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VSE - Bad interpolation in exported audio
Open, Needs Triage by DeveloperPublic


Blender Version
Broken: 2.80

Short description of error
Exported audio from the VSE is not properly interpolated, creating a 'stair-stepped' pattern when it should be smooth.

Channel 1 is the original waveform with keyframe applied, channel 2 is the timeline exported to wav, and imported back in.

Also, there appears to be a delay on the animation by a frame - the fade in should be at full volume on frame 7, but it reaches full volume at frame 8 on the exported waveform.



Event Timeline

side note: The frequency of the interpolation can be controlled with the 'accuracy' setting when exporting as audio only, but there appears to be now way to control this when exporting to video.
My suggestion: This accuracy setting should be changed to a render setting, and always displayed in the render panel under the other audio settings.