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Audio tool

Voice Enhancer

Reduce background noise in short speech recordings with a 25% or 50% blend, then download a checked WAV. Every step runs in your browser.

Quality is not guaranteed and results have not been independently listened to. This tool cannot repair unclear words, clipping or heavy room echo, and 25% is the recommended starting point.

Choose or drop an audio recording

or drop an audio file here

WAV, MP3 and other audio your browser can decode · one or two channels. Processing starts automatically. New input replaces the previous result.

Longer recordings use substantial device memory. Mobile and low-memory devices are unverified; use a shorter clip if processing fails.

Choose a short speech recording

Enhancement strength

The optional 50% setting can attenuate speech, breaths, laughter, music and other expressive sounds. Review the actual download before sharing it.

Tested on Windows desktop Chrome and Edge. Firefox, Safari and other devices remain untested. Your recording stays on this device; the local speech model is downloaded once and cached by your browser. Offline retry, cold opening and reload are not guaranteed.

Model and third-party license notices
What it does

Clean up a recording without uploading it

Voice Enhancer reduces steady background noise such as fans, hum and room hiss in short speech recordings. The GTCRN model runs locally through WebAssembly, so nothing is sent to a server and the file stays on your device.

How to use it

Enhance a recording in three steps

  1. Choose or drop a WAV or MP3 recording under two minutes.
  2. Compare your original against the 25% result, then try 50% if you want a stronger effect.
  3. Download the verified WAV once the header, duration, channel and sample checks have passed.
Helpful answers

Voice Enhancer FAQs

Is my audio uploaded anywhere?

No. Decoding, noise reduction, WAV export and the output checks all run inside your browser using WebAssembly and a Web Worker. Your recording never leaves your device. The speech model itself is downloaded once from this site and then cached by your browser.

Which browsers work?

Voice Enhancer has been tested on Windows desktop Chrome and Edge. Firefox, Safari, and mobile devices are untested, and the page shows a warning instead of blocking them. Processing is memory-heavy, so on a low-memory device a shorter clip may be needed.

What is the difference between 25% and 50%?

25% is the recommended, conservative blend. The optional 50% setting removes more noise but can also attenuate speech, breaths, laughter, music and other expressive sounds. There is no 100% setting. Always review the download before sharing it.

What format do I get, and is the quality guaranteed?

You get a PCM16 WAV at the input sample rate. The model works internally at 16 kHz, so exporting at 48 kHz does not restore detail the model discarded. Quality is not guaranteed and results have not been independently listened to. The tool cannot repair unclear words, clipping, or heavy room echo.

How large can my recording be?

Up to 120 seconds and 25 MiB, in WAV, MP3, or another format your browser can decode, with one or two channels. Processing uses substantial device memory, so shorter clips are safer.