# Audio Speed Changer: Speed Up or Slow Down Audio Free | Aswati Updated 10 Oct 2026 Free tool · runs in your browser # Audio speed changer. Speed up or slow down any song or voice clip, make sped-up and nightcore versions, and download the result as a WAV. Free, private and instant. 1 · Choose audio Drop an audio file here or tap to choose one MP3, WAV, M4A, OGG or FLAC. It never leaves your device. No file to hand? Try it on a free, voice-only Aswati nasheed: 2 · Pick a style Speed Reverb amount Room size 3 · Listen and export Download WAV Choose a file or one of the free Aswati nasheeds to start. From Aswati ### Want this sound on 120+ royalty-free tracks? Aswati Studio has the same slowed, sped-up and reverb presets built into its stem editor, on a library of voice-only nasheeds and vocal beds that are cleared for monetised videos, reels and client work. No copyright claims, no instruments. [Explore Aswati Studio](https://studio.aswati.co) [Get 8 free tracks](https://aswati.co/vocals) An **audio speed changer** plays a recording faster or slower. This one ranges from 50% to 150% and changes pitch along with speed, which is exactly the sound of **sped-up** and **nightcore** edits (faster and higher) and **slowed** edits (slower and deeper). Pick a preset, adjust while it plays, and export a WAV. ## Speed settings for common edits - **Sped up (reels and TikTok):** 115 to 125%. Fits more energy into a short clip. - **Nightcore:** 125 to 135%, bright and high. - **Fit a video length:** divide the track length by the length you need. A 40-second track under a 34-second clip needs about 118%. - **Slowed:** 75 to 90%, usually with reverb. The [slowed + reverb generator](https://aswati.co/tools/slowed-reverb) starts there. ## Speeding up a song doesn't make it copyright-free Platforms match altered audio, so a sped-up copyrighted song can still be claimed or muted. Use audio you have the rights to. Aswati's voice-only nasheeds are royalty-free for monetised posts, and the Studio editor has speed and reverb presets built in. ## Frequently asked questions ### How do I change the speed of an audio file? Load the file, drag the Speed slider (50% to 150%) or pick a preset, preview it, then export a WAV. Set the reverb amount to zero if you only want the speed changed. ### Does changing the speed change the pitch? Yes. This tool changes speed and pitch together, like a record played faster or slower. That is the sound used for sped-up, nightcore and slowed edits. ### How do I make a nightcore or sped-up version? Choose the Sped up preset (120%) or Nightcore (130%), preview it, and export. Small amounts of reverb are optional. ### Is my file uploaded anywhere? No. The audio is processed by your browser on your own device and never sent to a server. Voice only · start free ## Speed up audio you're allowed to post [Get the free pack](https://aswati.co/vocals) --- Canonical page: https://aswati.co/tools/audio-speed-changer