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Tascam DA-78HR - DTRS - Word in / SPDIF
Thu, 03/29/2007 - 05:00
I want to use my Tascam DAT DA-78HR in slave mode with an extern word clock, the word-in-signal through a BNC connection.
In this case unfortunately I can´t use the S/PDIF out of the DA-78HR to connect it to a sound card, because this signal gets the worst cracks.
S/PDIF out seems only to work when the DA-78HR is the master unit.
But why? Could anybody help me?
Thu, 03/29/2007 - 10:13#1
Is the external word clock you're using to clock the DA-78HR coming from the sound card? If not, you'll get clocking errors because the sound card is not running off of the same clock as the DA-78HR.
If the external clock is coming from a third device, try sending it to both the DA-78HR and the sound card. If the clock generator only has one output, try a BNC "T" connector.
If you don't have the necessary word in/out jacks, you can also try clocking off of the DA-78HR's coaxial (S/PDIF) jack.
Also, be sure all devices are set to the same sample rate.
Thu, 03/29/2007 - 12:06#3
Ah, yes. It sounds like you have everything wired correctly. It should work in both directions. I'm stumped. If it's possible to call the US, try Tascam tech support, 323-726-0303. They are in Los Angeles CA, USA.
Or the European offices are listed here:
Mon, 04/23/2007 - 10:32#5
It's worth a shot, as the 50 ohm terminator and t-jack are both inexpensive. (Remember to mark your 50 ohm terminator so it doesn't get mixed up with any 75 ohm terminators.)
However in my experience, word clock termination problems are subtle. Your crackling issue might be a larger problem.
Please do report back on your results, this is a good mystery.