音樂變速器 - Speed Shifter

Name: 音樂變速器 - Speed Shifter
Author: 柒奈數位 Qinae Studio

Android app by 柒奈數位 Qinae Studio. Music & Audio · 柒奈數位 Qinae Studio

Store rating: Unknown
Store rating count: Unknown
Download price: Free to download
In-app purchases: Listed by the store
Version: 1.0.0
Listing last refreshed: 2026-09-15

Store description excerpt

🎵 Speed Shifter - A professional-grade audio speed adjustment tool, processing data entirely locally to protect your privacy. Whether practicing singing, composing music, or learning an instrument, easily adjust the playback speed. ✨ Main Features 【Instant Speed Adjustment】 - Precise multi-speed adjustment (0.5× ~ 2.0×) - One-click acceleration/deceleration, hear the change instantly - Visual speed indicator clearly displays the current speed 【High-Quality Output】 - Supports WAV lossless output — preserves original sound quality, suitable for professional use - Supports MP3 compressed output — small file size, easy to share - Automatic file naming (original filename_speed + speed) 【Wide Format Support】 - Full support: MP3, WAV, AAC, M4A - Compatible with most devices: FLAC, OGG - Direct processing without conversion 【Completely Offline Processing】 - All speed adjustments are completed locally on your phone - No internet required, no file uploads - 100% privacy guaranteed 🎯 Who is it suitable for? 🎤 KTV Singers Want to keep up with fast-paced songs? Practice slowly to master the basics, then gradually increase the speed to the original! 🎸 Music Creators: Listen to the different tempos of the arrangement to find the most suitable rhythm version. 🎹 Instrument Learners: Slow down your practice pieces to a comfortable tempo, progressing gradually for better results. 🎧 Music Lovers: Simply want to experience the atmosphere of songs at different speeds? You can easily try it out. 💡 Why choose Speed Shifter? ✓ Simple Interface — No learning curve, just open and use! ✓ Fast Processing — A 5-minute song completed in under 30 seconds. ✓ Excellent Sound Quality — Utilizes industry-standard variable speed algorithm. ✓ Privacy First — No personal data collection. ✓ Small Size — Minimal storage space on your phone. 🔒 Privacy Commitment This application promises: - No collection of personal data such as name, phone number, or email address. - No access to your contacts or photo album. - No uploading of your audio files to any server. - All calculations are performed locally on your device. For a detailed privacy policy, please refer to the link within the application. 📱 System Requirements - Android 7.0 or higher - 2GB or more RAM recommended - Approximately 50MB storage space 💬 About the Developer Qina Music is dedicated to creating lightweight, user-friendly, and privacy-focused tools for music creators. ⚠️ Important Notes - The speed adjustment process requires loading the entire song into memory. Long audio files (over 30 minutes) may cause your phone to lag. - WAV files are large; we recommend exporting to MP3 to save space. - FLAC and OGG compatibility depends on your device. If you cannot open them, please use MP3 or WAV instead. - This application contains ads; ad revenue will support continued development. Thank you for downloading! Enjoy using it! 🎶

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