[pulseaudio-discuss] First file play through Pulse audio

Lennart Poettering lennart at poettering.net
Mon Jun 29 19:11:49 PDT 2009


On Sat, 20.06.09 10:10, Harsha, Priya (priya.harsha at intel.com) wrote:

> No this is not on USB. I am writing a new ALSA driver for a new
> hardware and when I play through pulse audio, first time after
> reboot, I get a hush noise (empty buffers?).
> 
> Can you please give some clue if pulse audio is sending it or is
> there anything else you think is going wrong. This happens only for
> the first file after reboot and not for subsequent files.

This really sounds as if ALSA/your driver wouldn't fully empty the hw
playback buffer when we open the device. Maybe some undefined data is
left in the buffers which then causes this sound to be played?

PA simply plays silence if there is nothing else to play.

Lennart

-- 
Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net
http://0pointer.net/lennart/           GnuPG 0x1A015CC4



More information about the pulseaudio-discuss mailing list