@whereby.com/audio-denoiser

Audio denoiser (noise suppression) for microphone streams.

Wraps the input MediaStream in an AudioWorklet that runs an RNNoise-based WebAssembly model, returning a new MediaStream with the cleaned audio. Static assets (the WASM model and worklet script) are hosted on a CDN and loaded at runtime.

Installation

npm install @whereby.com/audio-denoiser

or

yarn add @whereby.com/audio-denoiser

or

pnpm add @whereby.com/audio-denoiser

Usage

import { applyAudioDenoiser, canUse } from "@whereby.com/audio-denoiser";

if (canUse()) {
    const { outputStream, stop } = await applyAudioDenoiser({
        inputStream: micStream,
        doCaptureException: (err, ctx) => reportError(err, ctx),
    });

    // hand `outputStream` to your RTC pipeline; call `stop()` when done
}

applyAudioDenoiser also returns audioContext and denoiserNode for consumers that need to share the underlying AudioContext (e.g. wiring an audio analyzer onto the same node without creating a second source).

Development

The static assets (WASM model + worklet script) are hosted on a CDN in production builds. To exercise the local copies during development, set the environment variable REACT_APP_IS_DEV=true before building. When unset (or false), the build references the CDN as in production.