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20 

© 2000 Merging Technologies  

Sphynx User Manual

 

4 - AES-EBU I/O DUAL Mode 

The default Sphynx AES-EBU mode in ‘x2’ SR mode is HSR, where both left and right channels are conveyed on the 
same single AES-EBU signal. 
 
To provide compatibility with some early digital systems using two separate AES-EBU connections at x2 sampling 
rate, we have implemented the following selection:  
 
 
1)  When INPUT Dual AES-EBU mode is selected, all AES-EBU input modules are configured as DUAL whenever 

the ‘x2’ SR Mode is selected: 

 
 

Slot IN1/2 (Dual AES-EBU Mono) 

⇒

⇒

⇒

⇒

 

CH 1 (ADAT ODI-A OUT) 

 

Slot IN3/4 (Dual AES-EBU Mono) 

⇒

⇒

⇒

⇒

 

CH 2 (ADAT ODI-A OUT) 

 

Slot IN5/6 (Dual AES-EBU Mono) 

⇒

⇒

⇒

⇒

 

CH 3 (ADAT ODI-A OUT) 

 

Slot IN7/8 (Dual AES-EBU Mono) 

⇒

⇒

⇒

⇒

 

CH 4 (ADAT ODI-A OUT) 

 
 

Note: If a non-AES-EBU input module is present, its associated input channels are muted while in this mode. 

 
 
2)  When OUTPUT Dual AES-EBU mode is selected, and when the ‘x2’ SR mode is selected, three different Dual 

mode configurations can exist depending on the output modules present in the Sphynx: 

 

a)  Dual AES-EBU MIXED 1/2 ( AES-EBU Output modules installed in slots 1/2 and 3/4 ): 

 
 

CH 1 (ADAT ODI-A IN) 

⇒

⇒

⇒

⇒

 

Slot 1/2 (Dual AES-EBU Mono) 

 

CH 2 (ADAT ODI-A IN) 

⇒

⇒

⇒

⇒

 

Slot 3/4 (Dual AES-EBU Mono) 

 

CH 1/2 (ADAT ODI-A IN) 

⇒

⇒

⇒

⇒

 

Slot 5/6 (DA24 96K Stereo) 

 

CH 3/4 (ADAT ODI-A IN) 

⇒

⇒

⇒

⇒

 

Slot 7/8 (DA24 96K Stereo 

 
 

b)  Dual AES-EBU MIXED 3/4 ( AES-EBU Output modules installed in slots 5/6 and 7/8 ): 

 
 

CH 1/2 (ADAT ODI-A IN) 

⇒

⇒

⇒

⇒

 

Slot 1/2 (DA24 96K Stereo) 

 

CH 3/4 (ADAT ODI-A IN) 

⇒

⇒

⇒

⇒

 

Slot 3/4 (DA24 96K Stereo) 

 

CH 3 (ADAT ODI-A IN) 

⇒

⇒

⇒

⇒

 

Slot 5/6 (Dual AES-EBU Mono) 

 

CH 4 (ADAT ODI-A IN) 

⇒

⇒

⇒

⇒

 

Slot 7/8 (Dual AES-EBU Mono) 

 
 

c)  Dual AES-EBU FULL ( AES-EBU output modules installed in slots 1/2, 3/4, 5/6 and 7/8 ) 

 
 

CH 1 (ADAT ODI-A IN) 

⇒

⇒

⇒

⇒

 

Slot 1/2 (Dual AES-EBU Mono) 

 

CH 2 (ADAT ODI-A IN) 

⇒

⇒

⇒

⇒

 

Slot 3/4 (Dual AES-EBU Mono) 

 

CH 3 (ADAT ODI-A IN) 

⇒

⇒

⇒

⇒

 

Slot 5/6 (Dual AES-EBU Mono) 

 

CH 4 (ADAT ODI-A IN) 

⇒

⇒

⇒

⇒

 

Slot 7/8 (Dual AES-EBU Mono) 

 

Содержание Sphynx

Страница 1: ...Sphynx Modular High Resolution Audio Interface User Manual Version DOC 1 7 April 2000 2000 Merging Technologies Inc...

Страница 2: ......

Страница 3: ...L FRONT PANEL CONTROLS 4 WARNINGS DISPLAYED 5 Synchronization LEDs blinking 5 Sample Rate LEDs blinking 5 Input Level Meters LEDs blinking 5 Monitor OUT LEDs blinking 5 CHAPTER 3 THE BACK PANEL 6 AUDI...

Страница 4: ...APTER 7 SETTINGS MENU 18 1 ANALOG I O LEVEL 19 Using the Trim Pots 19 2 ANALOG INPUT DITHER 19 3 AES EBU INPUT SRC 19 Using the Sample Rate Conversion 19 4 AES EBU I O DUAL MODE 20 5 ODI B OUT ROUTING...

Страница 5: ...d used in accordance with the instructions contained in this manual may cause harmful interference to radio and television communications However there is no guarantee that interference will not occur...

Страница 6: ...the product failure In this limited warranty the customer must upon Merging Technologies Inc request return the product to the place of purchase or other local designation for the necessary repairs t...

Страница 7: ...any other electromagnetic interference Rugged internal power supply This unit accepts both 110 and 220 voltages for worldwide use Fully tested for CE compliance for guaranteed safety and stability All...

Страница 8: ...to the optical input ADAT If no valid sync signal is present at the optical input when the ODI mode is selected the ODI LED will flash Once a valid sync signal has been detected at the optical input...

Страница 9: ...phynx is now locked and synchronized to the incoming S PDIF signal Sample Rate Selection and Status x4 x2 x1 32 44 1 48 SAMPLE RATE KHz SELECT Sphynx supports a wide range of sample rates The desired...

Страница 10: ...the Sphynx is required see Chapter 7 for details on how to calibrate the analog I O level Note dB FS are referred to Digital Full Scale Monitoring Selection PHONES VOLUME 5 6 5 6 3 4 3 4 7 8 7 8 1 2...

Страница 11: ...nking The Input Level Meters OVL LEDs blink whith the corresponding LVL LEDs turned off on some channels when the input module of those channels has a problem Here is the cause of this warning for eac...

Страница 12: ...format is determined by the type of input modules installed in the Sphynx Currently the Sphynx supports the following input modules 24 bit analog line inputs up to 48 kHz 24 bit analog line inputs up...

Страница 13: ...s to the corresponding output modules See Chapter 5 on how to make audio connections Analog Outputs When using analog output modules the corresponding output XLR connectors are adjustable balanced 4 d...

Страница 14: ...techniques Output This BNC connector outputs a Wordclock signal based on the current Sphynx sampling rate This signal is always present See Chapter 7 on how to configure the Wordclock output S PDIF I...

Страница 15: ...n x1 SR mode the signal routed to this output is selectable via the Settings Menu See Chapter 7 on how to set the ODI B OUT routing Auxiliary Modules AUX 1 AUX 2 The AUX 1 and AUX 2 modules are reserv...

Страница 16: ...e I O module to fit properly in the desired slot Insert the module firmly into place Please note that the output modules are physically longer than the input modules This reduces the chance of the out...

Страница 17: ...Module 1 Analog Input Module 2 Analog Input Module 3 Analog Input Module 4 Note that the rear panel labeling of the analog XLR inputs is MIC LINE Currently the Sphynx only accepts line analog inputs C...

Страница 18: ...3 4 AES EBU 5 6 AES EBU 7 8 AES EBU Input Module 1 AES EBU Input Module 2 AES EBU Input Module 3 AES EBU Input Module 4 Connecting AES EBU Outputs Any professional level balanced digital AES EBU audio...

Страница 19: ...or Monitoring on Headphones Analog Audio Source ODI B I O ADAT VIDEO Sync This example uses the following Monitoring is done through the Digital Betacam analog outputs the Sphynx headphones output or...

Страница 20: ...ALOG INPUTS ANALOG OUTPUTS SONY Analog Betacam Video Deck This example uses the following All monitoring is done by the front panel Monitoring selection and output The Sphynx contains 2 analog input m...

Страница 21: ...odular Audio Interface AES EBU INPUTS ODI A I O ADAT AES EBU OUTPUTS ANALOG OUTPUTS ANALOG INPUTS Monitor Outputs Monitoring on Headphones ODI B I O ADAT VIDEO Sync 4 Channels Digital IN 4 Channels An...

Страница 22: ...ANALOG OUTPUTS ANALOG INPUTS Monitor Outputs Monitoring on Headphones ODI B I O ADAT VIDEO Sync 4 Channels Digital IN 4 Channels Analog IN 4 Channels Analog OUT 4 Channels Digital OUT This example use...

Страница 23: ...ted into an output slot or if an output module is inserted into an input slot In this case switch the Sphynx OFF unplug the power cable open the Sphynx and check the placement of all installed modules...

Страница 24: ...VL leds Once you have set all parameters as you want press once the MONITOR SELECT button to exit the Settings Menu The new configuration is stored and applied immediately The different parameters are...

Страница 25: ...ar a noise shaping filter is used to minimize the noise level where the human ear is most sensitive 500 to 4000 Hz and augment it in where the human ear is less sensitive One side effect of such a pro...

Страница 26: ...this mode 2 When OUTPUT Dual AES EBU mode is selected and when the x2 SR mode is selected three different Dual mode configurations can exist depending on the output modules present in the Sphynx a Dua...

Страница 27: ...AES EBU to DA AES EBU to AES EBU Sample Rate Conversion etc In the STAND ALONE mode ADAT outputs are routed internally to ADAT inputs The 8 input signals still are conveyed to ODI outputs in ADAT form...

Страница 28: ...ifferential 24 dBu Custom Min Differential 4 dBu Custom Max Differential 25 dBu Input Impedance Differential 20 KOhms Common Mode Rejection 40 dB Interchannel Isolation Crosstalk 1kHz 110 dB Dynamic R...

Страница 29: ...96 kHz Dynamic Range A weighted 117 dB A Unweighted 111 dB THD N 1 KHz 0 dBFS 101 dB 1 KHz 20 dBFS 90 dB Frequency Response 20 Hz 40 KHz 0 1 dB 96kHz Analog Output Module Parameter Conditions Value Un...

Страница 30: ...Parameter Conditions Value Unit Resolution 24 Bit Max Sampling Rate Without SRC 96 KHz Output Impedance Differential 110 Ohms Note All specifications subject to change without notice Appendix 2 Flow C...

Страница 31: ...IN 1 2 S PDIF IN MODULE OUT 1 2 MODULE OUT 3 4 MODULE OUT 5 6 MODULE OUT 7 8 S PDIF OUT ODI B OUT CUSTOM ODI B IN S PDIF Sphynx in x2 SR mode Audio Flow Chart ADAT CH 1 2 ADAT CH 3 4 ADAT CH 5 6 ADAT...

Страница 32: ...lly while removing the Flash ROM chip Take the new Flash ROM chip and plug it into the socket by hand in place of the old one Take care to ensure that the firmware chip is inserted in the same orienta...

Страница 33: ...odules and 4 stereo AES EBU output modules Analog line signals on inputs 1 and 2 are converted to a digital AES EBU signal on output 1 2 Analog line signals on inputs 3 and 4 are converted to a digita...

Страница 34: ...d one Onouris LDS at each end This system allows a bi directional link of up to 1000 meters Why AutoDetect SR mode doesn t work on incoming AES EBU signals in Video sync mode The AutoDetect SR mode do...

Страница 35: ...l optical digital interface It is a proprietary standard which is used in the family of Alesis ADAT digital multitrack recorders and many other professional audio devices such as digital mixing desks...

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