1737757 - [Intermittent] [Wayland] Distorted audio on several audio file types

Status: RESOLVED WORKSFORME

(Core :: Audio/Video: Playback, defect)

Description

[Petruta Horea [:phorea], Desktop QA]

Attachment: playback recorder

Affected versions

• Nightly 95.0a1 2021-10-25
• Firefox 94 beta 9
• Firefox 93

Affected platforms

• Ubuntu 21.04 64-bit Wayland

Steps to reproduce

1. Open several audio files and check that all files are opened and played back correctly:
   http://www.hochmuth.com/mp3/Vivaldi_Sonata_eminor_.mp3 - MP3
   http://www.metadecks.org/software/sweep/audio/demos/beats1.ogg - OGG
   http://tinyurl.com/zdxp4lu - FLAC
2. Pause / play the audio file

Expected result
All audio files are played back properly.

Actual result
The sound is distorted, there are several interruptions, I attached a sound recording. Sometimes a short sound is played back after the audio file was paused (right at the end of the file I attached).

Regression range

• Not a regression
• Given that this is intermittent, I will set the severity field to S3.

Comment 1

[Petruta Horea [:phorea], Desktop QA]

Attachment: about:support for 93 release

Comment 2

[Petruta Horea [:phorea], Desktop QA]

Firefox profiler: https://share.firefox.dev/2ZuItsC

Comment 3

[Robert Mader [:rmader]]

Can't reproduce on Fedora 35 and looking at bug 1737793 this might be some setup issue.

Comment 4

[Petruta Horea [:phorea], Desktop QA]

Works fine now (tested on 97.0a1 and RC) using the tips provided by Darkspirit in bug 1737793.