Sound blip at the end of a clip that was sped up

With your minimal steps, I am not able to reproduce the issue.

Could you share a bit more information?

  • Video Mode settings (Click on Output, then Properties)
  • Video clip properties (Click on the clip, then Properties)
    • Video Resolution & FPS
    • Audio tab: Codec, Channels, Sample Rate

Is the sound blip only heard in the preview?