[alsa-devel] Noise in begnning of alsa application

[Takashi Iwai]

On Mon, 21 Jan 2019 18:46:44 +0100,
Chakravarthi Pradeep wrote:
> 
> On Wed, Jan 16, 2019 at 5:07 PM Chakravarthi Pradeep <doubleq7 at gmail.com> wrote:
> >
> > I have ALSA driver for capture device which works fine with VLC. when
> > I try to capture and render using own application having some issues.
> > When I start play, it has some noise in beginning and audio is
> > discontinuous in between. Discontinuous means, some audio frame are
> > getting dropped in between. cut cut sound for sine wave. I have tried
> > snd_pcm_drop and snd_pcm_drain but no use. Kindly suggest how to
> > remove the starting noise in ALSA.
> >
> > For audio rendering i'm using below application.
> > I'm sharing reference render application which my own application is
> > built.
> 
> > https://github.com/bear24rw/alsa-utils/blob/master/aplay/aplay.c

Such behavior is strongly depending on the hardware and the driver
code, so it's almost impossible to debug without the detailed hardware
and kernel information...


thanks,

Takashi