Hello,

now a different (second) setup: MUX -> ASRC -> 2xOpus

Because the complete chain did lead to distortion and noise at the first trial, I tried to get the MUX -> Opus working. It works! Stereo and dual mono! But: If I set the OSR-Pin of the Opus "low" - according to the datasheet this means maxiumum oversampling (4x) in the DAC. If I feed the combo with 44.1 kHz spdif, nothing happens, absolute silence. If I set OSR to "medium" or "high", I hear music without any errors or noise.

If I understand the datasheet of the cs8416 correctly, it should be the other way round. As far as I see, the cs8416 does not any sample rate conversion. So 44.1kHz in, 44.1 kHz out. But Opus tells me a different story.

If I don't get the correct sampling rates, there is no chance of configurimg the ASRC correctly, as far as I see.

So does the cs8416 do any upsampling?
Did I get anything wrong?

Thanks in advance

Flo

Wow, that was quick! Thank you Russ.

Just tested it again, no sound from the Opus with OSR "low" - "medium and "high" work.

Strange thing because my cpd puts out 44.1 for shure.



Regards

Flo

Thank you glt,

this way I know that I am still cxapable of reading datasheets, at least :d/

I think that's the problem, I set it to 128*fs like recommended in the manual without thinking about it, was only thinking about the sampling frequency. Will check it when I'm back at home.

I think that this could be related to the problem I had with the asrc.

Regards

Flo

I'm glad you sorted it out.
Even though I'm using the BII, I'm still a fan of OPUS/WM8741 :-)