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Playback issue with Apogee Duet 2

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Matt:
Thanks for the log.  However, I need to see playback starting from a stopped state.  Could you try again and not reset the log (or make sure you stop with the stop button, then play after resetting).

Thanks.

rinoatomy:
Hey, Matt,

I just emailed you again with what I think is the right thing. Let me know, please.

Thanks

Matt:
Thanks for the log.

It shows that the device has a simple buffer arrangement: a single stream of four channels.  It defaults to 512 blocks as the hardware buffer size.

I think it would be good to try simplifying what the device sees from us, by trying two different things:

1) Use DSP Studio > Output Format to _always_ output a single sample rate.  It's possible hardware sample rate switches are leading to the problem.  If we remove this possibility, we might learn something.

2) Use DSP Studio > Output Format > Channels to output 4 channel (even if you don't have anything connected to the other two channels).  We should be leaving the two other channels silenced in two channel mode anyway, but it's worth testing.

Thanks again for all your help.

rinoatomy:
I do always output with only one sample rate.

I'm going to try the channel options, beginning right now.

Thank you.

bplexico:
I previously used a Apogee Duet with JRiver, I know you are using an Apogee Duet 2. I used the default of hardware default for buffer size which eliminated problems I had when switching sample rates.

For output formats I had it set based on the Apogee Duet handling up to 24/96. Thus 44.1 files I set for playback at 44.1, 88.2 at 88.2, 96 at 96, and then downsampling 192k files to 96k. It worked flawlessly for me, I know this does not solve your problem, but I think it must be a configuration issue.  Are you using a dedicated playback computer or also running other programs at the same time? What happens if you only run JRiver and no other programs? How much memory is in your Mac? And lastly have you tried playback with any other music player like iTunes or Audirvana?

Barr

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