[pulseaudio-discuss] Crash/Underruns observed randomly when system alert is mixed with audio stream in Pulse Audio

Arun Raghavan arun.raghavan at collabora.co.uk
Wed Feb 10 11:41:05 PST 2010


Hello,

On Wed, 2010-02-10 at 20:28 +0530, Lakshmi N V wrote:
> Hi,
> I'm using the Pulse Audio v0.9.21 with Moblin 2.1 OS on an embedded
> system.
> I've observed that when a audio stream is in progress through Pulse
> Audio and a system alert is generated through libcanberra-gtk-play,
> the system alert is mixed successfully for the first time, but in the
> second iteration, Pulse Audio either crashes or goes into continuous
> underruns.
> Similar issue is observed, when system alerts are generated
> continuously using libcanberra.
> As I understand, the underruns could be occuring because of latency
> added by software mixing in Pulse Audio. Is this a possibility?
> Has this behaviour been observed on any other platform? Are there any
> known issues with playback of short streams like alerts through Pulse
> Audio?

Doesn't happen on my desktop with PA 0.9.21.1 and libcanberra 0.22.

-- Arun




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