Information

Package	microphone
Description	microphone is a simple module that use `arecord` ALSA tools on Linux or SoX on OSX & Windows method to capture sound from a USB Microphone

Dependencies

This library need

• ALSA tools installed on the machine (sudo apt-get install alsa-utils) for Linux
• SoX Tools installed on the machine for Windows or OSX

Usage

Simple example

A simple example which capture sound and redirect it to stdout.

var mic = require('microphone');

mic.startCapture();

mic.audioStream.on('data', function(data) {
    process.stdout.write(data);
});

API

startCapture(options)

Start the process and pipe the stdout of ALSA arecord tool to audioStream

By default, the outputing sound are PCM WAVE format, if you want a MP3 format pass true as mp3Output in the options passed in arguments.

(Example : mic.startCapture({'mp3output' : true});)

stopCapture();

Stop the process

audioStream

Give the audio stream where sound captured will be pushed

infoStream

Give an information stream which display informations printed on stderr by the process

CONTRIBUTORS

• @JiaJian (for Windows support)
• @guileen (for OSX support)
• @jrf0110

LICENSE

(MIT License)

Copyright (c) 2012 Vincent Saluzzo vincentsaluzzo@me.com

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.