[pulseaudio-tickets] [Bug 104501] New: Pulseaudio delays sound compared to activity on screen when using sound via HDMI

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=104501

            Bug ID: 104501
           Summary: Pulseaudio delays sound compared to activity on screen
                    when using sound via HDMI
           Product: PulseAudio
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: alsa
          Assignee: pulseaudio-bugs at lists.freedesktop.org
          Reporter: freek at opensuse.org
        QA Contact: pulseaudio-bugs at lists.freedesktop.org
                CC: lennart at poettering.net

I use a HDMI connection to my monitor with speakers. When playing a score in
Musescore the sound is delayed by about 1 second compared to the the activity
on the screen. The note in the score which is played is highlighted.
When changing the sound device in the tab "I/O" in Musescore from PulseAudio to
ALSA audio, sound and picture are in sync. This suggests that pulseaudio is
delaying the sound. "I/O" is reached by selecting Edit->Preferences...
I noticed earlier also this type of delay when playing a video in Firefox,
however currently this is no longer the case. It was most apparent when a
person is speaking in the video.
Previously I did not use HDMI to produce sound, but an old fashioned sound
device, which AFAIR also went through PulseAudio, but I did not see/hear this
delay.

-- 
You are receiving this mail because:
You are the assignee for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/pulseaudio-bugs/attachments/20180105/fc5d9020/attachment.html>