Independently adjust the speed and pitch of your music and other audio.

Music Speed Changer lets you modify audio playback speed in real-time without altering pitch (time stretching), adjust pitch without changing speed (pitch shifting), or modify both simultaneously. It also functions as a music looper, ideal for slowing down songs and looping sections for practice.

Export your adjusted audio as MP3, FLAC, or WAV files for sharing or playback on other devices.

Perfect for musicians needing to slow tempos or change tunings, speeding up audiobooks, creating nightcore remixes, or simply enjoying your favorite songs at a boosted 130% speed.

Key Features:

• Pitch Shifting: Adjust pitch up or down by 24 semitones (fractional adjustments allowed). The adjustment range is customizable.
• Time Stretching: Modify playback speed from 15% to 500% of the original (adjust BPM). The range is customizable.
• High-Quality Engine: Employs a professional-grade time stretching and pitch shifting engine.
• Formant Correction: Provides more natural-sounding vocals during pitch shifting (Pro feature, requires in-app purchase or subscription).
• Rate Adjustment: Simultaneously change pitch and tempo.
• Wide File Support: Opens most common audio file formats.
• Music Looper: Seamlessly loop audio sections for repetitive practice (AB repeat). Advanced looping allows easy movement to the next or previous measure.
• Reverse Playback: Play audio backward.
• Playing Queue: Manage playback queues by adding folders, albums, or individual tracks.
• Waveform View: A visual waveform aids precise seeking within the audio.
• 8-Band Equalizer: Fine-tune audio with an 8-band graphic equalizer, preamp, and balance controls.
• BPM & Key Analysis: Analyzes tracks to display BPM and key.
• Markers: Set bookmarks within your audio.
• Audio Effects: Apply echo, flanger, reverb, and vocal reduction (karaoke effect).
• Audio Separation: Separates vocals, drums, bass, and other instruments (requires 4GB+ RAM and 64-bit Android).
• Nightcore & Fast Music Creation: Ideal for creating nightcore and fast music.
• Audio Export: Export adjusted audio in various formats and quality settings. Save entire tracks or just looped sections (great for ringtones).
• User-Friendly Interface: Modern, intuitive design with light and dark themes.
• Built-in Recorder: Includes a built-in audio recorder.
• Free & Unrestricted: Offers free speed control (formant correction is a Pro feature).
• Instant Playback & Adjustment: No decoding delays; instant playback and adjustments.

Version 13.3.2-pl (Sep 26, 2024):

• Added a "Recently played" playlist to the Library's Playlists tab.