opendawn/read-audio

:microphone: Read raw audio input as a stream of ndsamples

read-audio

read audio samples as a stream of ndsamples

install

with npm, do:

npm i --save read-audio

using SoX

using read-audio with node depends on having SoX installed:

• on Mac OS X, do brew install sox
• on Debian-based Linux distros (e.g. Ubuntu), do sudo apt-get install sox

example

var readAudio = require('read-audio')
var through = require('through2')
var terminalBar = require('terminal-bar')

var audio = readAudio()
.pipe(through.obj(function (arr, enc, cb) {
  var data = [].slice.call(arr.data).slice(0, 128)
  cb(null, terminalBar(data) + "\n")
}))
.pipe(process.stdout)

(To run this example you will need:)

npm install --save through2
npm install --save terminal-bar

api

using node

var audio = readAudio({
  buffer: 1024,
  inFile: '-d', // '-d' is default device
  channels: 2,
  rate: 44000,
  dtype: 'int32',
    // int8, uint8, int16, uint16,
    // int32, uint32, float32, float64
    // also supported
  soxPath: 'sox'
})

using browserify

npm install --save getusermedia

getUserMedia({
  video: false,
  audio: true
}, function (err, media) {
  if (err) { throw err }

  var audio = readAudio({
    source: media,
    buffer: 1024,
    channels: 2,
})

source can be either MediaStream[0] or AudioNode[1]

0 1

license

ISC