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オーディオコンプレッサー

しきい値、ニー、比率、アタック、リリースを調整して音声にダイナミクス圧縮を適用します。

upload_file

クリックして選択 またはここにファイルをドラッグ&ドロップ

音声ファイルを選択(MP3、WAV、OGG、AAC…)

対応形式: audio/*

関連ツール

MP3 to WAV Converter

MP3 to WAV Converter

Convert MP3 audio files to uncompressed 16-bit WAV in your browser. Fully private, no upload required.

WAV to MP3 Converter

WAV to MP3 Converter

Convert WAV audio files to MP3 directly in your browser. Adjustable bitrate from 64 to 320 kbps. Fully private.

オーディオ変換

オーディオ変換

音声ファイル(MP3、OGG、AAC、FLAC)を、サンプルレートやモノラル/ステレオ設定付きで WAV に変換します。

動画から MP3

動画から MP3

動画ファイルから音声を抽出し、波形表示付きで WAV として書き出します。

画像切り抜き

画像切り抜き

ブラウザで素早く画像をクロップします。

JSONからXMLへ

JSONからXMLへ

JSON データを XML に変換します。

CSS 変数生成ツール

CSS 変数生成ツール

カラーやデザイン寸法用の CSS カスタムプロパティ(変数)を生成します。

apps

もっと見る

無料オンラインツールの全コレクションを見る。

Audio Dynamics 圧縮or

Dynamics 圧縮ion is a cornerstone audio processing technique that evens out volume levels automatically. Instead of manually adjusting volume throughout a recording, 圧縮ion reduces peaks when audio gets too loud while leaving quieter portions untouched, creating a more polished, consistent sound.

Essential for professional audio

Podcasts sound more broadcast-ready with 圧縮ion evening out speaker dynamics, vocals in music blend more smoothly, and dialogue in videos maintains consistent loudness. 圧縮ion is invisible when done well—listeners don't hear it working, they just hear more professional, controlled audio. Recording engineers use 圧縮ion on nearly every track during mixing.

Full parameter control

Unlike simple gain adjustment, this tool provides professional-grade 圧縮ion parameters. Threshold sets the level above which 圧縮ion activates, ratio determines how much the audio gets reduced (4:1 ratio means 4 dB above threshold gets reduced to 1 dB), and knee controls whether 圧縮ion engages abruptly or gradually. Attack and release times determine how quickly 圧縮ion responds to audio changes, crucial for different source material.

Visualize your audio

See the waveform before 圧縮ion to understand what you're working with, then apply settings and hear results immediately. Real-time feedback helps you dial in settings that actually improve your audio without over-圧縮ing.

Common settings

Light 圧縮ion with 2:1 ratio and 40 ms attack/release sounds natural and transparent, while aggressive 圧縮ion with 6:1+ ratio and fast attack/release 作成s obvious reduction suitable for creative effects or extreme loudness control. The tool supports the full range, letting you experiment and find settings that work for your material.

Broadcast loudness standards

Broadcasters and streaming platforms often require content at specific loudness levels. 圧縮ion is the standard technique for hitting these targets without peak clipping. Music producers use 圧縮ion to glue tracks together, podcasters normalize volume inconsistencies, and voiceover artists use it to maintain consistent delivery across takes.

Lossless processing

圧縮ion is applied perfectly in the ブラウザ, exported as high-quality 16-bit WAV, and ready for further editing, distribution, or immediate use.