Steps to reproduce
- Open https://m.soundcloud.com/discover/sets/charts-top:piano:us (or another chart with music that has minimal distortion, so you can hear the issue more clearly)
- Play a track and it should be very clear with very rare crackling sounds
- Change focus away from the tab, for example, to the Android home screen or another app, and a very brief crackling sound may occur immediately and then intermittently as the track plays
Background audio plays smoothly on other sites, such as YouTube (with the "Video Background Play Fix" add-on installed) and my local public radio station (KQED FM, click the Listen Live button), so the expectation is that SoundCloud also would work seamlessly.
Intermittent crackling sounds. Here's the SoundCloud user's latest thread: https://support.mozilla.org/questions/1345089
Sony Xperia 10 II dual
Firefox release type
Confirmed in Firefox Nightly 92.0a1 on Samsung Galaxy S20 FE 5G with Android 11.