20 Aug
2021
20 Aug
'21
3:17 p.m.
Hi,
I recently noticed that, when watching videos with Firefox in a JACK-only environment
(no pulseaudio, usually), video and audio slowly but noticeably run out of sync over the
course of 20min or so. Not sure when it started, but it didn't use to be like that
before.
I'm on Arch, FF compiled with JACK support (not using alsa2jack plugin).
I'm running JACK at 44.1khz, blocksize 512.
With pulseaudio, there's no such issues ...
Anybody experiencing similar issues ?
Best,
Niklas
20 Aug
20 Aug
4:37 p.m.
On Fri, August 20, 2021 6:17 am, nik(a)parkellipsen.de wrote:
I recently notic ed that, when watching videos with
Firefox in a JACK-only
environment ...video and audio slowly but noticeably run out of
sync over the course of 20min or so.
...
I'm running JACK at 44.1khz, blocksize 512.
Video usually has the associate audio track at 48kHz. Can Firefox handle
the audio system and file sample rate being different?
--
Chris Caudle
4:45 p.m.
Le 2021-08-20 à 08 h 36, Chris Caudle a écrit :
On Fri, August 20, 2021 6:17 am, nik(a)parkellipsen.de
wrote:
Is there support for JACK in
Firefox?
This returns nothing on my system:
ldd /usr/lib/firefox/*.so | grep -i jack
What connects audio from Firefox to JACK?
Marc
I recently notic ed that, when watching videos
with Firefox in a JACK-only
environment ...video and audio slowly but noticeably run out of
sync over the course of 20min or so.
...
I'm running JACK at 44.1khz, blocksize 512.
Video usually has the associate audio track at 48kHz. Can Firefox handle
the audio system and file sample rate being different?
5:06 p.m.
Le 2021-08-20 à 08 h 44, Marc Lavallée a écrit :
Is there support for JACK in Firefox?
This returns nothing on my system:
ldd /usr/lib/firefox/*.so | grep -i jack
Auto-answering: jack support can be
compiled in via the libcubeb backend.
If it's not compiled in by default (in some distributions), could it be that
it's not a reliable method to stream audio (from FF to the audio hardware)?
Marc
8:39 p.m.
Well, it has been compiled in in Arch for as long as I can think,
but i never noticed the problems until quite recently ... like, 2 months
or so ?
Marc Lavallée wrote on 20.08.2021 15:05 (GMT +02:00):
Le 2021-08-20 à 08 h 44, Marc Lavallée a écrit :
Is there support for JACK in Firefox?
This returns nothing on my system:
ldd /usr/lib/firefox/*.so | grep -i jack
Auto-answering: jack support can be
compiled in via the libcubeb backend.
If it's not compiled in by default (in some distributions), could it be
that
it's not a reliable method to stream audio (from FF to the audio
hardware)?
Marc
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4 comments
3 participants
participants (3)
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Chris Caudle -
Marc Lavallée -
nik＠parkellipsen.de