Time Stretching Demo

This page demonstrates the ability to change the playback speed of an audio WAV file, without altering its pitch.

The Sample Files section below demonstrates the functionality with speech files provided by us, available at various playback speeds. A user may also upload their own WAV file and specify a desired speedup parameter in the Upload WAV File section.

Sample Files

Speech Demo: Original, 2x faster, 0.75x faster

Upload WAV File
Please specify a WAV file (max size = 200Kb):

Please specify a speedup factor in [0.5, 3]: