no sound on ALSA. MediaPlayback Warning OpenCubeb failed to init cubeb
for audio playback on linux firefox needs pulseaudio
without pulseaudio firefox prints the cryptic warnings
[Child 4063, MediaPlayback #2] WARNING: 7f1413fe37c0 OpenCubeb() failed to init cubeb: file /var/tmp/build/firefox-f3a77068c185/dom/media/AudioStream.cpp, line 388
[Child 4063, MediaPlayback #2] WARNING: Decoder=7f141d749800 [OnMediaSinkAudioError]: file /var/tmp/build/firefox-f3a77068c185/dom/media/MediaDecoderStateMachine.cpp, line 3750i would need to re-compile firefox with --enable-alsa --disable-pulseaudio in the mozconfig for native alsa support
or with --enable-jack --disable-pulseaudio for native jackaudio support
why i prefer alsa over pulseaudio? cos alsa gives lower latency and better audio video sync
pulseaudio is just too big for me
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workaround: apulse
if you dont want to re-compile firefox or if firefox completely drops alsa support
then use apulse from https://github.com/i-rinat/apulse as pulseaudio emulator on alsa its a partial implementation of the pulseaudio API which runs faster than the whole PA server
apulse needs dmix see /usr/share/apulse/asoundrc.sample and edit your /etc/asound.conf
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to make torbrowser play audio to alsa
in your ~/.local/share/torbrowser/tbb//tor-browser/Browser/firefox
replace
exec "basedir/firefox.real" "@"
with
exec apulse "basedir/firefox.real" "@"
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more on: firefox vs alsa https://www.omgubuntu.co.uk/2017/03/firefox-52-no-sound-pulseaudio-alsa-linux https://github.com/webcompat/web-bugs/issues/14690
Trac:
Username: needle8420