https://github.com/jamen/pull-audio-generator

https://github.com/jamen/pull-audio-generator

Last synced: 17 days ago
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• Host: GitHub
• URL: https://github.com/jamen/pull-audio-generator
• Owner: jamen
• License: mit
• Created: 2017-05-14T23:09:50.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2017-05-14T23:13:07.000Z (over 7 years ago)
• Last Synced: 2024-10-25T19:36:59.584Z (19 days ago)
• Language: JavaScript
• Size: 5.86 KB
• Stars: 2
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: LICENSE

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README

        

# pull-audio-generator

> Generate audio as a pull-stream source

Creates [`AudioBuffer`](https://github.com/audiojs/audio-buffer)s using a function that returns samples between `-1..1`.  Also takes options to configure the stream and generated audio.

```js

pull(

  generator(Math.random, {

    duration: Infinity,

    bitDepth: 8,

    // ...

  }),

  drain(buf => {

    // got chunk

  })

)

```

## Install

```sh

npm install --save pull-audio-generator

```

```sh

yarn add pull-audio-generator

```

## Usage

### `generator(fn, options?)`

A [pull-stream source](https://github.com/pull-stream/pull-stream) that produces `AudioBuffer`s from `fn` and `options`.  All options are inherited from [`audio-generator`'s options](https://github.com/audiojs/audio-generator).

The `fn` takes `fn(time)` and returns `-1..1` for all channels or `[-1..1, -1..1, ...]` for each channel.

```js

pull(

  generate(time => {

    return [

      // Channel 1:

      Math.sin(Math.PI * 2 * time * 300),

      // Channel 2:

      Math.random()

    ]

  }),

  drain(buf => {

    // got chunk

  })

)

```

## Also see

 - [`audiojs`](https://github.com/audiojs) for all the audio components

 - [`pull-stream`](https://github.com/pull-stream/pull-stream) for minimal streams

 - [`audio-generator`](https://github.com/audiojs/audio-generator) for pure function of this module