Slow speech down to learn a language, or breeze through podcasts at 1.5×. A phase-vocoder time-stretch keeps the pitch natural so voices and music stay in key.
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MP3, WAV, OGG, M4A · processed locally, never uploaded
A phase-vocoder time-stretch algorithm changes speed without the chipmunk effect.
Slow native speech to 0.5× and pick out every word. Re-listen at full speed to test yourself.
Compress a 60-minute show to 40 minutes at 1.5× with clean, natural speech.
No uploads, no servers. Your audio never leaves your device.
Trim, join or boost your audio.
Audio Trimmer