音質を落とさないカット
ここでのMP3カットはデコード1回・再エンコード1回 — どのMP3エディタとも同じ1世代の劣化で、 192〜320kbpsでは聞き分けられません。静かな瞬間やドラムの直前でカットすれば、つなぎ目は 聞こえません。波形が谷を教えてくれます。着信音を作るなら、フェードと長さガイド付きの着信音メーカーへ。形式ごと変えるならオーディオコンバーター、 カットが小さすぎたら音量ブースターが直します。
音声ファイルをここにドロップ、またはクリックして選択
MP3・WAV・AAC/M4A・OGG — ローカルでデコード、アップロードなし
よくある質問
MP3をオンラインでカットするには?
MP3をドロップし、残したい範囲をハイライトが覆うまで2つのハンドルをドラッグ、端を試聴して、MP3かWAVを選んでダウンロード。デコード・カット・エンコードはすべてブラウザ内 — 100MBのファイルもマシンの速度でカットでき、アップロード待ちはありません。
MP3のカットで音質は落ちる?
1世代分: ファイルがデコードされ、カット部分が1回だけ再エンコードされます — 本当にカットするMP3エディタなら必ず同じです。192か320kbpsなら、ほとんど誰にも違いは聞き取れません。さらに編集する予定ならWAVで書き出しを — デコード以降は無劣化です。
ファイルサイズの上限は?
端末がメモリにデコードできる限り — 実用上は数時間分の音声です。何もアップロードされないので、サーバー側の上限も待ち行列も有料プランもありません。あなたのマシンの限界だけが限界です。
ファイルはどこかに送信される?
いいえ。ファイルはWeb Audio APIでデコードされ、JavaScript製MP3エンコーダーでエンコードされます — すべて端末内で完結。ページは読み込み後オフラインでも動きます。
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