sono/dist/sono.min.js

A simple yet powerful JavaScript library for working with Web Audio

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Rt=navigator&&/Firefox/i.test(navigator.userAgent),Dt=void 0,jt={getOfflineContext:w,cloneBuffer:x,reverseBuffer:T,ramp:O,getFrequency:S,timeCode:L},Ft=function(e){function t(n){bt(this,t);var r=xt(this,e.call(this));return r.id=n.id||null,r._context=n.context||_t,r._destination=n.destination||r._context.destination,r._effects=new Tt(r._context),r._gain=r._context.createGain(),r._config=n,r._data=null,r._fadeTimeout=null,r._isTouchLocked=!1,r._loader=null,r._loop=!1,r._offset=0,r._playbackRate=1,r._playWhenReady=null,r._source=null,r._wave=null,r._userData={},r._effects.setDestination(r._gain),r._gain.connect(r._destination),r._onEnded=r._onEnded.bind(r),r._onLoad=r._onLoad.bind(r),r._onLoadError=r._onLoadError.bind(r),r}return wt(t,e),t.prototype.prepare=function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null,t=arguments.length>1&&void 0!==arguments[1]&&arguments[1],n=!t&&!this._source&&!!this._config.deferLoad;if(e){var r=Mt.getSrc(e),o=Mt.getSupportedFile(r)||this._config.src;this._config=Object.assign(this._config,e,{src:o})}return this._source&&this._data&&this._data.tagName?this._source.load(this._config.src):(this._loader=new m(this._config.src,n),this._loader.audioContext=this._config.asMediaElement||this._context.isFake?null:this._context,this._loader.isTouchLocked=this._isTouchLocked,this._loader.once("loaded",this._onLoad),this._loader.once("error",this._onLoadError)),this},t.prototype.load=function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null;return this.stop(),this._source=null,!e||Mt.containsURL(e)?(this._loader&&this._loader.destroy(),this.prepare(e,!0),this._loader.start()):this.data=e.data||e,this},t.prototype.play=function(e,t){var n=this;return!this._source||this._isTouchLocked?(this._playWhenReady=function(){n._source&&n.play(e,t)},this._config.deferLoad&&(this._loader||this.prepare(null,!0),this._loader.start(!0)),this):(this._playWhenReady=null,this._effects.setSource(this._source.sourceNode),this._offset&&void 0===t&&(t=this._offset,this._offset=0),this._source.play(e,t),this._source.hasOwnProperty("volume")&&(this._source.volume=this._gain.gain.value),this._source.hasOwnProperty("loop")&&(this._source.loop=this._loop),this.emit("play",this),this)},t.prototype.pause=function(){return this._source&&this._source.pause(),this.emit("pause",this),this},t.prototype.stop=function(e){return this._source&&this._source.stop(e||0),this.emit("stop",this),this},t.prototype.seek=function(e){return this.currentTime=e,this},t.prototype.fade=function(e){var t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:1;if(!this._source)return this;var n=this._gain.gain;if(!this._context||this._context.isFake||Rt)this._fadePolyfill(e,t);else{var r=this._context.currentTime;n.cancelScheduledValues(r),n.setValueAtTime(n.value,r),n.linearRampToValueAtTime(e,r+t)}return this.emit("fade",this,e),this},t.prototype._fadePolyfill=function(e,t){var n=this;return window.clearTimeout(this._fadeTimeout),function e(t,r){n._fadeTimeout=window.setTimeout(function(){if(n.volume=n.volume+.2*(t-n.volume),Math.abs(n.volume-t)>.05)return void e(t,r);n.volume=t},1e3*r)}(e,t/10),this},t.prototype.unload=function(){this._source&&this._source.destroy(),this._loader&&this._loader.destroy(),this._data=null,this._playWhenReady=null,this._source=null,this._loader=null,this._config.deferLoad=!0,this.emit("unload",this)},t.prototype.reload=function(){return this.load(null,!0)},t.prototype.destroy=function(){this._source&&this._source.destroy(),this._effects&&this._effects.destroy(),this._gain&&this._gain.disconnect(),this._loader&&(this._loader.off("loaded"),this._loader.off("error"),this._loader.destroy()),this._gain=null,this._context=null,this._destination=null,this._data=null,this._playWhenReady=null,this._source=null,this._effects=null,this._loader=null,this._config=null,this.emit("destroy",this),this.off()},t.prototype.waveform=function(e){var t=this;return this._wave||(this._wave=jt.waveform()),this._data||this.once("ready",function(){return t._wave(t._data,e)}),this._wave(this._data,e)},t.prototype._createSource=function(e){var t=Mt.isAudioBuffer(e);if(t||Mt.isMediaElement(e)){var n=t?k:A;this._source=new M(n,e,this._context,this._onEnded),this._source.singlePlay=!!this._config.singlePlay,this._source.playbackRate=this._playbackRate,this._source.currentTime=this._offset}else if(Mt.isMediaStream(e))this._source=new P(e,this._context);else{if(!Mt.isOscillatorType(e&&e.type||e))throw new Error("Cannot detect data type: "+e);this._source=new q(e.type||e,this._context)}this._effects.setSource(this._source.sourceNode),this.emit("ready",this),this._playWhenReady&&this._playWhenReady()},t.prototype._onEnded=function(){this.emit("ended",this)},t.prototype._onLoad=function(e){this._data=e,this.emit("loaded",this),this._createSource(e)},t.prototype._onLoadError=function(e){if(this.listenerCount("error"))return void this.emit("error",this,e)},kt(t,[{key:"context",get:function(){return this._context}},{key:"currentTime",get:function(){return this._source?this._source.currentTime:this._offset},set:function(e){if(this._source){var t=this._source.playing;this._source.stop(),this._source.currentTime=e,t&&this.play(0,e)}else this._offset=e}},{key:"data",get:function(){return this._data},set:function(e){e&&(this._data=e,this._createSource(e))}},{key:"duration",get:function(){return this._source?this._source.duration:0}},{key:"effects",get:function(){return this._effects._nodes},set:function(e){this._effects.removeAll().add(e)}},{key:"fx",get:function(){return this.effects},set:function(e){this.effects=e}},{key:"ended",get:function(){return!!this._source&&this._source.ended}},{key:"frequency",get:function(){return this._source?this._source.frequency:0},set:function(e){this._source&&this._source.hasOwnProperty("frequency")&&(this._source.frequency=e)}},{key:"gain",get:function(){return this._gain}},{key:"groupVolume",get:function(){return this._source.groupVolume},set:function(e){this._source&&this._source.hasOwnProperty("groupVolume")&&(this._source.groupVolume=e)}},{key:"isTouchLocked",set:function(e){this._isTouchLocked=e,this._loader&&(this._loader.isTouchLocked=e),!e&&this._playWhenReady&&this._playWhenReady()}},{key:"loader",get:function(){return this._loader}},{key:"loop",get:function(){return this._loop},set:function(e){this._loop=!!e,this._source&&this._source.hasOwnProperty("loop")&&this._source.loop!==this._loop&&(this._source.loop=this._loop)}},{key:"singlePlay",get:function(){return this._config.singlePlay},set:function(e){this._config.singlePlay=e,this._source.singlePlay=e}},{key:"config",get:function(){return this._config}},{key:"paused",get:function(){return!!this._source&&this._source.paused}},{key:"playing",get:function(){return!!this._source&&this._source.playing}},{key:"playbackRate",get:function(){return this._playbackRate},set:function(e){this._playbackRate=e,this._source&&(this._source.playbackRate=e)}},{key:"progress",get:function(){return this._source?this._source.progress||0:0}},{key:"sourceInfo",get:function(){return this._source&&this._source.info?this._source.info:{}}},{key:"sourceNode",get:function(){return this._source?this._source.sourceNode:null}},{key:"volume",get:function(){return this._gain.gain.value},set:function(e){if(E(e)){window.clearTimeout(this._fadeTimeout),e=Math.min(Math.max(e,0),1);var t=this._gain.gain,n=this._context.currentTime;t.cancelScheduledValues(n),t.value=e,Rt||t.setValueAtTime(e,n),this._source&&this._source.hasOwnProperty("volume")&&(this._source.volume=e)}}},{key:"userData",get:function(){return this._userData}}]),t}(qt);Ft.__source={BufferSource:k,MediaSource:A,MicrophoneSource:P,OscillatorSource:q};var Vt,Gt,Bt,zt,It,Nt,Ut,Wt,Ht,Qt,Xt,Zt,Kt=new h(_t,_t.destination),Jt=function(e,n){function r(){e&&"suspended"===e.state?e.resume().then(function(){t(e),o()}):o()}function o(){document.body.removeEventListener("touchstart",r),document.body.removeEventListener("touchend",r),n()}function i(){document.body.addEventListener("touchstart",r,!1),document.body.addEventListener("touchend",r,!1)}var a=vt;return a&&("loading"===document.readyState?document.addEventListener("DOMContentLoaded",i):i()),a}(_t,function(){Jt=!1,Kt.sounds.forEach(function(e){return e.isTouchLocked=!1})}),Yt=[],$t=function(e,t){function n(){document[i]?e():t()}function r(e){o=e,o?document.addEventListener(a,n,!1):document.removeEventListener(a,n)}var o=!1,i=null,a=null;return void 0!==document.hidden?(i="hidden",a="visibilitychange"):void 0!==document.mozHidden?(i="mozHidden",a="mozvisibilitychange"):void 0!==document.msHidden?(i="msHidden",a="msvisibilitychange"):void 0!==document.webkitHidden&&(i="webkitHidden",a="webkitvisibilitychange"),void 0!==a&&r(!0),{get enabled(){return o},set enabled(e){r(e)}}}(J,Y),en=(Xt={canPlay:Mt.canPlay,context:_t,create:G,createGroup:D,createSound:G,destroyAll:z,destroy:B,effects:Kt.effects,extensions:Mt.extensions,fade:U,file:Mt,gain:Kt.gain,getOfflineContext:jt.getOfflineContext,get:R,getSound:R,group:D,hasWebAudio:!_t.isFake,isSupported:Mt.extensions.length>0,load:V,log:function(){return b(en)},mute:I,pause:Z,pauseAll:W,play:X,register:$,resumeAll:H,stop:K,stopAll:Q,unMute:N,utils:jt,VERSION:"2.1.6"},Vt="effects",Zt={},Zt[Vt]=Zt[Vt]||{},Zt[Vt].get=function(){return Kt.effects},Gt="effects",Zt[Gt]=Zt[Gt]||{},Zt[Gt].set=function(e){Kt.effects.removeAll().add(e)},Bt="fx",Zt[Bt]=Zt[Bt]||{},Zt[Bt].get=function(){return this.effects},zt="fx",Zt[zt]=Zt[zt]||{},Zt[zt].set=function(e){this.effects=e},It="isTouchLocked",Zt[It]=Zt[It]||{},Zt[It].get=function(){return Jt},Nt="playInBackground",Zt[Nt]=Zt[Nt]||{},Zt[Nt].get=function(){return!$t.enabled},Ut="playInBackground",Zt[Ut]=Zt[Ut]||{},Zt[Ut].set=function(e){$t.enabled=!e,e||Y()},Wt="sounds",Zt[Wt]=Zt[Wt]||{},Zt[Wt].get=function(){return Kt.sounds.slice(0)},Ht="volume",Zt[Ht]=Zt[Ht]||{},Zt[Ht].get=function(){return Kt.volume},Qt="volume",Zt[Qt]=Zt[Qt]||{},Zt[Qt].set=function(e){Kt.volume=e},Xt.__test={Effects:Tt,Group:h,Sound:Ft},function(e,t){for(var n in t){var r=t[n];r.configurable=r.enumerable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,n,r)}}(Xt,Zt),Xt),tn=function(){function e(t){bt(this,e),this._node=this._in=this._out=t}return e.prototype.connect=function(e){this._node.connect(e._in||e)},e.prototype.disconnect=function(){for(var e=arguments.length,t=Array(e),n=0;n<e;n++)t[n]=arguments[n];this._node.disconnect(t)},e.prototype.update=function(){throw new Error("update must be overridden")},kt(e,[{key:"context",get:function(){return _t}},{key:"numberOfInputs",get:function(){return 1}},{key:"numberOfOutputs",get:function(){return 1}},{key:"channelCount",get:function(){return 1}},{key:"channelCountMode",get:function(){return"max"}},{key:"channelInterpretation",get:function(){return"speakers"}}]),e}(),nn=function(e){function t(){var n=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{},r=n.fftSize,o=void 0===r?2048:r,i=n.minDecibels,a=void 0===i?-100:i,u=n.maxDecibels,s=void 0===u?-30:u,c=n.smoothing,f=void 0===c?.9:c,l=n.useFloats,d=void 0!==l&&l;bt(this,t);var h=xt(this,e.call(this,en.context.createAnalyser()));return h._useFloats=!!d,h._waveform=null,h._frequencies=null,h._node.fftSize=o,h.update({minDecibels:a,maxDecibels:s,smoothing:f}),h}return wt(t,e),t.prototype.update=function(e){var t=e.minDecibels,n=e.maxDecibels,r=e.smoothing;E(r)&&(this._node.smoothingTimeConstant=r),E(t)&&(this._node.minDecibels=t),E(n)&&(this._node.maxDecibels=n)},t.prototype.getWaveform=function(){var e=this._useFloats&&this._node.getFloatTimeDomainData;return this._waveform||(this._waveform=this._createArray(e,this._node.fftSize)),e?this._node.getFloatTimeDomainData(this._waveform):this._node.getByteTimeDomainData(this._waveform),this._waveform},t.prototype.getFrequencies=function(){var e=this._useFloats&&this._node.getFloatFrequencyData;return this._frequencies||(this._frequencies=this._createArray(e,this._node.frequencyBinCount)),e?this._node.getFloatFrequencyData(this._frequencies):this._node.getByteFrequencyData(this._frequencies),this._frequencies},t.prototype.getAmplitude=function(e){this._amplitudeWorker||this._createAmplitudeAnalyser(),this._amplitudeCallback=e||this._amplitudeCallback;var t=new Float32Array(this._node.fftSize);t.set(this.getFrequencies(!0)),this._amplitudeWorker.postMessage({sum:0,length:t.byteLength,numSamples:this._node.fftSize/2,b:t.buffer},[t.buffer])},t.prototype.getPitch=function(e){this._pitchWorker||this._createPitchAnalyser(),this._pitchCallback=e||this._pitchCallback;var t=new Float32Array(this._node.fftSize);t.set(this.getWaveform(!0)),this._pitchWorker.postMessage({sampleRate:en.context.sampleRate,b:t.buffer},[t.buffer])},t.prototype._createArray=function(e,t){return e?new Float32Array(t):new Uint8Array(t)},t.prototype._createAmplitudeAnalyser=function(){var e=this,t=new Blob(["onmessage = function(e) {\n                var data = e.data;\n                var f = new Float32Array(data.b);\n                for (var i = 0; i < f.length; i++) {\n                    data.sum += f[i];\n                }\n                data.sum /= f.length;\n                postMessage(Math.max(1.0 - (data.sum / data.numSamples * -1.0), 0));\n            };"]),n=URL.createObjectURL(t);this._amplitudeWorker=new Worker(n),this._amplitudeWorker.onmessage=function(t){e._amplitudeCallback&&e._amplitudeCallback(t.data)}},t.prototype._createPitchAnalyser=function(){var e=this,t=new Blob(["onmessage = function(e) {\n                var data = e.data;\n                var sampleRate = data.sampleRate;\n                var buf = new Float32Array(data.b);\n                var SIZE = buf.length;\n                var MAX_SAMPLES = Math.floor(SIZE / 2);\n                var bestOffset = -1;\n                var bestCorrel = 0;\n                var rms = 0;\n                var foundGoodCorrelation = false;\n                var correls = new Array(MAX_SAMPLES);\n