Note Gate 2 User Manual
Contents
1. Press the Enter key to execute this command Please send the output of this command to frank audiowish com for further troubleshooting the problem Audible pops and clicks Pops and clicks are usually the results of one of three causes e Verify that the original incoming audio signal does not contain pops or clicks Note Gate 2 will only alter the volume of the incoming signal and won t correct imperfections e Using Activity Monitor verify your computer s CPU usage for spikes or constant high load 4 if the Audio Unit host application cannot process its audio signals within a short amount of time it will generate a pop or click Pitch tracking is incorrect or unstable If the pitch monitor built into Note Gate 2 consistently reports incorrect or inaccurate notes please check the following conditions e Make sure that the Note Gate 2 Audio Unit receives a monophonic instrument signal with proper volume and try raising or lowering the volume of the incoming signal e Check if the A4 frequency parameter corresponds with the current tuning of the instrument you are playing and check the tuning of your instrument retuning it if necessary 12 Consult your application s manual documentation or contact the manufacturer of the software 13 If your system does not have the auval utility installed indicated by a command not found message you can get it as part of the Xcode suite Consult Apple s developer webs2. This threshold will prevent stray harmonics and noise from influencing the note recognition The default accuracy threshold suits most instruments like guitars keyboards flutes and even vo cals If you find that the pitch tracking isn t working properly for you read the Pitch tracking is incorrect or unstable section first Determine an optimal value for the accuracy threshold by playing notes all along the full range of the instrument and checking the Pitch monitor accuracy as the note changes Note the lowest ac curacy you see when playing different notes Use this lowest accuracy minus twenty five percent as a starting point for tweaking the accuracy threshold You will want to find a value that is comfortably low enough for each note to be recog nized while preventing small imperfections from accidently triggering a note change Jitter threshold Stabilizes the pitch tracker s note recognition The jitter threshold allows you to guard yourself against short bursts of odd harmonics and noise by setting a minimal threshold on the duration of a note forming a useful safety net Stray harmonics and noise typically last only a few milliseconds which you can filter out by in creasing the jitter threshold The jitter threshold depends on the sample rate for time measurement so you will usually want to increase this parameter as the sample rate increases 11 Note that the jitter threshold is applied after the acc
3. 000 1 000 Secs Gate Monitor Gate Monitor current volume 00 100 0 current volume 0 100 0 current note Pitch tracker off current note Pitch tracker off accuracy 0 0 a e mm 100 0 accuracy 0 0 aban mm 100 0 Pitch Tracking Pitch Tracking A4 frequency 400 0 rr 480 0 440 0 Hz A4 frequency 400 0 fn 480 0 440 0 Hz accuracy threshold 0 0 100 0 25 0 accuracy threshold 0 0 ee 100 0 25 0 jitter threshold 0 00 fes 16 00 1 00 Samps jitter threshold 0 00 Q 16 00 1 00 Samps Influence of the Note Gate 2 key in red and master volume in blue parameters As you can see the key parameter sets the scale root note unison but retains the scale volume pat tern which allows you to use a scale volume pattern in different keys The master volume adjusts each of the individual note volume sliders by the same amount This al lows you for example to raise the volume of the output signal by a certain amount using only a single parameter Page 8 of 22 Note Gate 2 Audio Unit User Manual Volume group The volume group contains the target volume parameters for each one of the twelve notes in the twelve tone equal temperament scale These volume parameters let you set a different target vol ume per note ranging from total silence 0 to full volume at 100 The parameter name of each note consists of the relative interval to the root note and the absolute note name as based on the key To get a feel for Note Gate 2
4. Use a short attack and release time to make sure your custom effect is only applied to the notes of the melody you want without affecting other notes which are played shortly beforehand or after wards 8 Reverse Sampler 2 is a real time reverse delay Audio Unit developed by Audiowish See http www audiowish com audio units reverse sampler html for details and a trial version Page 12 of 22 Note Gate 2 Audio Unit User Manual This selective effects chain can be stacked meaning you can add as many parallel buses with dif ferent effects on them as your computer allows On each bus add a Note Gate 2 instance and another effect and make sure each Note Gate 2 in stance filters different notes or allow some overlap Using the stacked approach and Diatonic Shifter 2 you can easily create complex harmonies that are still played on a single instrument Using the right Audio Unit host software the possibilities are near endless Selective harmonizer Zooming in on the selective effect effects chain we can replicate a selective harmonizer using Note Gate 2 Octave Shifter 210 and a generic reverb effect The following diagram shows the effects chain for this idea Reverb feedback 20 Reverb Output In scale notes 100 Transpose Long reverb Fast attack 1200 cents Fast release Unmodified signal Effects chain for creating a selective harmonizer using Note Gate 2 and Octave Shifter 2 Again you can create l
5. display to tweak the attack and release time parameters to your liking Current note Shows the note that the pitch tracker currently detects in the input signal Page 15 of 22 Note Gate 2 Audio Unit User Manual Although the current note parameter can not be manipulated it provides useful information for tweaking and troubleshooting the pitch tracker which is built into the Note Gate 2 Audio Unit Accuracy Displays the current confidence of the pitch tracker on a scale of zero to one hundred percent The accuracy meter is your main instrument for tuning the pitch tracker if results are flaky High accuracy values indicate that the incoming audio signal clearly carries a key note Low accu racy values are an indication of a noisy or strongly polyphonic input signal Refer to the Pitch tracking is incorrect or unstable section for applications of both the current note and accuracy parameters Pitch tracking group A4 frequency Sets the base frequency of the middle A note in Hertz Change the A4 frequency parameter if your musical instrument is known to be tuned to a different frequency Most instruments and musical performances are based around the A4 note having a frequency of 440 Hertz Accuracy threshold Controls the minimally required pitch tracking accuracy for recognizing a note As the name implies the Note Gate 2 pitch tracker will only pick up new notes if the confidence of the tracker is above the accuracy threshold
6. fully functional version of the Note Gate 2 Audio Unit visit its product page on the Internet http www audiowish com audio units note gate html Page 6 of 22 Note Gate 2 Audio Unit User Manual Using Note Gate 2 Interface overview Note Gate 2 is an Audio Unit effect not a stand alone application You will need an Audio Unit ver sion 2 compliant host application to be able to use Note Gate 2 in your effects chain Please refer to your host software s manual on how to add Audio Unit effects to your projects In this manual we will look at Note Gate 2 in Apple s AU Lab host application using the generic Cocoa interface or view Audio Unit Note Gate 2 Manufacturer Audiowish Transposition key C HJ master volume 0 0 100 0 100 0 Volume unison C 0 0 ef 100 0 100 0 minor second C 0 0 ef 100 0 100 0 major second D 0 0 ef 100 0 100 0 minor third D 0 0 mm 100 0 100 0 major third E 0 0 m 100 0 100 0 fourth F 0 0 ee 100 0 100 0 aug fourth F 0 0 100 0 100 0 fifth G 0 0 eG 100 0 100 0 minor sixth G 0 0 memes 100 0 100 0 major sixth 0 0 e 100 0 100 0 minor seventh A amp 0 0 ef 100 0 100 0 major seventh B 0 0 ef 100 0 100 0 _ Timing attack time 0 010 Op 10 000 1 000 Secs release time 0 010 Op 10 000 1 000 Secs Gate Monitor current volume 0 0 Pl 10
7. set the volume parameter for the F note to 0 and play a melody in C major You ll notice that all notes sound as usual but as soon as you play the F the volume starts to fade out play a different note and the volume gradually fades in again Experiment with the different note volume sliders the master volume and the key parameter to get a feel for interacting with Note Gate 2 Once you feel comfortable with the volume fading concept move on to the next section Timing group As you have experienced Note Gate 2 gradually fades the signal volume in or out The parameters in the timing group let you control the speed at which Note Gate 2 fades The attack time parameter controls the speed of volume increases while the release time parameter controls the speed of decreasing the volume Both times are entered in seconds and are based on the time it takes to fade from 0 to 100 attack or from 100 to 0 release Again it would be wise to experiment a bit with both timing parameters to see which effects you can achieve with Note Gate 2 Gate Monitor group The gate monitor group contains all information about Note Gate 2 internals at a glance You can instantly see the currently applied gate volume the note you are playing and the accuracy of the pitch detection Note Gate 2 features a real time pitch tracker which analyzes the incoming audio signal and deter mines which note is being played The current note and accuracy parameters let yo
8. www audiowish com Page 4 of 22 Note Gate 2 Audio Unit User Manual Note Gate 2 Audio Unit Introduction Note Gate 2 is a real time pitch based Audio Unit volume filter effect By leveraging existing technologies like CoreAudio SSE and Altivec Note Gate 2 offers a unique audio experience Key features of the Audio Unit include e low latency processing for live performances e robust real time diatonic pitch tracker with integrated visual pitch monitor e dedicated filter attack and release time settings for maximum flexibility Additionally Note Gate 2 makes use of the industry standard generic Cocoa and Carbon graphical interface views for Audio Units offering a seamless integration into host applications like Logic Express and Pro Garageband Final Cut Express and Pro and Soundtrack System requirements To use the Note Gate 2 Audio Unit you will need at least the following configuration e Apple Macintosh computer with an Intel or PowerPC G4 or GS processor e Mac OS X Snow Leopard 10 6 or higher for the optimized Intel 32 64 bit version e Mac OS X Tiger 10 4 or higher for the legacy PowerPC compatible version e 5 Mb of free disk space e Audio Unit version 2 host software All existing Apple Intel and recent PowerPC computers will conform to these requirements and should have no problems running the Note Gate 2 Audio Unit In this manual real time refers to internal processing latencies lower than 2 millisecond
9. 0 0 x current note Pitch tracker off accuracy go 100 0 Pitch Tracking A4 frequency 400 0 irr 480 0 440 0 Hz accuracy threshold 0 0 Oe 100 0 25 0 jitter threshold 0 00 Qn 16 00 1 00 Samps 4 Note Gate 2 generic Cocoa view in AU Lab Like other Audio Units you can adjust Note Gate 2 s processing settings by manipulating the on screen parameters using your mouse or keyboard 5 Popular Audio Unit host applications are Logic Pro Garageband and AU Lab You can find more Audio Unit host software on Apple s Mac OS X Downloads page at http www apple com downloads macosx Page 7 of 22 Note Gate 2 Audio Unit User Manual Basic usage Getting started The first time seeing the Note Gate 2 Audio Unit might feel a bit overwhelming but don t be in timidated by the sheer number of parameters and settings You will feel at home in no time by fol lowing this brief tutorial Note Gate 2 is a volume filter effect that changes the output volume based on the notes in the input signal By using the attack and release time parameters in the timing parameter group you can achieve lots of different effects Take a deep breath and relax as we now take a look at each of the parameter groups in the interface Transposition group At the top of the interface is the transposition group which allows you to set both the key of the mu sical piece you are playing and a master volume for every note in the scale Try
10. Note Gate 2 Audio Unit User Manual Copyright 2007 2012 Audiowish Note Gate 2 Audio Unit User Manual Table of Contents Preface About this manual About Audiowish Note Gate 2 Audio Unit Introduction System requirements Installation Trial version limitations Using Note Gate 2 Interface overview Basic usage Getting started Transposition group Volume group Timing group Gate Monitor group Pitch Tracking group Congratulations Usage Examples Introduction Simple volume swells Backing volume swells Fake reverse delay Selective effect Selective harmonizer Audio Unit Parameters Overview Transposition group Key Master volume Volume group Unison Major seventh Timing group Attack time Release time Gate monitor group Current volume oococooOoNNNO oa Aa KR HK A OE ett Code te a do ee Goi ep og Lu BR KR BR B OPM ND A wo q Es tm oao oaoa oaoa O1 A k q q q Page 2 of 22 Note Gate 2 Audio Unit User Manual Current note Accuracy Pitch tracking group A4 frequency Accuracy threshold Jitter threshold Troubleshooting Note Gate 2 does not show up in host software Audible pops and clicks Pitch tracking is incorrect or unstable Known Issues Parameter groups not shown in Carbon interface Third party graphical interface imperfections General Absolute note names are not updated Master volume does not update note volumes interactively Gate monitor is not shown Gate monitor disp
11. ale transposition pattern with the key parameter set to the root note of the equivalent major scale Do not set the key parameter to A when working in A minor in stead set it to C because of the equivalent C major scale Master volume Controls all individual scale volume parameters at once Use the master volume slider to easily raise or lower the volume for every individual note Note that the lower and upper boundaries of the individual volume parameters will always be main tained you can not raise a note s volume to a value above 100 or lower than 0 using the mas ter volume slider Page 14 of 22 Note Gate 2 Audio Unit User Manual If setting the master volume to a new value would cause an individual note volume to exceed its boundaries the value will be clipped to fit within the boundaries As long as Note Gate 2 is active the master volume slider can be used to undo this clipping Volume group Unison Major seventh Controls the target volume of each note in the scale Note Gate 2 labels each individual note with its interval relative to the root note like major second or perfect fifth as well as the absolute note name based on the key like D or G The target volume for each note is defined in percent with 0 being total silence and 100 equal ling the original signal s volume Because Note Gate 2 is a dynamic diatonic volume changing effect the actually applied volume change at any given point in time is depe
12. ating system requirements installation instructions and version history November 21 2007 Minor update to the Acknowledgments section November 20 2007 Added the Fake reverse delay usage example November 19 2007 Minor updates to the Introduction and Version History sections November 15 2007 Initial draft for internal use Disclaimer First of all thank you for your interest in the Note Gate 2 Audio Unit We hope you will enjoy the continued use of this software product The Note Gate 2 Audio Unit has been designed programmed and extensively tested for use in a great diversity of operating conditions Even though a lot of care and testing went into the user in terface and algorithms in this product we can not guarantee flawless operation under every condi tion imaginable Under no circumstances including negligence shall the author be liable for any incidental special or conse quential damages that result from the use or inability to use the Note Gate 2 Audio Unit even if the author has been advised of the possibility of such damages You may not redistribute versions of the Note Gate 2 Audio Unit other than the Trial version without the author s prior written consent All quoted products and trademarks are the property of their respective owners Page 22 of 22
13. changing each parameter and observe the changes in the interface visualized below Audio Unit Note Gate 2 Manufacturer Audiowish Transposition Audio Unit Note Gate 2 Manufacturer Audiowish Transposition key c i key C master volume 0 0 om 100 0 100 0 master volume 0 0 ft 100 0 100 0 Volume o unison C 0 0 mm 100 0 100 0 unison C 0 0 m 100 0 100 0 minor second C 0 0 NM 100 0 100 0 0 0 mf 100 0 100 0 n major second D 0 0 eff 100 0 100 0 0 0 eff 100 0 100 0 Lt minor third D 0 0 m 100 0 100 0 0 0 eff 100 0 100 0 major third E 0 0 100 0 100 0 0 0 eff 100 0 100 0 sed fourth F 0 0 mm 100 0 100 0 fourth F fs 100 0 100 0 Lt aug fourth Fit 0 0 eff 100 0 100 0 aug fourth F 0 0 eff 100 0 100 0 fifth G 0 0 e 100 0 100 0 fifth G 0 0 B 100 0 100 0 minor sixth G 0 0 nD 100 0 100 0 minor sixth G 0 0 100 0 100 0 nt major sixth A 0 0 HD 100 0 100 0 major sixth A 0 0 fl 100 0 100 0 as minor seventh A 0 0 nD 100 0 100 0 minor seventh A 0 0 nD 100 0 100 0 nt major seventh B 0 0 fi 100 0 100 0 major seventh B 0 0 fl 100 0 100 0 Timing Timing attack time 0 010 eme 10 000 1 000 Secs attack time 0 010 eme 10 000 1 000 Secs release time 0 010 O 10 000 1 000 Secs release time 0 010 ___ 10
14. ite http developer apple com on how to obtain Xcode 4 On multi processor or multi core systems check for spikes or high load on single processors or cores Page 18 of 22 Note Gate 2 Audio Unit User Manual If these actions do not solve the issue follow the instructions listed under the Pitch tracking group in the parameter overview to set the accuracy and jitter thresholds to their optimal values Known Issues Parameter groups not shown in Carbon interface The generic Carbon Audio Unit interface provided by Apple does not support parameter groups for Audio Units There is currently no known workaround but Note Gate 2 will perform normally de spite the minor graphical differences compared to the Cocoa interface Note that the generic Carbon Audio Unit interface inserts small horizontal separators between pa rameter groups to visually distinguish them Third party graphical interface imperfections General Third party Audio Unit host applications are known to provide custom but not fully compliant graphical interfaces for Audio Unit effects While the graphical interface might show minor imper fections audio processing is unaffected Known issues and workaround for third party graphical interfaces are listed below Absolute note names are not updated Apparently the Audio Unit host application does not support live changes of parameter information when the key parameter changes Either use the relative note
15. lays Trial muted message Trial label still showing after installing full version Version History Acknowledgments Stephan M Bernsee Tim Bruniges Philippe Gruchet Revision History Disclaimer Page 3 of 22 Note Gate 2 Audio Unit User Manual Preface About this manual You are reading the Note Gate 2 Audio Unit user manual which covers installation and usage of the Note Gate 2 software effect After reading this manual you will be able to use the software in a va riety of Audio Unit hosts and know the purpose of each of the Audio Unit s processing parameters To obtain the latest revision of the Note Gate 2 user manual please visit the Audiowish website at http www audiowish com You will find an up to date version of the manual in PDF format ready for download The manual you are reading now was last modified on June 20 2012 For a brief overview of revi sions consult the Revision History section of this manual About Audiowish Audiowish is a young software company dedicated to developing high quality Audio Unit sound effects Thanks to our enthusiasm and continued interest in providing robust tools for musicians producers and sound engineers we re able to offer exciting products at very low prices Audiowish started in 2006 under the Forever For Now umbrella and became a dedicated effort in the third quarter of 2007 For the latest news and software updates visit the Audiowish website at http
16. names as a guide for setting up the scale transposition pattern or try closing and reopening the Note Gate 2 view or the host application itself after changing the key Master volume does not update note volumes interactively This problem is caused by the Audio Unit host application not reacting on interactive changes of the master volume parameter Instead of just dragging the parameter slider try releasing it frequently the note volume parameters will be updated accordingly as you release the slider Gate monitor is not shown The Audio Unit host application does not support read only parameters like the current volume cur rent note and accuracy meters Use a different host application like Garageband or Logic to determine correct values for your in strument and apply these as a guideline in the third party host application Gate monitor displays Trial muted message The trial version of Note Gate 2 will mute its output for a short period of time every few minutes See the Trial version limitations section for more information Page 19 of 22 Note Gate 2 Audio Unit User Manual Trial label still showing after installing full version After installing the full version of Note Gate 2 some host applications gt will continue to list the Audio Unit as Note Gate 2 Trial To resolve the issue go to Library Caches where repre sents your user folder and remove the com apple audiounits cache file This will cau
17. ndent on the note being played in the incoming audio sig nal and the value of the attack and release time parameters see the Current volume parameter Timing group Attack time Sets the amount of time the volume gate should take to increase the volume from 0 to 100 A long attack time will result in gentle slow fade ins while a short attack time almost instantly fades in the signal Please note that the actual fade in duration for a given played note is dependent on the target vol ume for that note and the current volume of the gate A high current gate volume and a low target volume can both shorten the fade in time Release time The release time parameter works exactly opposite of the attack time parameter it controls the amount of time the gate takes to decrease the volume from 100 to 0 A long release time will result in a smooth fade out while a short release time makes for quick fades Like the attack time parameter the actual duration of the fade out depends on both the target vol ume for the played note and the current volume of the gate A high target volume and low current volume can both shorten the fade out time Gate monitor group Current volume Shows the current volume of the gate The current volume parameter shows you the inner workings of Note Gate 2 at a glance You can easily see the influence of the Note Gate 2 volume gate by watching the current volume change in real time Use the current volume
18. ots of additional buses containing different gate settings and effects The four ideas listed in this section are hardly exhaustive and there are lots of ways to use Note Gate 2 to achieve great sounds Keep your mind and ears open looking for inspiring settings 9 Diatonic Shifter 2 is a real time diatonic pitch shifting Audio Unit developed by Audiowish See http www audiowish com audio units diatonic shifter html for details and a trial version 10 Octave Shifter 2 is a free ware Audio Unit developed by Audiowish optimized for pitch shifting an audio signal by a fixed amount See http www audiowish com audio units octave shifter html for details and downloads Page 13 of 22 Note Gate 2 Audio Unit User Manual Audio Unit Parameters Overview Note Gate 2 offers numerous parameters for controlling the audio processing The following table lists individual parameters their group range default value and unit of measurement An elaborate description of each parameter is included below the table Unison Major O 100 100 seventh Rem jus T amet fes Transposition group Key Sets the root note of the scale you are playing in Since the Note Gate 2 scale transposition pattern is entered relative to the scale s root note unison you can easily change the modality you are playing in by setting the key parameter while maintain ing the relative scale transposition pattern For consistency always create your sc
19. s 2 SSE will only be used on Intel based computers Altivec will only be used on PowerPC based computers 3 Note Gate 2 is packaged as a Universal Binary it performs equally well on Intel and PowerPC based computers 4 Disk space requirement is estimated actual required disk space may vary Page 5 of 22 Note Gate 2 Audio Unit User Manual Installation To install the optimized Intel 32 64 bit version of the Note Gate 2 Audio Unit on your computer drag the NoteGate component file from the disk image to the Install ALL users folder link in the disk image To install the legacy PowerPC compatible version open the Legacy version folder in the disk image and drag the NoteGate component file to the Install ALL users folder link Please note that Note Gate 2 will replace any previous versions of the Note Gate Audio Unit Make sure to back up previous versions of the Audio Unit and document your user presets before replac ing the old version If you want to make sure you performed the installation correctly refer to the Note Gate 2 does not show up in host software section in the troubleshooting chapter Trial version limitations The Note Gate 2 Audio Unit trial version is fully functional and will continue to function indefi nitely but every few minutes the output will be muted for a short period of time The trial version of Note Gate 2 may not be used for commercial purposes To obtain a
20. se the host application to rescan all Audio Units 5 This issue has been mostly reported by users of Apple s Logic line of software Page 20 of 22 Note Gate 2 Audio Unit User Manual Version History June 20 2012 Adding Intel 32 64 bit optimized version November 21 2007 Initial release of the Note Gate 2 Audio Unit Acknowledgments Stephan M Bernsee The Note Gate 2 Audio Unit builds on the work and tutorials written by Stephan M Bernsee posted on his website called DSP Dimension 6 Thanks to Stephan for answering questions and explaining audio concepts Tim Bruniges Tim Bruniges musician behind The Dead Sea offered valuable real life experience and feedback which has helped improve the live playability and usability of Note Gate 2 a lot Thanks to Tim for his enthusiasm and communications Philippe Gruchet Philippe Gruchet author of Open Tuning has offered a lot of suggestions ideas and testing on the PowerPC platform Thanks to Philippe for all communications and efforts which have helped make Note Gate 2 what it is today 16 See http www dspdimension com for Stephan M Bernsee s tutorials and examples 17 See http www thedeadsea org for more information on Tim Bruniges music p g g 18 See http www open tuning com for more information on Philippe Gruchet s Open Tuning software Page 21 of 22 Note Gate 2 Audio Unit User Manual Revision History June 20 2012 Upd
21. ter sets the frequency of the A4 note in Hertz In almost all cases the de fault value of 440 Hertz is correct Only set this parameter to a different value if you are playing in a non standard tuning or if your instrument is known to be slightly de tuned The pitch tracking threshold parameters fall outside of the scope of this basic usage tutorial See the Parameter Overview section for a technical explanation of these advanced parameters Congratulations If you have made it this far pat yourself on the back as you now know how to apply Note Gate 2 for automatic note based volume fades Explore the rest of this manual for additional creative ideas and technical details 7 See the A440 entry on Wikipedia for a historical overview of this frequency http en wikipedia org wiki A440 Page 10 of 22 Note Gate 2 Audio Unit User Manual Usage Examples Introduction Note Gate 2 can be applied for lots of different effects this chapter provides examples in which Note Gate 2 is integrated into an audio effects chain Be creative and explore the possibilities Simple volume swells While Note Gate 2 is best applied on a separate bus it s entirely possible to use it as the main effect on your melody for volume swells This diagram shows how to set up your effects chain Input Output In scale notes 100 Non scale notes 0 Slow attack Fast release Effects chain for simple volume swells with Note Gate 2 Set up
22. the Note Gate 2 scale volume pattern to allow all notes to pass at 100 volume in the de sired scale and set all other notes to 0 Use a moderate to long attack time two to ten seconds and a short release time one tenth of a second When you play chords or melodies in the scale you set up each chord or note you strike will now gradually fade in On a guitar slide your hands on the neck between each stroke to generate fret noise which will reset the gate volume These automatic volume swells sound great in combination with a long reverb or delay applied after Note Gate 2 Experiment with different settings to find a sound you love As you ll soon find out volume swells using Note Gate 2 are much easier than turning the volume knob on your instrument Backing volume swells Taking the simple volume swells a step further we can apply Note Gate 2 to a parallel bus and combine it with an effect you like This diagram shows Note Gate 2 powering a slow chorus back ing swell In scale notes 100 Non scale notes 0 Slow attack Fast release Slow chorus Output Original melody Effects chain for effected backing swells using Note Gate 2 Page 11 of 22 Note Gate 2 Audio Unit User Manual Note Gate 2 is set up just like the example before except it has been added to a parallel bus in front of a chorus effect Of course you can replace the chorus with any effect you d like to gradually fade in when playing To add extra punch
23. to the backing swell increase the volume of the parallel bus on which Note Gate 2 resides As your instrument s volume naturally fades after a few seconds the bus volume boost will allow the backing swell to sound as loud or louder than the original dry signal Fake reverse delay Note Gate 2 can be used to imitate a reverse delay effect like Reverse Sampler 28 without actually playing your melodies in reverse Use Note Gate 2 as the main effect on your effects chain as de picted in this diagram Input Output In scale notes 100 Non scale notes 0 Regular attack Fast release Effects chain for the fake reverse delay effect using Note Gate 2 Combine a regular attack time like half a second to one full second with a short release time like one hundredth of a second and set all in scale notes to 100 volume and the others to 0 As you play short phrases with a bit of dissonant noise in between Note Gate 2 will fade in each section dampening the initial attack of each note or chord which makes it sound like a reverse de lay is actually producing the sound Selective effect Another application of Note Gate 2 is to apply a distinct effect to specific notes in a melody This diagram shows a simple effects chain using Note Gate 2 Any Effect Special notes 100 Any settings Output Other notes 0 Fast attack Fast release Original melody Effects chain for applying an effect selectively using Note Gate 2
24. u inspect the pitch tracker so you can easily adjust the threshold parameters in the pitch tracker parameter group Sample gate monitor values are displayed in these screenshots Gate Monitor current volume 0 0 EFE 100 0 current note es accuracy 0 0 TT TT 11000 Note Gate 2 detects the note C being played with 55 confidence current volume is at 100 Gate Monitor current volume 0 0 TOTO 110000 amp current note As accuracy 0 0 TT 1100 0 6 See the Wikipedia article on equal temperament http en wikipedia org wiki Equal temperament Page 9 of 22 Note Gate 2 Audio Unit User Manual Note Gate 2 detects the note AK being played with 75 confidence current volume is at 75 Of course the higher the score within the accuracy meter the better the pitch tracker follows your melody Accuracy values of 25 or higher are sufficient for successful pitch tracking Besides indicating which note is being played along with the accuracy and current volume the pitch monitor can indicate that the pitch tracker is off as in this screenshot Gate Monitor o current volume 0 0 ES 100 0 current note Pitch tracker off accuracy 00m 100 0 Note Gate 2 indicates the pitch tracker is turned off The main reason for this indication is that the Note Gate 2 Audio Unit is being bypassed or muted from within the Audio Unit host application Pitch Tracking group The A4 frequency parame
25. uracy threshold The Note Gate 2 pitch tracker will only take suf ficiently accurate samples into account when considering the jitter threshold Page 16 of 22 Note Gate 2 Audio Unit User Manual Experiment with the jitter threshold to find the lowest value which does not cause the transposed melody to jitter while playing a melody If you are able to comfortably set the accuracy threshold to a value of twenty five percent or higher without the pitch tracker skipping notes you can typically set the jitter threshold to a very low value of zero or one The default settings are set up this way Page 17 of 22 Note Gate 2 Audio Unit User Manual Troubleshooting Note Gate 2 does not show up in host software If you did not follow the installation instructions in this manual please read and follow the Instal lation section first Note Gate 2 not showing up in your Audio Unit compatible host software can have multiple causes Please follow the following steps to make sure your computer is set up correctly e Verify that your host software supports version 2 Audio Units e Make sure that NoteGate component is installed correctly by double clicking the Install CALL users link in the disk image and checking if it is listed there da te e Use Apple s auval tool 3 to verify the Audio Unit is working correctly open up the Terminal application and copy and paste the following command auval v aufx ntgt Awsh
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