音訊變速變調器
速度與音高
TIME-STRETCH DSP⚡ 純瀏覽器 Phase Vocoder · 速度與音高獨立調節支援 MP3 / WAV / FLAC
製作向音高與速度風格指南
[預覽]原音重設
1.00x 原速 · 0 半音
Nightcore 電音加速+2 半音 / 1.25x
1.25x 加速 · +2 全音明亮提升
慢速下潛-2 半音 / 0.85x
0.85x 減速 · -2 溫暖混響氛圍
花栗鼠調性+6 半音 / 1.10x
1.10x 速度 · +6 尖銳花栗鼠音
重低音轉調-5 半音 / 0.95x
0.95x 速度 · -5 深沉超低音
ABOUT THIS TOOL
Free Online Audio Speed & Pitch Changer
Slow down tracks for transcription, speed up practice loops, or shift pitch without changing tempo — and vice versa. Processing runs locally via Web Audio API for private, instant adjustments.
How it works
- 01Upload an audio file or select one from Library after sign-in.
- 02Adjust speed and pitch sliders independently — preview changes in real time.
- 03Fine-tune for practice, harmonic mixing prep, or vocal transposition workflows.
Key features
- Independent speed and pitch control
- Real-time preview in the browser
- Local processing — files are not sent for analysis
- Useful for DJ tempo matching and musician practice
Common questions
Yes. Speed and pitch are controlled separately so you can slow a track for learning without lowering the key, or transpose without altering BPM.