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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Pulseaudio delays sound compared to activity on screen when using sound via HDMI"
href="https://bugs.freedesktop.org/show_bug.cgi?id=104501">104501</a>
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<th>Summary</th>
<td>Pulseaudio delays sound compared to activity on screen when using sound via HDMI
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<th>Product</th>
<td>PulseAudio
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>alsa
</td>
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<th>Assignee</th>
<td>pulseaudio-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>freek@opensuse.org
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<th>QA Contact</th>
<td>pulseaudio-bugs@lists.freedesktop.org
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<th>CC</th>
<td>lennart@poettering.net
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<p>
<div>
<pre>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.</pre>
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</p>
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