Please verify if CoreAudio works with sample rates different from 44.1k

Question

Please verify if CoreAudio works with sample rates different from 44.1k

baadc0de opened this issue 8 years ago · 2 comments

I am running JACK1 on macOS Sierra. When jackd is running with a samplerate that is not 44.1kHz, nothing is captured on the inputs. The system.capture_* ports are always returning bit-perfect silence.

jackd -dcoreaudio -r192000 -p256

The funny thing is that outputs (on the same device) work at any supported sample rate. The metering on the sound card shows external signal and I can see this signal with other CoreAudio applications, such as REAPER.

I would like to find out if the issue is my soundcard's drivers (Avid HD Native) or the CoreAudio backend of JACK1. Could someone verify with their soundcard?

Best regards

Answer 1 · 2017-05-03T15:14:52.000Z

Side note: it seems that if I try the same jackd command multiple times repeatedly, it eventually registers the inputs. So far it's been a pretty consistent one out of three attempts.

Answer 2 · 2019-02-13T06:24:52.000Z

I have also experienced this issue on macOS 10.13.6, jackd built using homebrew. In my case audio input works very rarely, once in maybe 20 tries, regardless of sample rate.
I can't seem to also correlate it with running using internal soundcard of macbook pro (using aggregate device), vs. an external Behringer UMC404HD, both seem to fail similarly often.