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read-audio

read audio samples as a source pull stream of ndsamples

unstable

install

with npm, do:

npm i --save read-audio

using SoX

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

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 MediaStream[0] or AudioNode[1]

0 1

license

The Apache License

Copyright © 2016 Michael Williams

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.