SS8IO-3 8 Channel Audio Interface User`s Manual
Contents
1. trademarks of International Business Machines Corporation Tascam DA 88 and the TDIF interface are registered trademarks of TEAC Corporation Any other trademarks not mentioned above are the property of their respective owners The Tascam Digital Interface TDIF 1 has been licensed by TEAC Corporation and is their sole property TDIF 2 Revision 1 0a Soundscape SS8IO 3 8 Channel Audio Interface SSSIO 3 8 Channel Audio Interface The Soundscape SS8IO 3 8 Channel Audio Interface provides eight high quality analogue input output channels combined with the TDIF Tascam Digital Interface multi channel digital audio interface and 8 channel LED input level indication The TDIF digital interface is now an industry standard and was originally designed for the popular digital multi track tape machine the Tascam DA 88 This interface now appears on a variety of different digital mixing consoles sound cards and converter units The SS8IO 3 can be used with the Soundscape mixtreme Soundscape SSHDR1 Plus Digital Audio Workstation or with an SSHDRI upgraded with the SSAC 1 Accelerator Card and Version 2 0 software to convert the TDIF interface of the SSAC 1 into eight analogue inputs and outputs The unit can also be used to add additional analogue channels to some of the digital mixing consoles that have TDIF interfaces as standard Examples of these include the popular Yamaha 02 R and 03 D consoles The components used in the SS8IO 3 for2. 256 x sample rate signals for the W S Clock in out and for the TDIF port These should only be changed from the factory default positions shown below when you have a specific case that requires a different form of clock synchronisation This would be the case if you need to use superclock instead of wordclock Sync In sets the type of signal required at the W S Clock input Sync Out sets the type of signal generated at the W S Clock output n c is a spare switch with the current firmware revision Phase Select allows the phase relationship of the wordclock relative to left right clock part of the digital audio stream to be selected Some devices specify that there should be for exa mple a 90 phase shift between the timing of the wordclock logic signal and the left right clock so it can be important in ensuring that the audio data is transferred error free 5 Revision 1 0a Soundscape SS8IO 3 8 Channel Audio Interface TDIF Out selects the type of wordclock that is generated for the TDIF interface port 6 Revision 1 0a Soundscape SS8IO 3 8 Channel Audio Interface The settings are shown from left to right so for example Switch 2 SyncOut1 is set to 0 up and Switch 3 SyncOut0 is set to 1 down so reading both switches gives 01 Note Factory default settings are as shown in the diagram Sync In 0 wordclock Sync Out 01 wordclock SyncOut0 n c 1 a Phase Select 01 90 TDIF Out 01 wordcloc
3. Poundscape DIGITAL AUDIO WORKSTATIONS SS8IO 3 Channel Audio Interface User s Manual Revision 1 0 Soundscape SS8IO 3 8 Channel Audio Interface Information in this document is subject to change without notice and does not represent a commitment on the part of Soundscape Digital Technology Ltd No part of this document may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying and recording for any purpose without the express permission of Soundscape Digital Technology Ltd or Sydec NV The Soundscape SSHDR1 Plus Digital Audio Workstation and the Soundscape SS8IO 3 8 Channel Audio Interface when used in conjunction with a PC or compatible computer form a high quality digital audio recording device The unit is intended for recording editing and arranging of original or authorised material Users should note that the use or copying of unauthorised material is illegal and infringes the copyright of the legal owner of the material Any person found making illegal copies will be liable to prosecution under copyright law Copyright 1993 to 1998 by Soundscape Digital Technology Ltd All rights reserved Hardware and Software Copyright 1993 to 1998 by Sydec NV All rights reserved Soundscape and mixtreme are registered trademarks of Soundscape Digital Technology Ltd Windows 95 Windows 98 and Windows NT are registered trademarks of Microsoft Corporation IBM and PC AT are registered
4. analogue input and output are of the highest quality ensuring that in this very important area the audio performance is excellent The 20 bit analogue to digital AD and digital to analogue DA converters are from AKM and are well known as providing superior quality digital audio conversion These and the input output amplifiers are expensive components which meet the exacting requirements for professional audio recording reproduction and provide a higher performance level than can be obtained with converters intended for multi media applications as used for low cost soundcards The SS8IO 3 also allows sample rate synchronisation using external Wordclock signals or these can be derived from the TDIF digital interface Synchronisation with external Superclock signals at 256 x Wordclock rates is also provided Superclock is the clocking rate for digital audio devices such as AD DA converters or digital audio receivers transmitters It can provide a more secure synchronisation method than using Wordclock when several digital audio devices are connected together and are slaving via timecode to a device such as a video or audio tape machine film projector or film editing table In most circumstances Superclock will not be required Front Panel amp Channel Analog TOF Sssino 3 ON INPUT 43 3 KHz TDIF 28 kHz E INT EXT S RATE CLOCK From the front panel you can select and view the current sample rate and select the clock source All cur
5. bit DA Converters Maximum output level 3dBU Output S N Ratio 97dB unweighted Output THD N less than 94dB at 1kHz 20dBFS Output Crosstalk 100dB at 1kHz FS Frequency Response 30Hz to 20kHz 0 2dB Passband Ripple 0 005dB 8 x Analogue Inputs Single ended input amplifiers with RCA cinch connectors Input Level 3 5dBU AKM 20 bit AD Converters Maximum input level 3dBU for full scale Input S N Ratio 97 5dB A weighted Input THD N better than 0 01 at 1kHz 1dBFS Input Crosstalk 100dB at 1kHz FS Frequency Response 30Hz to 20kHz 0 2dB Passband Ripple 0 005dB Input Impedance 30kohms Metering 8 channel LED input level metering at 30dBFS and 3dBFS Clocks 2 x RCA cinch connectors for W S Clock in out Resolves clock from TDIF digital inputs or from external Wordclock or Superclock 256 x Wordclock 4 Revision 1 0a Soundscape SS8IO 3 8 Channel Audio Interface Internal clock generator 44 1kHz 48kHz Generates external Wordclock or Superclock signals from any clock source Wordclock phase shift is selectable via rear panel Option DIL switches Main Operation The front panel buttons and LED indicators are used to set up the sample E 44 1kHz O TDIF rate and clocks A description of the operation follows O48kHz INT S RATE O EXT The S RATE Sample Rate button allows the internal wordclock of the SS8IO 3 to be set to 44kHz or 48kHz When internal clock is n
6. k Sync In Sw1 0 wordclock 1 superclock Sync Out Sw2 Sw3 00 no signal 01 wordclock 10 phase shifted wordclock 11 superclock n c Sw4 l Phase Select Sw5 Sw6 00 0 01 90 10 180 11 270 TDIF Out Sw7 Sw8 00 no signal 01 wordclock 10 phase shifted wordclock For the Option DIL switch setting displayed in test mode see later the bit positions are as follows SW 1 b7 SW2 b0 SW3 b6 SW4 b1 SW5 b5 SW6 b2 SW7 b4 SW8 b3 Test Mode There is an internal diagnostic mode which tests the EEPROM shows the Option DIL switch settings shows the firmware revision and checks all LEDS The test mode can be entered by pressing and holding the S RATE and CLOCK buttons for at least 2 seconds during power up Press any button to advance through 4 diagnostic steps Step 1 Release the S RATE and CLOCK buttons when following LED s illuminate hold down longer than 2 seconds TDIF ch 2 red ch 4 ch 6 ch 8 The Unit is now in non volatile memory test mode If the test failed the ch 8 red LED will illuminate nie ke OFF ATE GLOCK gt 2sec Press any button Step2 The Unit is now in read dip switch mode The value of dip switch is shown on LED s ch 1 8 red Factory default is indicated rev1 1 7 Revision 1 0a Soundscape SS8IO 3 8 Channel Audio Interface Press any button Step 3 The Unit is now in firmware revision mode The value is shown on LED
7. ot being used the LEDs will indicate the actual sample rate that is being received S RATE CLOCK If there is an error or the sample rate does not fall within the tolerances which are normally expected then the LEDs will flash If pressing the S EA RATE button has no effect on the sample rate then check that the CLOCK see below is set to INT internal CLOCK The CLOCK button is used to select the source for the wordclock used A wordclock can be derived from the TDIF input or from the external EXT wordclock superclock W S CLOCK input on the rear of the unit or the internal INT clock can be used If there is no signal detected for the selected clock source then the LED will flash to indicate an error Using the SS8IO 3 with the mixtreme PCI Card or SSHDR1 Plus Generally when the SS8IO 3 is used with an SSHDR1 Plus system the major requirement will be to turn the 8 digital in out channels from the SSAC 1 TDIF port into analogue channels Connect the SS8IO 3 TDIF port to the TDIF connector on the mixtreme PCI Card or SSHDR1 Plus unit Normally the TDIF Clock setting should be used for the SS8IO 3 as the SSHDR1 Plus or mixtreme PCI Card would be set to Internal Clock and so would determine the sample rate Rear Panel Settings OPTION 8 Way DIL Switch The OPTION 8 way DIL switch on the rear panel of the SS8IO 3 allows setting of parameters relating to generating or receiving wordclock sample rate and superclock
8. rent settings are saved in an internal EEPROM electrically erasable programmable read only memory The LED input metering indicates green there is a signal at a level above 30dBFS and red when the level is above 3dB Rear Panel DESGUED ANO HANUFACTUMES mamar ec IRINA oy ac IN 700mA Ter ron OO OPTION WIS CLOCK 3 Revision 1 0a Soundscape SS8IO 3 8 Channel Audio Interface The SS8IO 3 rear panel has 8 unbalanced analogue inputs and outputs all with RCA cinch connectors A standard female 25 way sub D connector for the TDIF port is also provided with two RCA cinch connectors for generating or receiving external Wordclock or Superclock An 8 way DIL switch is used to set options for the Wordclock or Superclock synchronisation The unit can be powered with the 9V 230V AC supply or 115V AC nominal supplied with the unit at 50Hz or 60Hz Power consumption is 5W Technical Specifications Sample Rates 44 1kHz 27 to 48kHz 12 with clocks resolved from TDIF or external Wordclock inputs Internal sample rate generator 44 1kHz or 48kHz 30ppm 16kHz to 48kHz 12 with Superclock input Digital Ports TDIF Tascam Digital Interface 8 Channel bi directional 24 bit digital interface with 25 way sub D female connector Conforms to Tascam TDIF 1 specification Analogue Ports 8 x Analogue Outputs Single ended input amplifiers with RCA cinch connectors Output level 3 5dBU AKM 20
9. s ch 1 8 red Revision 1 0 off off off on off off off off Revision 1 1 off off off on off off off on oO O o o i si high nibble ow nibble OFF Bali e iui Press any button Step 4 The Unit is now in led test mode Press any button Exit to normal operation Revision 1 0a Soundscape SS8IO 3 8 Channel Audio Interface INDEX SS8IO 3 8 Channel Audio Interface 3 Front Panel 3 Rear Panel 3 Technical Specifications 4 Main Operation 5 S RATE 5 CLOCK 5 Using the SS8IO 3 with the mixtreme PCI Card or SSHDR 1 Plus 5 Rear Panel Settings 5 OPTION 8 Way DIL Switch 5 Test Mode 6 9 Revision 1 0a
Download Pdf Manuals
Related Search