[alsa-devel] arecord: buffer-size dependency on period-size and other params

[Ricard Wanderlof]

On Wed, 15 Jan 2020, Rajwa, Marcin wrote:

> level). So to be specific I issue such command: arecod -Dplughw:0,8 -r
> 16000 -c 2 -f S24_LE --buffer_size 1280000 tmp.wav -vvv. The arecord
> response for this is buffer size of 31992 frames, 255936 bytes. Now let
> me also tell the buffer size of 1280000 bytes is the maximum buffer size
> our driver allows, likewise max period is 268800 bytes. Now if inside

Not an answer to your problem, but just a note: according to arecord -h, 
the --buffer_size parameter is in frames (in your case, with S24_LE and 2 
channels, the frame size is 4*2 = 8 bytes), not bytes.

/Ricard
-- 
Ricard Wolf Wanderlof                           ricardw(at)axis.com
Axis Communications AB, Lund, Sweden            www.axis.com
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