Read-audio NPM

read-audio

read audio samples as a source pull 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 pull = require('pull-stream')
var terminalBar = require('terminal-bar')

pull(
  readAudio(),
  pull.map(function (arr, enc, cb) {
    var data = [].slice.call(arr.data, 0, 128)
    return terminalBar(data) + "\n"
  }),
  pull.drain(function (str) {
    process.stdout.write(str)
  })
)

(To run this example you will need:)

npm install --save pull-stream
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 MediaStream0 or AudioNode1

0 1

license

The Apache License

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.