dynamo_rpi
Posts: 3
Joined: Mon Jul 15, 2013 11:28 am

USB audio issues

Mon Jul 15, 2013 5:06 pm

Hi,

When I connect a USB soundcard to my Raspberry PI and run alsaloop (a utility to play back the sound that is currently being received by the soundcard) the sound is very choppy (whether I play it back through HDMI or the same USB card). If I simply record the input with arecord and play it back later, there is no choppiness. It seems RPi can't cope with both audio input and output simultaneously. Is there a way to fix this?

Thanks.

christopher.wilkes
Posts: 3
Joined: Thu Aug 15, 2013 4:24 am

Re: USB audio issues

Thu Aug 15, 2013 4:45 am

I have had issues with different sample rates and resolved it by hard setting all programs to 48000.
Try the following, it works for me. (According to my notes)

Code: Select all

arecord -D hw:1,0 -c 2 -r 48000 -f dat | aplay -f dat
Not familiar with aslaloop, will give it a go tomorrow.

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