[AudioI] underrun error playing 8ch WAV

[Matt Flax]

One thing you can do is increase the buffer size. As you're playing back 
static wav files, you can make it large, like 200ms, which at 44100 Hz 
is 8820 samples per channel.  I am not sure if that is per channel, if 
it is per channel, then multiply that by 8.

aplay -h gives you the options. The one you are after is /--buffer-size=/

On 1/8/22 14:00, z f via People wrote:
> hi there, this is my first post to the email list, not sure i'm doing 
> this right..
>
> i'm trying to play an 8ch wav file in a loop, 16bit 44.1, and it 
> usually gives me an "underrun" error while playing the file at least 
> once per loop.  this translates to a minor blip for between 30ms and 
> 800ms where there is a jump in the audio.  the wav file continues to 
> loop over and over, but usually one or two underrun blips per loop.
>
> i'm achieving the loop by doing this in terminal:
>
> while [ 1 ] ; do aplay -D hw:audioinjectoroc 
> /home/pi/Downloads/herefull8.wav ; done
>
> if anyone has any ideas i could try, let me know!  i'm using a Sandisk 
> ultra plus U1 microsd card on a raspberry pi 3B.
>
> im brand new to rpi, everything i've done so far has been 
> copying/pasting stuff i see on the forums, or something someone has 
> advised me to do, i dont really understand this end of it, but all i 
> need to do with the raspberry pi is simply loop this file and i should 
> be all set. i feel like i'm very close!
>
> thanks,
> Zak
>
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