[pulseaudio-discuss] How to debug choppy audio in Totem & Mythtv

[Colin Guthrie]

'Twas brillig, and steve at 26/01/10 18:01 did gyre and gimble:
> This is a FC12 box with Intel mobo that has Realtek ALC889A sound
> hardware.  Mythtv is using ALSA:front for the output.  I don’t know
> about Totem because I don’t see any way to configure the sound output. 

If MythTV is using ALSA:front then it's not using PA. MythTV also has
code that automatically suspends PA when MythTV runs. Unless Fedora have
patched MythTV to not do that (as I have in Mandriva) then you wont get
to use MythTV with pulse.

FWIW, in my testing of MythTV + PA I didn't experience any of the issues
the upstream guys were worrying about regarding sync etc.


With regards Totem, it is mostly likely using Gstreamer for audio
processing which is mostly likely using it's PA backend. You can set
these preferences in gstreamer-properties but it's probably set to
"Auto" (which means pulse).

I appreciate this doesn't help you debug, but if you play with the
gst-launch command line (google around for examples using "playbin" or
"playbin2") you may be able to confirm things are working.

Always make sure the relevant stream appears in a PA per-app mixer like
pavucontrol when starting off (i.e. to confirm the app in question is
playing via pulse).

Col

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Colin Guthrie
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http://colin.guthr.ie/

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