Music Speed Changer lets you control the tempo and pitch of any audio track independently and in real time.
Whether you're a musician learning a difficult solo, a dancer matching choreography to the beat, or a language student replaying lessons at a comfortable pace — this app gives you precise control over how your music sounds.
HOW IT WORKS
Import any audio file and adjust speed and pitch independently using real-time audio processing:
Speed Control:
- Slow down from 0.25x to learn complex passages note by note
- Speed up to 4x for quick review or time-saving playback
- Fine-tune with 0.01x precision using the speed slider
Pitch Shifting:
- Shift pitch up or down by up to 12 semitones
- Transpose songs to match your vocal range or instrument tuning
- Change pitch without affecting playback speed
A/B Loop:
- Set start and end markers on any section
- Loop continuously for focused practice
- Quickly adjust loop points with drag handles
WHAT YOU CAN DO
- Practice: Slow down guitar solos, piano pieces, or drum parts
- Dance: Match any song's tempo to your choreography
- Learn: Replay language lessons or lectures at your own speed
- Transcribe: Slow down and loop passages for accurate notation
- Karaoke: Transpose songs to fit your vocal range
- DJ: Preview tracks at different tempos and keys
KEY FEATURES
- Real-time speed control (0.25x – 4x)
- Independent pitch shifting (±12 semitones)
- A/B loop with adjustable markers
- Import from Files app or music library
- Background playback support
- Waveform display for precise navigation
- Bookmarks to save favorite positions
- Clean, intuitive interface
WHY MUSIC SPEED CHANGER
Most music players only let you change speed, which also changes pitch. Music Speed Changer uses advanced audio processing to adjust tempo and pitch independently — so slowing down a song doesn't make it sound deep and distorted.
Real audio science. No compromises.
PRICING
- Free: Core speed and pitch controls
- Premium: Unlock A/B loop, bookmarks, extended speed range, and all features
- Cancel anytime, no hidden fees
SUPPORT
Questions or feedback? We respond within 24 hours.
Terms of Use: https://o2app.store/terms
Privacy Policy: https://o2app.store/privacy
