ファイル・メディア
オーディオピッチ変更
Shift pitch up or down by semitones.
Drop a file or click to browse
Semitones up (+) or down (−) without changing tempo
FFmpeg.wasm runs entirely in your browser. The first use downloads ~30 MB of engine — cached for every subsequent run.
編集者注
Understanding · Change the pitch, keep the timing.
この詳細な解説章は現在、英語版のみで提供されています。上の変換ツールはあなたの言語で動作しますが、長文の解説記事はまだ翻訳されていません。
よくある質問
Quick answers.
›Will changing the pitch affect the tempo?
No. This tool uses time-stretching algorithms to ensure the duration and speed of the track remain identical while the pitch shifts.
›What is a semitone?
A semitone is the smallest interval used in Western music, equal to one twelfth of an octave or one key on a piano. Shifting by 12 semitones moves the audio up or down exactly one octave.
›Which file formats are supported?
The tool supports common web-standard audio formats including `MP3`, `WAV`, `OGG`, and `AAC`. The output is typically provided as a high-quality `WAV` or `MP3` file.
›Is my audio privacy protected?
Yes. The pitch-shifting logic runs entirely via the Web Audio API in your browser, so your files stay on your computer throughout the process.
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