Music Speed Changer

Contains adsIn-app purchases
4.8
176K reviews
Content rating
Everyone
10M+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

Music Speed Changer allows you to change the speed of audio files on your device in real time without affecting the pitch (time stretch), or change the pitch without changing the speed (pitch shift). Alternatively, both speed and pitch may be adjusted together with a single control. The app is a music looper as well - you can slow down song speed and loop sections of the music for easy practice.

You can also save the adjusted audio to an MP3, FLAC, or WAV audio file for sharing with friends or listening in another player.

Music Speed Changer is great for musicians practicing an instrument needing to slow down the tempo or practice in a different tuning, speeding up audio books for faster listening, making nightcore or just rocking out to your favorite song at 130%.

Features:

-Pitch shifting - change song pitch up or down 24 semi-tones, with fractional semi-tones allowed. Range of modification may be adjusted in the app's Settings.
-Time stretching - change audio speed from 15% to 500% of original speed (change BPM of music). Range of modification may be adjusted in the app's Settings.
-Utilizes professional quality time stretching and pitch shift engine.
-Formant correction for more natural sounding vocals while pitch shifting (Pro feature, requires in-app purchase or subscription).
-Rate adjustment - change the pitch and tempo of the audio together.
-Opens most audio file formats.
-Music looper - seamlessly loop audio sections and practice over and over (AB repeat play).
-Advanced looping feature - move the loop to the next or previous measure or set of measures with the touch of a button after the perfect loop is captured.
-Reverse music (play backwards). Decode the secret message or learn a passage backwards and forwards.
-Playing queue - add folder or album to the playing queue and add/remove individual tracks.
-Waveform view showing contours of the audio for precise seeking.
-Equalizer - 8-band graphic equalizer, and preamp and balance control.
-Analyze the audio to display the BPM and musical key of each track.
-Markers - bookmark positions in your audio.
-Audio effects - apply effects such as echo, flanger and reverb, or reduce the vocal levels in the music for a karaoke effect.
-Audio separation - Track splitter and track isolation features separate or remove vocals, drums, bass, and other instruments in any song (feature requires a device with 4 GB or more RAM, and 64-bit Android OS).
-Great for making Nightcore or Fast Music creations.
-Export your adjustments to a new audio file. File format and quality may be adjusted in the app's Settings.
-Save an altered version of the whole track or only the captured loop section (excellent for making unique ringtones).
-Modern material design UI and simple to use.
-Light and dark themes.
-Built-in audio recorder.
-Free and unrestricted music speed controller (formant correction feature requires in-app purchase or subscription).
-No waiting for your local audio file to decode, instant playback and instant audio speed and pitch adjustment.
Updated on
Mar 8, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity and 2 others
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

169K reviews
Jonathan Mergott
May 30, 2026
absolutely awesome. I can kill the vocals and it's a karaoke app. I can process a mp3 down to all diff parts, get rid of guitar and vocals and play and sing them myself along with it! I can add effects like reverb and get a more "live" feel. I can change the pitch and the speed. so if it's too hard to sing in the key it's written in, I can tune down 1 step and adjust the whole song. if it's too fast, I can slow it down, isolate the guitar until I learn it. this is really amazing. fav new app!
13 people found this review helpful
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Frederick Wise
July 18, 2026
Great for the home recording Rockstar. Hear your efforts a little faster or In different key lots of fun. Just tried the new instrument isolation feature and it works fairly well but is a bit slow but I think you need. strong fast computer if you want that sort of thing to work really fast but amazing you can even do that type of trick with a phone. I don't do any social media but I'm addicted to the recording studio and movie making device I have in my pocket, a Google pixel 10 xl pro. Amazing.
3 people found this review helpful
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Olivia Fitzsimmons
July 8, 2026
I enjoy this app, the lifetime pro is 10.99 or close to that. The design is a simple design that doesn't overwhelm and is easy to navigate. I scroll the settings and see what sounds good. Music Speed Changer has a great mixer/producer quality, as though I were to go to school for audio engineering/mixing I would know what to do with these tools on this app as it's available on the app and it's free unless you want to pay the 10.99 which I think is worth more for certain. Thanks for developing.
1 person found this review helpful
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What’s new

Added support for audio playback of MKV files.