SLOW DOWN OR SPEED UP AUDIO

Change Audio Speed Online

Adjust audio tempo from half speed to double speed for review, practice, accessibility, study or creative workflows.

✓ 0.5x to 2x✓ Audio-only workflow✓ Tempo-aware FFmpeg processing

✓ No account required✓ Live progress✓ Automatic cleanup

Converter readyUp to 400 MB per request • 250 MB per file

250 MB per file400 MB per request45 min max video~30 min auto-delete

Drop audio files here or click to browse from your device No files selected MP4, MOV, MKV, AVI, WebM, MP3, WAV, FLAC, M4A, AAC, OGG, OPUS + more

Convert to Recommended MP4 is recommended for broad video compatibility.

Output quality

Highlarger file Balancedrecommended Smallermore compression

Smart output: MP4Best overall compatibility for video playback and sharing.

Size depends on source

Speed settingsFine-tune the output

Maximum resolutionNever intentionally upscales; server limit: 1080p. Audio bitrateUsed by compressed audio outputs and video audio tracks. Sample rate48 kHz is common for video production. Output filename

.mp4

Available for single-file conversion. Trim startOptional HH:MM:SS or seconds. Trim endLeave blank to convert to the end. Remove audioCreate silent video output. Playback speedAudio tempo follows the video speed.

✓ Format-aware settings✓ Live queue progress✓ Files expire after ~30 min

WHY USE THIS TOOL

Change listening speed without touching a video timeline

Slow playback can help with practice and close listening, while faster playback can shorten review time for speech and recordings.

Slow down

Use 0.5x or 0.75x for practice and close listening.

Speed up

Choose 1.25x, 1.5x or 2x for faster review.

Export the result

Create a standalone file with the chosen tempo encoded.

HOW IT WORKS

How to change audio speed

1
Upload audio
Choose a supported source file.
2
Select speed
Pick a value from 0.5x to 2x.
3
Process and download
VideoHop adjusts tempo and returns the new audio file.

Good to know

Speed changes alter duration. A 2x file is roughly half as long; a 0.5x file is roughly twice as long.

RELATED TOOLS

More Ways to Work With Your Media

Use a focused tool when you know the task, or open the universal converter for full format control.

QUICK ANSWERS

Audio Speed Changer FAQ

Can I slow audio to half speed?

Yes. Choose 0.5x.

Can I make speech 1.5x faster?

Yes. 1.5x is available.

Does the exported duration change?

Yes. Faster playback shortens duration and slower playback lengthens it.