Audio Speed Changer Pro

Audio Speed Changer Pro allows you to modify the playback speed or pitch of your audio files "on the fly", fitting their audible characteristics to your needs. It can be used to help transcribing audio, to transpose songs, to save time listening to audiobooks/podcasts, to practice dance steps or just to have fun!

How it works: Choose a file, all songs from a folder or a whole album from your personal collection, limit the time frame you want to listen to, set the percentage of speed change you want to apply, set the number of semitones you want to transpose and just press play!

List of features:

- Audio formats supported: mp3, ogg, wav.
- Load songs, folders or whole albums (press and hold for options)
- Speed up or slow down audio up to 200% (0.25x - 4x in speed)
- Change pitch from -1 to +1 octave (in semitones or 1/10 semitone steps)
- Export audio as new MP3 or WAV files
- Start and End markers: limit the timeframe you want to listen to by drag&drop or precise setting.
- Song Position marker: set the position you want to start listening to at any time!
- A-B loop and repeat mode
- Plays in background
- Auto saves configuration for each song

About permissions (ASC Pro requests 3):

- READ PHONE STATE allows Audio Speed Changer to stop automatically when there's an incoming call.

- WRITE EXTERNAL STORAGE and WRITE INTERNAL STORAGE allow ASC Pro to export the processed audio as new audio files

No personal information is saved, including contacts or phonecalls. Contact me if those permissions bother you.

Credits:

Developped by Gabriel Simões
Icon by Lucas Reis (lucasdzn@gmail.com)

* Please report bugs and/or request features by acessing the option "Contact Developer" from the main menu, and not by posting comments on the market. Thank you!

** Before buying this app, try its free version! (Audio Speed Changer)

(time stretching - time stretcher - pitch shifter - pitch shifting)