Ubuntu: getting a string instead of samples in data event.

[jmbldwn]

My app works perfectly on my mac. When I run it on my ubuntu machine (my actual target) the 'data' event returns strings instead of samples.

I've tried it with a couple of different USB microphones. Here's an example of a message that is coming through the 'data' callback:

re/alsa/alsa.confommon:CARD=0,DEVICE=3,CTLINDEX=0,AES0=4,AES1=130,AES2=0,AES3=2m

What's causing this? I am able to record on this PC using arecord, so it appears ALSA is working in the system.

[jmbldwn]

Update: appears to be related to asking for a sample format that the hardware doesn't support. Not sure why this isn't an error instead of passing messages through the data event.

[scriptorian]

Sorry to hear that this wasn't straightforward. I have had a quick review of the code in this area and I can't see anything obvious that would cause what I guess is an error string to be passed to the data event. If you get any more clues please let us know!

[jmbldwn]

Maybe more data on the environment might help:
Ubuntu 18.04 64-bit server running on a celeron x86 CPU.
There is no native audio hardware on this device; I'm using USB microphones.
I installed alsa using apt. Appears to be version 1.1.3.

What other info would be helpful?

[scriptorian]

I have just pushed a big update to naudiodon. It would be good to know if the new implementation still has this problem.