├── .npmignore
├── .gitignore
├── package.json
├── index.js
└── README.md


/.npmignore:
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1 | .nide
2 | 


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/.gitignore:
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1 | .nide
2 | node_modules/


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/package.json:
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 1 | {
 2 |   "name": "microphone",
 3 |   "description": "microphone is a simple module that use `arecord` ALSA tools method to capture sound from a USB Microphone",
 4 |   "version": "1.0.8",
 5 |   "author": "Vincent Saluzzo",
 6 |   "contributors": [
 7 |     {
 8 |       "name": "JiaJian",
 9 |       "email": "its@jiajian.me"
10 |     }
11 |   ],
12 |   "dependencies": {
13 |     "lame": "1.0.3"
14 |   },
15 |   "devDependencies": {},
16 |   "homepage": "http://github.com/vincentsaluzzo/node-microphone",
17 |   "keywords": [
18 |     "microphone",
19 |     "alsa",
20 |     "mic",
21 |     "record",
22 |     "audio",
23 |     "capture"
24 |   ],
25 |   "repository": {
26 |     "type": "git",
27 |     "url": "https://github.com/vincentsaluzzo/node-microphone.git"
28 |   },
29 |   "bugs": "http://github.com/vincentsaluzzo/node-microphone/issues"
30 | }
31 | 


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/index.js:
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 1 | var isMacOrWin = require('os').type() == 'Darwin' || require('os').type().indexOf('Windows') > -1;
 2 | var spawn = require('child_process').spawn
 3 | var PassThrough = require('stream').PassThrough;
 4 | var lame = require('lame');
 5 | 
 6 | var ps = null;
 7 | 
 8 | var audio = new PassThrough;
 9 | var info = new PassThrough;
10 | 
11 | var start = function(options) {
12 |     options = options || {};
13 |     
14 |     if(ps == null) {
15 |         ps = isMacOrWin
16 |         ? spawn('sox', ['-d', '-t', 'dat', '-p'])
17 |         : spawn('arecord', ['-D', 'plughw:1,0', '-f', 'dat']);
18 | 
19 |         if(options.mp3output === true) {
20 |             var encoder = new lame.Encoder( {
21 |                 channels: 2,
22 |                 bitDepth: 16,
23 |                 sampleRate: 44100
24 |             });
25 | 
26 |             ps.stdout.pipe(encoder);
27 |             encoder.pipe(audio);
28 |             ps.stderr.pipe(info);
29 | 
30 |         } else {
31 |             ps.stdout.pipe(audio);
32 |             ps.stderr.pipe(info);
33 | 
34 |         }
35 |     }
36 | };
37 | 
38 | var stop = function() {
39 |     if(ps) {
40 |         ps.kill();
41 |         ps = null;
42 |     }
43 | };
44 | 
45 | exports.audioStream = audio;
46 | exports.infoStream = info;
47 | exports.startCapture = start;
48 | exports.stopCapture = stop;
49 | 


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/README.md:
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 1 | ## Information
 2 | 
 3 | <table>
 4 | <tr> 
 5 | <td>Package</td><td>microphone</td>
 6 | </tr>
 7 | <tr>
 8 | <td>Description</td>
 9 | <td>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</td>
10 | </tr>
11 | </table>
12 | 
13 | ## Dependencies
14 | 
15 | This library need
16 | 
17 | * ALSA tools installed on the machine (`sudo apt-get install alsa-utils`) **for Linux**
18 | * SoX Tools installed on the machine **for Windows or OSX**
19 | 
20 | ## Usage
21 | 
22 | #### Simple example
23 | 
24 | A simple example which capture sound and redirect it to stdout.
25 | 
26 |     var mic = require('microphone');
27 |     
28 |     mic.startCapture();
29 |     
30 |     mic.audioStream.on('data', function(data) {
31 |         process.stdout.write(data);
32 |     });
33 | 
34 | ## API
35 | 
36 | #### startCapture(options)
37 | 
38 | Start the process and pipe the stdout of ALSA `arecord` tool to audioStream
39 | 
40 | By default, the outputing sound are PCM WAVE format, if you want a MP3 format 
41 | pass `true` as `mp3Output` in the options passed in arguments. 
42 | 
43 | (Example : `mic.startCapture({'mp3output' : true});`)
44 | 
45 | #### stopCapture();
46 | 
47 | Stop the process 
48 | 
49 | #### audioStream
50 | 
51 | Give the audio stream where sound captured will be pushed
52 | 
53 | #### infoStream
54 | 
55 | Give an information stream which display informations printed on `stderr` by the process
56 | 
57 | ## CONTRIBUTORS
58 | 
59 | * @JiaJian *(for Windows support)*
60 | * @guileen *(for OSX support)*
61 | * @jrf0110
62 | 
63 | 
64 | ## LICENSE
65 | 
66 | (MIT License)
67 | 
68 | Copyright (c) 2012 Vincent Saluzzo <vincentsaluzzo@me.com>
69 | 
70 | Permission is hereby granted, free of charge, to any person obtaining
71 | a copy of this software and associated documentation files (the
72 | "Software"), to deal in the Software without restriction, including
73 | without limitation the rights to use, copy, modify, merge, publish,
74 | distribute, sublicense, and/or sell copies of the Software, and to
75 | permit persons to whom the Software is furnished to do so, subject to
76 | the following conditions:
77 | 
78 | The above copyright notice and this permission notice shall be
79 | included in all copies or substantial portions of the Software.
80 | 
81 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
82 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
83 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
84 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
85 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
86 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
87 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


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