Music Speed & Pitch Changer

Change the speed and key of any song. Music Speed & Pitch Changer is a simple pitch changer and tempo changer: slow down a track without changing its pitch, speed it up, or shift the key up or down, then save the result as MP3, M4A and more. Everything happens on your phone, so your music is not uploaded and nothing is watermarked.

WHAT IS MUSIC SPEED & PITCH CHANGER?
It is a small audio tool for musicians, singers, dancers, students and anyone who wants a song at a different tempo or in a different key. Pick a file, move two sliders, listen to a short preview, and save a new copy. Your original file is never touched.

CHANGE SPEED WITHOUT CHANGING PITCH
• Tempo from 50% to 200% in fine steps
• Slow down a hard passage to learn it by ear or practise an instrument
• Speed up a podcast, a lecture or a workout playlist
• The pitch stays the same, so voices and instruments do not sound like chipmunks or monsters

CHANGE KEY WITHOUT CHANGING SPEED
• Shift the key up or down in semitones
• Fine tune in cents to match a backing track or an instrument that is slightly off pitch
• Move a song into a range that suits your voice, or transpose a backing track for karaoke
• The tempo stays the same while the key moves

ONE-TAP PRESETS
• Slow down: a gentler pace for practice
• Speed up: get through audio faster
• Nightcore: faster and higher, the classic sped-up sound
• Change key: jump straight to the key and pitch controls

FIND THE TEMPO AND KEY
• Use the analyzer to measure a song's tempo (BPM) and key
• Type a target tempo or a target key and the sliders are set for you
• Handy for DJs, dancers and bands who need two songs to match

PREVIEW BEFORE YOU SAVE
• Listen to a 12 second preview with your settings
• Adjust the key or tempo until it sounds right, then save

SUPPORTED FORMATS
• Import common audio files from your phone, and the soundtrack of a video
• Export as MP3, M4A, WAV, FLAC, OPUS, OGG or AIFF
• Choose 128, 192 or 320 kbps for lossy formats

SAVE AND SHARE
• New files are saved in Music/Music Speed
• My songs lists the files you already changed; Saved files opens the folder
• Play a result right away, share it to chat apps, email or cloud storage, or use it as a ringtone
• Process several files in one go

HOW TO CHANGE THE SPEED OR KEY OF A SONG
1. Open the app and tap Change speed & pitch, or pick a preset.
2. Choose one or more audio files, or a video.
3. Move the Key and Tempo sliders. Use Fine tune for cents.
4. Tap Preview to listen, then choose the format and quality.
5. Tap Process. Play or share the new file from the result card.

PRIVATE AND OFFLINE
• Files are processed on your device and are not uploaded
• No account is needed to change the speed or key of your music
• No watermark is added to your audio
• Processing runs as a notification so it can finish while you use another app

FREE AND PREMIUM
• The core tools are free to use
• Some options, such as larger batches or the highest quality, use credits or Premium
• Premium removes limits and credits
• Subscriptions renew until you cancel them in Google Play
• Light and dark theme, in English and Vietnamese

ANY SONG, ANY PURPOSE
Practise an instrument along with a slower recording, sing karaoke in an easier key, match two songs for a dance routine, or listen to a lecture at one and a half times the speed: pick a file, set the tempo or key, listen and save. You can process the same song again with different settings as often as you like.

Use Music Speed & Pitch Changer as a tempo changer for practice, a key changer for singing, a pitch changer for covers, or a speed changer for podcasts and lectures. Slow down a song, speed it up, shift its key and keep the sound clean. Download it and change the speed and pitch of your music in a few taps.