1737684 - playing widevine content at 2x speed causes static sounds in audio.

Status: RESOLVED DUPLICATE of bug 1749804

(Core :: Audio/Video: Playback, defect, P3)

Description

[amansieboatengkofi]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36

Steps to reproduce:

What did you do?

Go to this shakaplayer demo url on Firefox.
Set playback speed to 2.0
Listen to the end, you will hear static sounds from the audio

https://shaka-player-demo.appspot.com/demo/#audiolang=en-US;textlang=en-US;uilang=en-US;asset=https://storage.googleapis.com/shaka-demo-assets/angel-one-widevine/dash.mpd;panel=ALL_CONTENT;build=uncompiled

Actual results:

when you play audio from the url below on firefox, at 2x speed, you hear static sounds
https://shaka-player-demo.appspot.com/demo/#audiolang=en-US;textlang=en-US;uilang=en-US;asset=https://storage.googleapis.com/shaka-demo-assets/angel-one-widevine/dash.mpd;panel=ALL_CONTENT;build=uncompiled

Expected results:

I expect to not hear static sounds.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 2

[Bryce Seager van Dyk [:bryce] (he/him) - Not reading bugmail]

Using Firefox 93 or greater, can you navigate to about:config and set the media.eme.max-throughput-ms preference to 300, restart Firefox, and see if that helps with the issue?

Comment 3

[joeyparrish]

I'm unable to reproduce this issue in FF 100. I also see that media.eme.max-throughput-ms is set to 500 by default.