Admin at 10:47, 23 February 2011

2011-02-23T10:47:11Z

Admin: Created page with "/* Stereo Splitting & Panning Using the Mozilla Audio Data API by F1LT3R @ http://Bocoup.com */ // This example is illustrative and not enhanced for performance // Create..."

2011-02-23T10:46:52Z

Created page with "‎Stereo Splitting & Panning Using the Mozilla Audio Data API by F1LT3R @ http://Bocoup.com: // This example is illustrative and not enhanced for performance // Create..."

New page

/*
Stereo Splitting & Panning
Using the Mozilla Audio Data API
by F1LT3R @ http://Bocoup.com
*/

// This example is illustrative and not enhanced for performance

// Create a Global pan variable visible to Processing.js Dial Element
var pan = 0;

// Define event in global/"window" scope
var mozAudioAvailable = function(){};

// When the DOM has loaded...
function init(){

// Variable declarations
var inputSamples, outputSamples, i, len,
debug = document.getElementById('debug'),
output = document.createElement('audio'),
panElem = document.getElementById('panFormInput');

// Pull the input signal from the mix
document.getElementById('input').volume = 0;

// Initiate the
output.mozSetup(2, 44100, 1);

// WHEN SOUND HAPPENS.........>
mozAudioAvailable = function mozAudioAvailable(event){

// Alias buffer samples to a more conveinient name
inputSamples = event.frameBuffer;

// Set new length and clear channel data
len = inputSamples.length, outputSamples = [];

// Loop thougt the stereo input data...
for(i=0;i < len; i+=2){

// Copy left channel down via pan value
outputSamples[i] = inputSamples[i] * (1-pan);

// Copy right channel down via pan value
outputSamples[i+1] = inputSamples[i+1] * (1- -pan);
}

// Display 5 samples from each buffer-written-(event at C level)
debug.innerHTML = "";
for(i=0;i<5;i++){
debug.innerHTML += "<b>"+event.time.toFixed(2) + ":</b>  "+ outputSamples[i]+"<br>";
}

// Output mixed samples to <audio> element
output.mozWriteAudio(outputSamples);

};

var input = document.getElementById('input');
//input.volume = 0;
input.addEventListener("MozAudioAvailable", mozAudioAvailable, false);

};

// Call ready event when DOM is loaded
addEventListener('DOMContentLoaded', function(){ init(); }, false);

@@ Line 1: / Line 1: @@
 /*
    Stereo Splitting & Panning
@@ Line 66: / Line 67: @@
 // Call ready event when DOM is loaded
 addEventListener('DOMContentLoaded', function(){ init(); }, false);

Stereo Splitting & Panning - Revision history

Admin at 10:47, 23 February 2011

Admin: Created page with "/* Stereo Splitting & Panning Using the Mozilla Audio Data API by F1LT3R @ http://Bocoup.com */ // This example is illustrative and not enhanced for performance // Create..."