wav-encoder


> promise-based wav encoder

Installation

``
$ npm install wav-encoder
`

API

- encode(audioData: AudioData, [opts: object]): Promise
- audioData should contain two fields sampleRate and channelData.
- opts is an optional parameter which used to design the output wav format.
- opts.bitDepth the number of bits of information in each sample
- opts.float encode to float values
- opts.symmetric encode to symmetrical values (see #10)
- The default format is { float: false, bitDepth: 16 }
- encode.sync(audioData: AudioData, [opts: object]): ArrayBuffer
- synchronous version

`js
interface AudioData {
sampleRate: number;
channelData: Float32Array[];
}
`

Usage

`js
const fs = require("fs");
const WavEncoder = require("wav-encoder");

const whiteNoise1sec = {
sampleRate: 44100,
channelData: [
new Float32Array(44100).map(() => Math.random() - 0.5),
new Float32Array(44100).map(() => Math.random() - 0.5)
]
};

WavEncoder.encode(whiteNoise1sec).then((buffer) => {
fs.writeFileSync("noise.wav", new Buffer(buffer));
});
``

License

MIT