Audio Speed Changer

Change the playback speed of your audio files without altering the pitch.

Upload & Adjust

How It Works

This tool uses your browser's built-in Web Audio API to change the playback speed of an audio file without changing its pitch (a process often called "time-stretching"). When you upload a file and adjust the speed, the tool creates an offline audio context to re-sample the audio at the new rate. It then encodes the result as a WAV file, which you can download. This is perfect for listening to podcasts or lectures faster, or for slowing down music to learn a difficult passage.

Related Tools

Video Compressor

Reduce the file size of your videos.

Video Converter

Convert videos to different formats.

Merge Video

Combine multiple video clips into one.

Video Cutter

Trim or cut video files.

Video Resizer

Resize video dimensions.

Audio Cutter

Trim or cut audio files.

Merge Audio

Combine multiple audio files into one.

Volume Change

Increase or decrease the volume of audio.

Audio Equalizer

Adjust audio frequencies.

Song Analyzer

Find the key, BPM, and other audio features of a song.

Microphone Tester

Test your microphone to ensure it's working.

Camera Tester

Check if your webcam is working correctly.

Speaker Tester

Test your speakers to ensure they are working correctly.

Text to Speech

Convert written text into natural-sounding audio.