Music Speed Changer

Contains adsIn-app purchases
12.8K reviews
Content rating
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About this app

The best Music Speed Changer, now with updated UI and new functionalities.
If you like the effect of your modifications then save it to file on your device.

★ Play modified music / sound in audio formats: wav, mp3, ogg, flac and more.
★ Change Tempo of track in range 4x slower to 4x faster.
★ Set Pitch Octaves Change between -1 and +1.
★ Save / Export modified track to: wav/ogg/flac.
★ Tempo & Pitch may be changed in any moment.
★ 2 modes of changing Tempo & Pitch - slider (fast) / pad (accurate).
★ Equalizer
★ Loop Range
★ Speed up or slow down your audio and additionally apply effects to it.
★ Optimization modes for content type - Music / Speech

To play modified track just select your track from music library or by browsing your device.

Supported formats: wav / mp3 / ogg / flac / acc and more.

No matter what format, selected files can be instantly played.

If you want to have more fun you can change tempo or pitch of your music track.
"Tempo" describes how fast sound will be played, 100% is original/non-changed tempo, 50% is 2x slower, 200% is 2x faster. Range is: 25% - 400% .
"Pitch" describes how pitch will be changed with difference represented as -24.0 .. +24.0 semitones, 0.00 is original/non-changed pitch.
These values may be adjusted by slider or by clicking button near them and setting accurate value.

You may also save your music into file.
Supported formats for export / saving: wav/acc (various BPS).

Please note that most of operations are cpu-intensive and for good results you need a performat device.

Tempo & Pitch values are auto-saved. When you select new track these values are set to default values.

More technical info:
Supported stream format: 8/16/24 bit encoding, 1-8 channels, 8000 / 11025 / 16000 / 22050 / 44100 / 48000 Hz sample rate. Used sample rate has to be supported by device, 8 bit encoding is extended to 16 bit encoding so device has to support 16 bit.

✓ App uses permissions for writing on SD card to enable exporting tracks.
✓ Other permissions like "Internet" are used by advertising services.

May be easily ignored if you don't want to support this app.

Please consider rating app if you find it useful, it really helps, thank you.

If you like this app you may also enjoy "Reverse Music Player":
Updated on
Aug 20, 2023

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
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

11.9K reviews
Michael Ford
February 28, 2021
I've used this app a lot to help learn harmonica songs by slowing them down without losing quality, but I've had enough of the ads on this newer version. The old one was way better Every time I pause a stupid song, a full screen ad pops up over everything while I'm using it. Then I have to close the ad if i can find the "x" to get back to the controls again. Drives me insane. Uninstalling it now!
76 people found this review helpful
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March 8, 2021
We are sorry for this, but to continue work on this free app we need revenue from Ads. If you don't want to see the Ads you can purchase the ad-free version from side menu. Thanks for your understanding!
April 7, 2022
I've used this app for...well, for YEARS. Since 2014, at least. When I found out about the equalizer, I was stoked! The issue is...when I try to export a song after modifying the equalizer, it doesn't transfer over my modifications. Is this something I have to buy? Do I have to pay money in order to export songs after using the equalizer to fix them? If so, then that's...disappointing. Might as well get rid of the other features if they're not free, either.
29 people found this review helpful
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Really cringe
September 8, 2023
I love it sm! It's so easy to use and there's no difficulties with it. But I just have one suggestion and that is, would you mind putting a reverb system in this? I'd like to have reverb with my music. Thank you!
1 person found this review helpful
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What's new

New UI
Speech & Music modes
Range Loop
AAC Export