The current audio waveforms work pretty well, though they have some visual artefacts every now and then: during the animations, you will often see them "outside" of the clip until the animation is complete and they "clamp" back into the clip boundaries.

Less often, you will see them remain stuck outside of the clip boundaries, like the screenshot in attachment #274061 [details] shows.


To reproduce:
- Insert a bunch of short clips with clearly different sound levels (to be able to notice when a clip boundary is not respected).
- Click on various points of the zoom slider until you notice that one of the clip waveforms crosses the boundaries of other clips.

To work around the issue: you can usually change to another zoom level or scroll the timeline horizontally far enough to get the waveform to re-clamp to the clip boundaries.



This was initially identified in bug #728012 where Lubosz mentioned the idea of making them sync.

I'm wondering if this is dependent on us rewriting the timeline canvas (again) from Clutter to GSK, so filing a new bug and deferring that to the future since this issue has workarounds.