npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@pluzchat/recorderjs

v0.1.0

Published

A plugin for recording/exporting the output of Web Audio API nodes

Downloads

2

Readme

Recorder.js

A plugin for recording/exporting the output of Web Audio API nodes

Note: This repository is not being actively maintained due to lack of time and interest. If you maintain or know of a good fork, please let me know so I can direct future visitors to it. In the meantime, if this library isn't working, you can find a list of popular forks here: http://forked.yannick.io/mattdiamond/recorderjs.

My sincerest apologies to the open source community for allowing this project to stagnate. I hope it was useful for some of you as a jumping-off point.


Syntax

Constructor

var rec = new Recorder(source [, config])

Creates a recorder instance.

  • source - The node whose output you wish to capture
  • config - (optional) A configuration object (see config section below)

Config

  • workerPath - Path to recorder.js worker script. Defaults to 'js/recorderjs/recorderWorker.js'
  • bufferLen - The length of the buffer that the internal JavaScriptNode uses to capture the audio. Can be tweaked if experiencing performance issues. Defaults to 4096.
  • callback - A default callback to be used with exportWAV.
  • type - The type of the Blob generated by exportWAV. Defaults to 'audio/wav'.

Instance Methods

rec.record()
rec.stop()

Pretty self-explanatory... record will begin capturing audio and stop will cease capturing audio. Subsequent calls to record will add to the current recording.

rec.clear()

This will clear the recording.

rec.exportWAV([callback][, type])

This will generate a Blob object containing the recording in WAV format. The callback will be called with the Blob as its sole argument. If a callback is not specified, the default callback (as defined in the config) will be used. If no default has been set, an error will be thrown.

In addition, you may specify the type of Blob to be returned (defaults to 'audio/wav').

rec.getBuffer([callback])

This will pass the recorded stereo buffer (as an array of two Float32Arrays, for the separate left and right channels) to the callback. It can be played back by creating a new source buffer and setting these buffers as the separate channel data:

function getBufferCallback( buffers ) {
	var newSource = audioContext.createBufferSource();
	var newBuffer = audioContext.createBuffer( 2, buffers[0].length, audioContext.sampleRate );
	newBuffer.getChannelData(0).set(buffers[0]);
	newBuffer.getChannelData(1).set(buffers[1]);
	newSource.buffer = newBuffer;

	newSource.connect( audioContext.destination );
	newSource.start(0);
}

This sample code will play back the stereo buffer.

rec.configure(config)

This will set the configuration for Recorder by passing in a config object.

Utility Methods (static)

Recorder.forceDownload(blob[, filename])

This method will force a download using the new anchor link download attribute. Filename defaults to 'output.wav'.

License (MIT)

Copyright © 2013 Matt Diamond

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.