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Old 07-10-2013, 01:17 PM
miezurecords miezurecords is offline
Join Date: Aug 2011
Location: Cluj-Napoca, Romania
Posts: 8
Default Avid Fast Track C400 SPDIF loop not working

Hey guys,

I just bought a C400 interface and I wanted to set it up like so:
IN 1: Mic 1
IN 2: Mic 2
IN 3-4: SPDIF <<< coax OUTPUT from a TC HELICON VOICELIVE 2 processor

OUT 1-2: Monitor Pair 1
OUT 3-4: Monitor Pair 2
OUT 5-6: SPDIF >>> coax INTO the TC HELICON VOICELIVE 2 processor

I'm using ProTools Standard 9.0.6 on Mac OS X 10.8.3.

Here's how I have stuff setup in my DAW:
Screen Shot 2013-07-10 at 9.58.01 PM.jpg

Screen Shot 2013-07-10 at 9.58.17 PM.png

Screen Shot 2013-07-10 at 9.58.26 PM.png

Here's the setup on my TC H VL2:
20130710_220132.jpg - I've rocked the DIG OUT TRIM all the way from -12 to +12, so that's not the problem.

What I'm doing:
Arming Audio 1 and Audio 2 for recording and clicking rec.

Audio 1 should have the Dry sound
Audio 2 should have the Wet (TC H VL2 processed) sound
Same applies for inserting a clean voice track on Audio 1, record enabling Audio 2 in order to get the Wet (TC H VL2 processed) sound.

Actual situation:
Screen Shot 2013-07-10 at 10.07.30 PM.png
Audio 1 sends to the TC via OUT 5-6 (SPDIF) and I can hear that signal is
received and processed by the TC, because I've got a pair of M50s hooked up @ the analogue HP output of the processor.

And here's what the TC Helicon VoiceLive 2 User manual specifies:
"SPDIF digital output is always available regardless of
DIGITAL IN or OUT settings."

But, as you can see, there's nothing coming into the SPDIF IN of the audio interface... I can't pinpoint the problem. Do you have any suggestions on this one?

TC H VL2 is using firmware 1.5.05
Avid C400 is using Package 1.1.2, firmware 1.0.1

Do you have any suggestions on how to check which of the SPDIFs is not working and/or what might be the problem here?

MacBook Pro 13 (mid-2009)
Core 2 Duo 2.26GHz, 8GB DDR3 Corsair
Kingston V300 240GB SSD running 10.8.2
Hackintosh (2011 SandyBridge TonyMac build)
Core i7, 3.4GHz quad, 16GB DDR3, Kingston V200 128GB SSD running 10.8.2, Seagate 1TB/7200rpm/64MB cache, AMD Radeon 6870 HD
Apogee Duet, Yamaha HS80m, Audio Technica ATH-M50
ProTools 9, Logic Pro 9

Last edited by miezurecords; 07-10-2013 at 01:20 PM. Reason: forgot a few details...
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