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Mixed input sources - Digital mess!
I'm trying to record multiple instruments/voices through different pre amps to my MOTU 828mkII inputs:
1. One Focusrite Liquid Channel - AES output which I can connect to the SPDIF input, using a converted cable.
2. One Focusrite Voicemaster Pro - Balanced analogue output, connected to balanced analogue line input. And
3. Eight Focusrite OctoPre le - ADAT output, connected to ADAT in.
Recording from any of these sources individually and setting my MAC's Audio/Midi Clock Source to either:
3. ADAT Optical
...gives me perfect results - However, trying to record them all using ANY of these sources won't give me recordings without digital spikes.
So, what do I do?
I feel that the secret is hidden in Wordclock; I have connected the two digital units to the 828 using Wordclock but I can't get it working. This is beating me!!!!
- Down in the Cellar
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The solution is to make one device the clock master, and the others must be slaves. I would suggest making the octopre the master, so set that to run on it's internal clock and output adat to the motu which should be set to clock from that adat input as a slave.
Next, run a word clock cable from the octopre clock out to the liquid channel clock in. Set the LC to clock from the word clock input. Connect the aes out from the LC to the motu.
It should now work...
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