AudioMaster Audio File Editor
🙋 リクエスト:
山田太郎
App screen preview
Overview
A professional-grade tool for editing audio files entirely in your browser. Import major formats including MP3/WAV/M4A/OGG, then select ranges on the waveform to trim, adjust volume, apply fade in/out, normalize, use a 3-band EQ, change pitch/speed, add reverb, apply a noise gate, merge other files, remove noise with FFT spectral subtraction, edit MP3 tags (ID3v2), apply soft-clip master limiting, detect silence and auto-split, and play A/B loops. Zoom with the mouse wheel and edit efficiently with a rich set of keyboard shortcuts. Export as WAV (16-bit PCM). All processing runs entirely in the browser via the Web Audio API, so your files are never sent anywhere.
Key Features
- Drag & drop audio file loading (major formats including MP3/WAV/M4A/OGG/FLAC)
- Waveform visualization (Canvas, with zoom support)
- Play, pause, stop, and seek (click the waveform to jump)
- Trim by range selection (start/end markers)
- Volume adjustment (gain slider with real-time preview)
- Fade in and fade out (specify duration in seconds)
- Normalize (align peak level to a specified dBFS)
- [v1.1] 3-band EQ (low 250Hz / mid 1.5kHz / high 5kHz, ±18dB, works on selected range)
- [v1.1] Pitch/speed change (±12 semitones, selected range or entire file)
- [v1.1] Convolution reverb (decay 0.1–3.0 sec, wet 0–100%)
- [v1.2] Noise gate (adjustable threshold/attenuation/attack/release, works on selected range)
- [v1.2] Merge another file (append to the end or insert at the selected position, with crossfade, automatic sample rate/channel conversion)
- [v1.3] FFT spectral subtraction noise removal (select a noise section → build a profile → apply to the whole file, with adjustable spectral floor and subtraction ratio)
- [v1.3] ID3v2 metadata view and edit (edit MP3 title/artist/album/year/track/genre/comment, write back to the original MP3 and download)
- [v1.3] Master limiter (tanh soft clip; specify the maximum output peak in dBFS to gently tame overshoot)
- [v1.4] Silence detection and auto-split (divide the waveform by threshold dBFS and minimum silence length; view detected segments in a list and download each as WAV)
- [v1.4] A/B loop playback (repeat the selected range, toggle with a button or the L key)
- [v1.4] Mouse wheel zoom + drag to scroll (improved waveform UX, Shift+wheel for horizontal scrolling)
- [v1.4] Rich keyboard shortcuts (Space / Home / End / ← → / Delete / +/- / L / ? and more, listed in a help modal)
- Download and save as WAV (16-bit PCM)
- Undo and redo (up to 10 steps)
- Professional dark UI (accent colors: cyan/orange)
- Responsive design (phone portrait / tablet / wide desktop)
- Fully browser-based (files are never sent externally)
Setup Steps
- Create an account on AI App Lab (if you haven't)
- Download
installer.phpfrom your dashboard - Upload to your server's public directory and run it
- Enter API token → select this app → enter DB info → done
📚 Version History
Showing the current version only. See all versions (5) →
v1.4.0
Current
無音検出と自動分割を追加 (しきい値 dBFS と最小無音長を指定して波形を区切り、検出されたセグメントを一覧表示。各セグメントを個別 WAV としてダウンロード可能で、長い録音をトラックに分割するのに最適)。A/B ループ再生を追加 (選択範囲を指定して繰り返し再生。フレーズ練習や微編集の確認に便利、ボタンまたは L キーで ON/OFF)。マウスホイールでズームイン/アウト、ドラッグで波形をスクロール (拡大時の操作性が大幅に向上)。豊富なキーボードショートカット (Space=再生/一時停止、Home/End=端へ移動、← →=シーク、+/-=ズーム、Delete=選択をカット、L=ループ、? でショートカット一覧モーダルを表示)。
🔒 Log in and a license are required to download
