• Music Speed Changer Pro 1
  • Music Speed Changer Pro 2
  • Music Speed Changer Pro 3

Music Speed Changer Pro

Music Speed Changer changes audio tempo (speed) and pitch in realtime quick and easy. Just select an audio file, mark the region you want to play (and loop/repeat) and change tempo and pitch on the fly.It is also possible to export the changed audio file for playback in other players. Use cases of Music Speed Changer are for instance: practicing guitar and other music instruments, transcriptions, change the speed of audiobooks, language learning...
Features:
- Change pitch and tempo (speed, time-stretch) independently
- Support for arbitrary pitch (even deviating from semi-tones)
- Loop region
- Select region
- Filtering
- Import various formats including mp3, wav, m4a, ogg, aac, ...
- Export to wav and mp3
- Volume amplification
- Play left/right channels separately (e.g. for duet training)
- Voice/Vocals reduction: reduce vocals so that only music is audible (does not work with all audio recordings!)

Note: Extreme pitch and tempo changes (for instance 24 semi-tones, which is quite a lot!) can lead to noise.

Questions, ideas, feedback? Contact us here: http://www.mobwheel.com/contact

Category : Music & Audio

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Reviews (28)

Chr. H. Sep 22, 2018     

I have loved this app for several years, but it suddenly stopped working. I did get a response from customer service, but I've emailed twice since my last response because I haven't heard back and I need to use it, and no reply. It just suddenly stopped loading files, even though it's been working great for literally years. So, it would have gotten a five except is on the blink. Hopefully it'll be back soon!

Hyp. D. May 12, 2019     

This app was the best out there and i had it since 2014 and now this year this month when I started using it on my Samsung Galaxy s10 the music will play and then shut off on lock screen. I never experienced this before, I thought it was my settings on my phone. But if it could be updated to where it was working on and off screen again I will definitely give it a 5 star rating.

Fro. Apr 9, 2019     

had this app for a while and i love it. only issue that started recently is that music keeps cutting out of phone is locked but starts up again after unlocking. never had this issue before. please fix. other than that great app UPDATE: App has been updated but still having the same issue. (09/04/2019)

Jim. M. Jul 7, 2020     

I've been using this app for awhile and it always played an .mp3 file to the end and looped it if you selected loop.Now it just shuts off after 10 minutes of a 32 minute audio .mp3 I keep playing.It also never registers itself on Android as an audio player and it's impossible to select it as the .mp3 player for your phone.It never comes up on the "open with" menu and now with Android 10 ,in settings, installed apps, MSC, open by default all options are greyed out.This is a disaster.

nat. e. Mar 24, 2019     

i change my reveiw from negative to positive. had trouble loading songs. but pretty sure it was my phone not the app. app is awsome for practicing songs at slow speeds until ready for full speed

Mik. S. Mar 28, 2020     

The app does not let me save a certain section of an audio file. Previous versions did work properly now it does not please fix this. Thanks.

K. K. Sep 25, 2018     

I have used this for 2 years and I have loved it so much but recently it's not letting me open any of my files and it keeps telling me to either open and close the app, and no matter how many times I do it, or how many files I pick it still wont let me open my music.

Wil. Aug 12, 2019     

great way to learn how to play songs on whatever instrument. So easy to set loop points, change tempo, and learn every note of a specific part of a song.

Gil. L. Nov 4, 2020     

Good app. Could be better if allowed to rotate to take advantage of the real estate.

A. G. u. Sep 12, 2018     

Great app for studying music and making samples. 5 years of great use for me.

Mar. H. May 26, 2020     

It used to let you save your wav music into mp3. Now it shuts off

Reg. M. Apr 26, 2021     

Was great but no longer works. Disappointing after paying for it ..can u please fix for a 5 star review

Mat. O. Dec 4, 2019     

Why did they get rid of the repeat function??? I need this function back!

Gen. G. May 15, 2020     

Had this app for years now and its just the best. Does everything it says it can do.

Jim. R. Aug 8, 2021     

I never could get it to work. Waste of time and money.

zaq. m. Apr 7, 2019     

can't read flac anymore on huawei mate 20

And. J. Jun 28, 2019     

great app been uses for years

99,. v. May 27, 2022     

I really love this app

evh. 5. May 31, 2020     

Used this app for years for learning guitar parts and worked great on s6, can't open songs without it crashing on s9 now, will have to use something else...shame.

Aar. C. Nov 29, 2019     

Edit: this won't let me load a single file in to it. It makes me load a whole folder every time causing my library to just be a bunch of duplicates. Will be 5 stars once this is fixed. You can loop sections, slow down in real time, change pitch, and export as an MP3. Easy to use!

A. G. u. Apr 19, 2018     

Its good except for the fact that if i go off the app and then go back on the song stops. If this was fixed it would be 5 stars

Ray. E. Apr 3, 2018     

Purchased this app via bill to my tmob account and since 6 times a day it recharges me. Ive been billed for this app 23 times within 36 hours. I am xtremely pissed. Its a new purchase so Tmob cant see it yet. In the meantime im being spamd with charges.

Ron. V. D. B. Mar 4, 2019     

Indeed latest update was in 2017. No longer fully functional as it won't load files anymore. Do not purchase!

Adi. K. Jun 9, 2018     

Super app. No problems using it whatsoever. Fantastic for music practice and training.

cha. s. Mar 8, 2019     

Time waste!

Cin. M. Jun 22, 2018     

Ive had this app for 3 years and i use it all the time i can never switch back to my default music player lol

Joh. O. Sep 4, 2017     

Great, used it for years, but when I select a song in my sd card in the file selector, it doesn't seem to come up back in the app. Farewell for now!

A. G. u. Jul 30, 2017     

Brilliant app. Does what it states very well. Extra star when it can read from SD card. (I have the feeling that this is Android system limitation?)