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hark.bundle.js
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hark.bundle.js
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(function(e){if("function"==typeof bootstrap)bootstrap("hark",e);else if("object"==typeof exports)module.exports=e();else if("function"==typeof define&&define.amd)define(e);else if("undefined"!=typeof ses){if(!ses.ok())return;ses.makeHark=e}else"undefined"!=typeof window?window.hark=e():global.hark=e()})(function(){var define,ses,bootstrap,module,exports;
return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
var WildEmitter = require('wildemitter');
function getMaxVolume (analyser, fftBins) {
var maxVolume = -Infinity;
analyser.getFloatFrequencyData(fftBins);
for(var i=0, ii=fftBins.length; i < ii; i++) {
if (fftBins[i] > maxVolume && fftBins[i] < 0) {
maxVolume = fftBins[i];
}
};
return maxVolume;
}
module.exports = function(stream, options) {
var harker = new WildEmitter();
var audioContextType = window.webkitAudioContext || window.AudioContext;
// make it not break in non-supported browsers
if (!audioContextType) return harker;
//Config
var options = options || {},
smoothing = (options.smoothing || 0.5),
interval = (options.interval || 100),
threshold = options.threshold,
play = options.play;
//Setup Audio Context
var audioContext = new audioContextType();
var sourceNode, fftBins, analyser;
analyser = audioContext.createAnalyser();
analyser.fftSize = 512;
analyser.smoothingTimeConstant = smoothing;
fftBins = new Float32Array(analyser.fftSize);
if (stream.jquery) stream = stream[0];
if (stream instanceof HTMLAudioElement) {
//Audio Tag
sourceNode = audioContext.createMediaElementSource(stream);
if (typeof play === 'undefined') play = true;
threshold = threshold || -65;
} else {
//WebRTC Stream
sourceNode = audioContext.createMediaStreamSource(stream);
threshold = threshold || -45;
}
sourceNode.connect(analyser);
if (play) analyser.connect(audioContext.destination);
harker.speaking = false;
harker.setThreshold = function(t) {
threshold = t;
};
harker.setInterval = function(i) {
interval = i;
};
// Poll the analyser node to determine if speaking
// and emit events if changed
var looper = function() {
setTimeout(function() {
var currentVolume = getMaxVolume(analyser, fftBins);
harker.emit('volume_change', currentVolume, threshold);
if (currentVolume > threshold) {
if (!harker.speaking) {
harker.speaking = true;
harker.emit('speaking');
}
} else {
if (harker.speaking) {
harker.speaking = false;
harker.emit('stopped_speaking');
}
}
looper();
}, interval);
};
looper();
return harker;
}
},{"wildemitter":2}],2:[function(require,module,exports){
/*
WildEmitter.js is a slim little event emitter by @henrikjoreteg largely based
on @visionmedia's Emitter from UI Kit.
Why? I wanted it standalone.
I also wanted support for wildcard emitters like this:
emitter.on('*', function (eventName, other, event, payloads) {
});
emitter.on('somenamespace*', function (eventName, payloads) {
});
Please note that callbacks triggered by wildcard registered events also get
the event name as the first argument.
*/
module.exports = WildEmitter;
function WildEmitter() {
this.callbacks = {};
}
// Listen on the given `event` with `fn`. Store a group name if present.
WildEmitter.prototype.on = function (event, groupName, fn) {
var hasGroup = (arguments.length === 3),
group = hasGroup ? arguments[1] : undefined,
func = hasGroup ? arguments[2] : arguments[1];
func._groupName = group;
(this.callbacks[event] = this.callbacks[event] || []).push(func);
return this;
};
// Adds an `event` listener that will be invoked a single
// time then automatically removed.
WildEmitter.prototype.once = function (event, groupName, fn) {
var self = this,
hasGroup = (arguments.length === 3),
group = hasGroup ? arguments[1] : undefined,
func = hasGroup ? arguments[2] : arguments[1];
function on() {
self.off(event, on);
func.apply(this, arguments);
}
this.on(event, group, on);
return this;
};
// Unbinds an entire group
WildEmitter.prototype.releaseGroup = function (groupName) {
var item, i, len, handlers;
for (item in this.callbacks) {
handlers = this.callbacks[item];
for (i = 0, len = handlers.length; i < len; i++) {
if (handlers[i]._groupName === groupName) {
//console.log('removing');
// remove it and shorten the array we're looping through
handlers.splice(i, 1);
i--;
len--;
}
}
}
return this;
};
// Remove the given callback for `event` or all
// registered callbacks.
WildEmitter.prototype.off = function (event, fn) {
var callbacks = this.callbacks[event],
i;
if (!callbacks) return this;
// remove all handlers
if (arguments.length === 1) {
delete this.callbacks[event];
return this;
}
// remove specific handler
i = callbacks.indexOf(fn);
callbacks.splice(i, 1);
return this;
};
// Emit `event` with the given args.
// also calls any `*` handlers
WildEmitter.prototype.emit = function (event) {
var args = [].slice.call(arguments, 1),
callbacks = this.callbacks[event],
specialCallbacks = this.getWildcardCallbacks(event),
i,
len,
item;
if (callbacks) {
for (i = 0, len = callbacks.length; i < len; ++i) {
if (callbacks[i]) {
callbacks[i].apply(this, args);
} else {
break;
}
}
}
if (specialCallbacks) {
for (i = 0, len = specialCallbacks.length; i < len; ++i) {
if (specialCallbacks[i]) {
specialCallbacks[i].apply(this, [event].concat(args));
} else {
break;
}
}
}
return this;
};
// Helper for for finding special wildcard event handlers that match the event
WildEmitter.prototype.getWildcardCallbacks = function (eventName) {
var item,
split,
result = [];
for (item in this.callbacks) {
split = item.split('*');
if (item === '*' || (split.length === 2 && eventName.slice(0, split[1].length) === split[1])) {
result = result.concat(this.callbacks[item]);
}
}
return result;
};
},{}]},{},[1])
(1)
});
;