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Noise Reducer

Reduce hiss and hum with a short before and after preview.

Apply a short denoise preview, compare Before and After, then export the full file with ffmpeg afftdn.

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You can also drop a file here.

Output
Awaiting output.

Status

What Noise Reducer does

Noise Reducer softens steady hiss and hum with ffmpeg afftdn. Set strength, Apply a short preview, then toggle Before and After.

Export runs the same filter on the full file locally.

How to use it

  1. Choose an audio file.
  2. Set Strength and Apply preview for a short clip.
  3. Toggle Before / After, then Export full file as MP3 or WAV.

Formats and limits

  • Opens common audio files.
  • Exports MP3 or WAV.

Settings explained

Strength
How aggressively afftdn lowers the noise floor.

Privacy

Processing stays in this tab. Nothing is uploaded.

FAQ

What if Apply fails?

The bundled ffmpeg core must include afftdn. If the filter is missing, update the core build before this tool can denoise.

Related tools

All processing runs locally in your browser. This tool is provided as-is without warranty. Keep backups of your original files before processing.

By uploading media, you confirm you own the content or have permission to modify it. Please read the Terms and Conditions.