[Bug 579300] Re: Please disable CONFIG_SOUND_OSS* and CONFIG_SND_*OSS*

Christophe Van Reusel 579300 at bugs.launchpad.net
Tue Nov 2 13:55:48 UTC 2010


Hello pablo,

for gnome radio it's maybe a solution. But even then it's to processor
intensif. For tv card itself it's a pain in the ass since there is a
delay between image and sound. Off course i do not route out the sound
to /dev/dsp in tv time. the only control we used was the /dev/mixer emu
to untoggle the specified alsa mixer channel and change volume. My tv
time card is connected to CD in from motherboard. Some connect it to
line in by absence from other inputs. Then we don't have delay between
image and sound and are not using (spoiling) valuable processor time.
Sound can also be untoggled using alsa mixer. Or even better gnome-
alsamixer.

Another option off course is the use of loopback into pulse, But since
pulse does not support my sound card how it should be and there is no
way to solve that. I do it straight trough alsa. On top of it you can't
mixed several loopback inputs togheter with pulse Yes Pulse is very very
far from complete.

Note: most new software use direct input into alsa . Tvtime and gnome
radio are not under developpemnt anymore. For tv time there is a patch
made to use direct hw:0:Line or CD instead of passing trough /dev/mixer
. But I still did not found this patched version compiled for amd64 or
the latest modified source to compile this myself. It seems to be called
tvtime version 1.0.2-8sr... in ubuntu there is still version 1.0.2-6.

gr christophe

here just attached copy of pulse setup for loopback located into
/etc/pulse

note the load-module module-loopback at the end of the file.


** Attachment added: "default.pa"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/579300/+attachment/1720671/+files/default.pa

-- 
Please disable CONFIG_SOUND_OSS* and CONFIG_SND_*OSS*
https://bugs.launchpad.net/bugs/579300
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