Skip to content

Instantly share code, notes, and snippets.

@quimbs

quimbs/analyserNode.js

Last active August 29, 2015 14:17
Show Gist options
  • Save quimbs/44f68f011c2c36690f2e to your computer and use it in GitHub Desktop.
Save quimbs/44f68f011c2c36690f2e to your computer and use it in GitHub Desktop.
Download ZIP
Sample of usage of MediaStream as an input to an AnalyserNode in WebAudio API
Raw
analyserNode.js
var analyserAudioNode, sourceAudioNode, micStream;
var streamReceived = function(stream) {
micStream = stream;
analyserAudioNode = audioContext.createAnalyser();
analyserAudioNode.fftSize = 2048;
sourceAudioNode = audioContext.createMediaStreamSource(micStream);
sourceAudioNode.connect(analyserAudioNode);
/* This is our pitch detection algorithm.
You can find its implementation in the Autocorrelation section of this demo. */
detectPitch();
};
navigator.getUserMedia({audio: true}, streamReceived);
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment