Music Speed Changer

Single Minded Productions, LLC

Contains adsIn-app purchases

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 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.
-Time stretching - change audio speed from 15% to 500% of original speed (change BPM of music).
-Utilizes professional quality time stretching and pitch shift engine.
-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.
-Great for making Nightcore or Fast Music creations.
-Export your adjustments to a new audio file.
-Save an altered version of the whole track or only the captured loop section (excellent for making weird ringtones).
-Modern material design UI and simple to use.
-Light and dark themes.
-Built-in audio recorder.
-Completely free and no restrictions on this music speed controller.
-No waiting for your local audio file to decode, instant playback and instant audio speed and pitch adjustment.

Ratings and reviews

I've now been using this program for close to 10 years. It is SUPER! There are programs out there costing hundreds of dollars that don't work as well as Music Speed Changer. I play the fiddle by ear. With this program I select a recording of a song I want to learn. Then, I slow down the recording to learn the piece. I can loop difficult to learn segments of the song. I can change the song to the key I want. Music Speed Changer is very intuitive. I highly recommend it!

I use this app for MP3 songs that I cannot use on my normal music app. I love features of it, like the pitch and speed. I paid for the no ad option years ago, so I cannot speak on that end. My only gripe is that you can change what is shown to edit song, but the song editor options are in the order it wants (with the most recent update reversing some of them...) my suggestion would be to allow the user to order it how they want (in settings tab), but besides that I love this app!

I originally gave this app a 5 star rating but in the last 6 months it's been crashing on my S22 phone. Otherwise it's the perfect tool for learning tunes by ear and for transposing into different keys. Sound quality is amazingly good! I hope they improve the stability so I don’t have to find another app. The response from support about battery saver is incorrect. The following message appears: Something went wrong with Music Speed Changer Music Speed Changer closed because this app has a bug.

What's new

• Added a menu option to hide tracks from the Library and Folders view.
• Added setting to auto hide short duration tracks, and manage manually hidden tracks.