Re: Set fragment size for USB sound card

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On 4/13/07, Jason Heeris <heerij01@xxxxxxxxxxxxxxxxxx> wrote:
 > But to answer your question, if I try:
>
> --
> $ alsaplayer -i text -o alsa -d hw:2 -f
> 4096 /usr/share/sounds/generic.wav
> Unable to install hw params:
> ACCESS:  RW_INTERLEAVED
> FORMAT:  S16_LE
> SUBFORMAT:  STD
> SAMPLE_BITS: 16
> FRAME_BITS: 32
> CHANNELS: 2
> RATE: 44100
> PERIOD_TIME: (23219 23220)
> PERIOD_SIZE: 1024
> PERIOD_BYTES: 4096
> PERIODS: 8
> BUFFER_TIME: (185759 185760)
> BUFFER_SIZE: 8192
> BUFFER_BYTES: 32768
> TICK_TIME: 1000
> failed to configure output device...trying OSS

That's an alsaplayer bug, it seems to assume that ALSA can handle any
period size it asks for then falls back to OSS if it fails.  The app
should try a different period size or ask ALSA for a valid one.

Lee

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