo configuration On another insert select the Channel G Compact Equalizer stereo configuration Note the Channel G Compact plug in will operate on master or regular audio tracks in mono or stereo versions Ifthe insert selection does not show Channel G Compact plug ins verify that the Channel G Compact plug in has been installed correctly For more information on starting ProTools and working with plug ins see Digidesign s ProTools Reference Guide Channel G Compact Overview Flow Diagram Selectable in the GPH Dynamics and G Console configurations via the GPH and 516 buttons the Flow Diagram press SIG shows all signal paths routing and inline status of all sections Key signal flow is also displayed along with the active status of the selected key When the user selects a key input such as a buss if there is nothing routed to that buss the key signal path remains unlit Once signal is routed to the selected key track the signal path glows to indicate the presence of an actual key signal Knobs To adjust any of the controls with knobs you can Click and drag the knobs note the knob will respond to left right or up down mouse movement and will lock to the left right or up down movement once the mouse is dragged beyond the knob graphic this significantly re
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