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Audio Speed Changer - Speed Up or Slow Down Audio Online

1 uses

Drop an audio file here or click to browse

Supports MP3, WAV, OGG, AAC, FLAC and more

Speed Change Tips

Speed Range
Choose from 0.5x (half speed) to 2x (double speed) for your audio
Pitch Preserved
The atempo filter adjusts speed while maintaining the original pitch
Learning
Slow down podcasts or lectures to 0.75x for easier comprehension
Workout
Speed up music to 1.25x or 1.5x for higher-energy workout playlists

Frequently Asked Questions

Q Does changing speed affect the pitch?
A The tool uses the atempo filter which adjusts speed while preserving the original pitch of the audio.
Q What speed range is available?
A You can set the speed from 0.5x (half speed) to 2x (double speed) using the preset buttons.
Q Which audio formats are supported?
A Most common formats including MP3, WAV, OGG, AAC and FLAC are supported.
Q How can I slow down recorded lectures or podcasts for better understanding and note-taking?
A Absolutely! Our free online audio speed changer is perfect for this. Simply open your MP3, WAV, or other audio file directly in your browser. You can then easily slow down the playback to 0.5x speed without altering the pitch. This allows you ample time to process information, transcribe interviews, or take detailed notes from lectures or podcasts directly. No uploads needed, making it ideal for sensitive content.
Q Is there a free online tool to speed up spoken audio for quick review or transcription?
A Yes, our free online Audio Speed Changer is ideal for this. You can instantly open and speed up MP3, WAV, or other spoken audio files directly in your browser without any uploads. Accelerate playback from 1x up to 2x while maintaining the original pitch, perfect for efficient content review, checking transcriptions, or just listening through recordings more quickly.

How to Change Audio Speed

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