[alsa-devel] snd-usb-audio syncronisation problem

Clemens Ladisch clemens at ladisch.de
Tue Feb 26 09:14:47 CET 2008

Adrian Stancu wrote:
> deathu at vader:~/Desktop$ sox testtone96.wav -r 192000 testtone192.wav
> deathu at vader:~/Desktop$ aplay -D hw:1 testtone192.wav
> Playing WAVE 'testtone192.wav' : Signed 16 bit Little Endian, Rate 192000 Hz, Mono
> aplay: set_params:918: Sample format non available

The device doesn't support mono.
Try "sox testtone96.wav -r 192000 -c 2 testtone192.wav".

> I receive totally damaged audio (wrong frequency, lots of artifacts)

What frequency?  What is shown /proc/asound/card1/stream0 while playing
this file?  Does something similar happen with a four-channel 96 kHz
file? ("sox testtone96.wav -c 4 testtone4.wav")


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