Descriptions : Music Speed Changer allows you to change the speed of audio files on your device in real time without affecting the pitch (time stretching) or changing the pitch without changing the speed (pitch shifting). Alternatively, both speed and pitch can be adjusted together with a single control. The app is also a music looper - you can slow down the song speed and loop sections of the music for easy practice. Another feature is the ability to reverse audio (play music backwards).
+ Pitch Shift - Change the pitch of the song up or down 24 semitones, with fractional semitones allowed.
+ Time stretching - change the audio speed from 10% to 500% of the original speed (change the BPM of the music).
+ Rate Adjustment - Change the pitch and tempo of the audio together.
+ Music Looper - Loop audio sections seamlessly and practice over and over (AB Repeat Player).
+ Extended loop function
+ Reverse music (play backwards)
+ Playback Queue - Add folder or album to the playback queue and add / remove individual tracks.
+ Waveform view with contours of the audio for precise searching.
+ Equalizer - 8-band graphic equalizer as well as preamp and balance control.
+ Analyze the audio to show the BPM and music key of each track.
+ Markers - bookmark positions in your audio.
+ Audio effects
+ Ideal for Nightcore or Fast Music creations.
+ Modern user interface for material design and easy to use.
+ Light and dark themes.
+ Built-in audio recorder.
+ Completely free and with no restrictions for this music speed controller.
+ No waiting for your local audio file to be decoded, instant playback and instant audio speed and pitch adjustment.
Required Android Versions : KitKat [4.4–4.4.4] - Lollipop [5.0–5.0.2] - Marshmallow [6.0 - 6.0.1] - Nougat [7.0 – 7.1.1] - Oreo [8.0-8.1]