@audio/wav-encode

Encode PCM audio samples to WAV format. Pure JS — no WASM, no native bindings, works in both node and browser.

import wav from '@audio/wav-encode';

const encoder = await wav({ sampleRate: 44100 });
encoder.encode(channelData);    // buffer PCM
const buffer = encoder.flush(); // → complete WAV file as Uint8Array

Options

| Option | Default | Description | |--------|---------|-------------| | sampleRate | — | Sample rate (required) | | bitDepth | 16 | 16 (PCM int) or 32 (IEEE float) |

Streaming

const encoder = await wav({ sampleRate: 44100, bitDepth: 16 });
encoder.encode(chunk1); // buffer chunk
encoder.encode(chunk2); // buffer chunk
const file = encoder.flush(); // → Uint8Array (complete WAV)
encoder.free();

Input is Float32Array[] — one array per channel. Channels are interleaved automatically.

License

MIT

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