Read raw audio input as a stream of ndsamples
read audio samples as a source pull stream of ndsamples
with npm, do:
npm i --save read-audio
using read-audio
with node
depends on having SoX installed:
brew install sox
sudo apt-get install sox
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
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'
})
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]
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.