Currently, I am utilizing the WEB Audio API within a Webapp to render an Audio Signal. However, I have encountered an issue where Chrome's RAM usage gradually increases as it loads an audio file every second. Unfortunately, I am unsure of how to release buffers/sounds that are no longer needed.
Is there a way to address this problem either through my JavaScript program or by adjusting Chrome properties?
Below is the code snippet:
loadSounds(this, {
buffer: this.url
});
function loadSounds(obj, soundMap, callback) {
// Convert to arrays
var names = [];
var paths = [];
for (var name in soundMap) {
var path = soundMap[name];
names.push(name);
paths.push(path);
}
bufferLoader = new BufferLoader(context, paths, function(bufferList) {
for (var i = 0; i < bufferList.length; i++) {
var buffer = bufferList[i];
var name = names[i];
obj[name] = buffer;
}
if (callback) {
callback();
}
});
bufferLoader.load();
}
function BufferLoader(context, urlList, callback) {
this.context = context;
this.urlList = urlList;
this.onload = callback;
this.bufferList = bufferListG;
this.loadCount = 0;
}
BufferLoader.prototype.load = function() {
for (var i = 0; i < this.urlList.length; ++i)
this.loadBuffer(this.urlList[i], i);
};
BufferLoader.prototype.loadBuffer = function(url, index) {
// Load buffer asynchronously
var request = new XMLHttpRequest();
request.open("GET", url, true);
request.responseType = "arraybuffer";
var loader = this;
request.onload = function() {
// Decode audio file data asynchronously
loader.context.decodeAudioData(
request.response,
function(buffer) {
if (!buffer) {
alert('error decoding file data: ' + url);
return;
}
loader.bufferList[index] = buffer;
if (++loader.loadCount == loader.urlList.length)
loader.onload(loader.bufferList);
},
function(error) {
console.error('decodeAudioData error', error);
}
);
}
request.onerror = function() {
alert('BufferLoader: XHR error');
}
request.send();
};