Change Audio Speed Online
Speed up or slow down audio files while preserving pitch. Perfect for podcasts, lectures, and music practice. No upload — processed in your browser.
Drop your audio file here
or click to browse files
Your files never leave your device. All processing happens locally in your browser using WebAssembly.
How to Change Audio Speed
Select or drop an audio file (MP3, WAV, OGG)
Choose your desired speed (0.5x to 2.0x)
Click Change Speed to process
Download the speed-adjusted audio
Why Use Our Change Audio Speed Tool
- Speed range from 0.5x (half speed) to 2.0x (double speed)
- Preset speed buttons for quick selection
- Fine-tuning with precision slider control
- Preserves original pitch (no chipmunk or deep voice effect)
- 100% private — files never leave your device
- Supports MP3, WAV, OGG, FLAC, and more
- No signup, no watermarks, no limits
- Ideal for podcasts, lectures, music practice, and transcription
Change Audio Speed — Frequently Asked Questions
Does changing speed affect the pitch of the audio?
No. Our tool uses advanced tempo stretching that adjusts speed while preserving the original pitch. Voices and music sound natural at any speed — no chipmunk or deep voice effects.
What speed range is supported?
You can adjust speed from 0.5x (half speed) to 2.0x (double speed). Use the preset buttons for common speeds or the slider for precise control.
What are the best use cases for audio speed change?
Common uses include speeding up podcasts or audiobooks for faster listening (1.5x-2x), slowing down music for practice or learning (0.5x-0.75x), slowing down lectures for note-taking, and adjusting audio pacing for video editing.
Can I speed up a podcast to listen faster?
Yes! 1.5x speed is the most popular setting for podcasts — you save 33% listening time while keeping speech perfectly understandable. Try 1.25x if 1.5x feels too fast.
What audio formats are supported?
We support MP3, WAV, OGG, FLAC, AAC, and most other common audio formats as input. The output is in MP3 format for universal compatibility.
Is my audio uploaded to a server?
No. Everything runs locally in your browser using WebAssembly. Your audio file never leaves your device.
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