Audio Noise Reducer
Effectively reduce background noise with 4 presets and custom settings
ノイズ除去
ファイルをドラッグ＆ドロップ
プリセット
カスタム設定
出力形式
About Audio Noise Reducer
The Audio Noise Reducer is a dedicated online tool for reducing unwanted background noise from audio files. Using multi-stage filter processing that combines high-pass filters (removing low-frequency rumble), low-pass filters (removing high-frequency hiss), and notch filters (removing 50Hz/60Hz power line hum), along with a soft gate effect via dynamics compressor, it selectively removes noise while preserving important audio components like voice and instrument sounds. The Voice Optimized preset provides settings specifically tuned for the voice frequency band, significantly improving audio quality for podcasts and interview recordings.
The volume boost feature lets you adjust audio level from -12 to +12 dB after noise reduction, ensuring clear and comfortable listening. You can choose between MP3 (compressed) and WAV (lossless) output formats — use MP3 for distribution and WAV for editing and mastering, depending on your workflow. All processing runs via Web Audio API in the browser, so your audio data is never sent to a server, ensuring complete privacy protection. No software installation, user registration, or subscription required — completely free to use.
How to use Audio Noise Reducer
- Upload your audio file (MP3, WAV, M4A, etc.) by dragging and dropping or clicking to browse.
- Click a preset button (Light, Medium, Heavy, Voice Optimized) or use the custom sliders to freely adjust noise reduction strength and smoothing.
- Use the Preview button to listen to the noise reduction effect in real time and confirm the sound quality.
- Click the Apply Noise Reduction & Download button to download an MP3 file with background noise removed.
Benefits of Audio Noise Reducer
- One-click noise reduction with 4 curated presets — Apply optimal noise reduction settings instantly without any audio engineering expertise.
- Voice Optimized preset for crystal-clear speech — Achieve clear audio quality with settings specifically tuned for podcasts, interviews, and meeting recordings.
- Volume boost feature for comfortable listening — Adjust audio level after noise reduction to achieve optimal listening experience.
- Support for both MP3 and WAV formats — Choose between compressed MP3 for distribution and lossless WAV for editing, adapting flexibly to your workflow.
- Real-time preview for instant confirmation — Listen to the noise reduction effect before downloading, so you can refine until satisfied.
- Safe and fast browser-based processing — Files are never uploaded to a server; all processing happens locally in your browser for complete privacy.
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