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BULK AUDIO SPEED CHANGER
Speed up podcasts, lectures & videos, voices stay natural • Everything happens in your browser
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Drop audio files here or click to browse
Up to 100 files • Audio
or video
in — sped-up audio out • MP3, M4A, FLAC, WAV, MP4, MOV, WebM, MKV
Speed
0.25× — much slower
0.5× — slower
0.75×
1.25×
1.5×
1.75×
2×
2.5×
3×
4×
5×
Voices
Keep natural (recommended)
Classic — pitch rises
Save each file as it finishes
Change speed
Stop
Download all (.zip)
Clear list
0
files re-timed
0 MB
ready to download