2014-09-04 19:20:25 +00:00
/ * *
* Tone . js
*
* @ author Yotam Mann
*
* @ license http : //opensource.org/licenses/MIT MIT License 2014
* /
2014-09-24 01:57:32 +00:00
! function ( t ) { "function" != typeof define && "function" != typeof t . Tone && ( t . define = function ( ) { var e = arguments [ arguments . length - 1 ] , i = arguments [ 0 ] ; "Tone/core/Tone" === i ? t . Tone = e ( ) : "function" == typeof e && e ( t . Tone ) } ) } ( this ) , define ( "Tone/core/Tone" , [ ] , function ( ) { function t ( t ) { return void 0 === t } var e ; if ( t ( window . AudioContext ) && ( window . AudioContext = window . webkitAudioContext ) , t ( window . OfflineAudioContext ) && ( window . OfflineAudioContext = window . webkitOfflineAudioContext ) , t ( AudioContext ) ) throw new Error ( "Web Audio is not supported in this browser" ) ; e = new AudioContext , "function" != typeof AudioContext . prototype . createGain && ( AudioContext . prototype . createGain = AudioContext . prototype . createGainNode ) , "function" != typeof AudioContext . prototype . createDelay && ( AudioContext . prototype . createDelay = AudioContext . prototype . createDelayNode ) , "function" != typeof AudioContext . prototype . createPeriodicWave && ( AudioContext . prototype . createPeriodicWave = AudioContext . prototype . createWaveTable ) , "function" != typeof AudioBufferSourceNode . prototype . start && ( AudioBufferSourceNode . prototype . start = AudioBufferSourceNode . prototype . noteGrainOn ) , "function" != typeof AudioBufferSourceNode . prototype . stop && ( AudioBufferSourceNode . prototype . stop = AudioBufferSourceNode . prototype . noteOff ) , "function" != typeof OscillatorNode . prototype . start && ( OscillatorNode . prototype . start = OscillatorNode . prototype . noteOn ) , "function" != typeof OscillatorNode . prototype . stop && ( OscillatorNode . prototype . stop = OscillatorNode . prototype . noteOff ) , "function" != typeof OscillatorNode . prototype . setPeriodicWave && ( OscillatorNode . prototype . setPeriodicWave = OscillatorNode . prototype . setWaveTable ) , AudioNode . prototype . _nativeConnect = AudioNode . prototype . connect , AudioNode . prototype . connect = function ( e , i , n ) { if ( e . input ) Array . isArray ( e . input ) ? ( t ( n ) && ( n = 0 ) , this . connect ( e . input [ n ] ) ) : this . connect ( e . input ) ; else try { e instanceof AudioNode ? this . _nativeConnect ( e , i , n ) : this . _nativeConnect ( e , i ) } catch ( o ) { throw new Error ( "error connecting to node: " + e ) } } ; var i = function ( ) { this . input = this . context . createGain ( ) , this . output = this . context . createGain ( ) } ; i . context = e , i . prototype . context = i . context , i . prototype . bufferSize = 2048 , i . prototype . connect = function ( t , e , i ) { Array . isArray ( this . output ) ? ( e = this . defaultArg ( e , 0 ) , this . output [ e ] . connect ( t , 0 , i ) ) : this . output . connect ( t , e , i ) } , i . prototype . disconnect = function ( ) { this . output . disconnect ( ) } , i . prototype . chain = function ( ) { if ( arguments . length > 1 ) for ( var t = arguments [ 0 ] , e = 1 ; e < arguments . length ; e ++ ) { var i = arguments [ e ] ; t . connect ( i ) , t = i } } , i . prototype . fan = function ( ) { var t = arguments [ 0 ] ; if ( arguments . length > 1 ) for ( var e = 1 ; e < arguments . length ; e ++ ) { var i = arguments [ e ] ; t . connect ( i ) } } , i . prototype . defaultArg = function ( e , i ) { if ( "object" == typeof e && "object" == typeof i ) { var n = { } ; for ( var o in e ) n [ o ] = this . defaultArg ( e [ o ] , e [ o ] ) ; for ( var s in i ) n [ s ] = this . defaultArg ( e [ s ] , i [ s ] ) ; return n } return t ( e ) ? i : e } , i . prototype . optionsObject = function ( t , e , i ) { var n = { } ; if ( 1 === t . length && "object" == typeof t [ 0 ] ) n = t [ 0 ] ; else for ( var o = 0 ; o < e . length ; o ++ ) n [ e [ o ] ] = t [ o ] ; return this . isUndef ( i ) ? n : this . defaultArg ( n , i ) } , i . prototype . isUndef = t , i . prototype . equalPowerScale = function ( t ) { var e = . 5 * Math . PI ; return Math . sin ( t * e ) } , i . prototype . logScale = function ( t ) { return Math . max ( this . normalize ( this . gainToDb ( t ) , - 100 , 0 ) , 0 ) } , i . prototype . expScale = function ( t ) { return this . dbToGain ( this . interpolate ( t , - 100 , 0 ) ) } , i . prototype . dbToGain = function ( t ) { return Math . pow ( 2 , t / 6 ) } , i . prototype . gainToDb = function ( t ) { return 20 * ( Math . log ( t ) / Math . LN10 ) } , i . prototype . interpolate = function ( t , e , i ) { return t * ( i - e ) + e } , i . prototype . normalize = function ( t , e , i ) { if ( e > i ) { var n = i ; i = e , e = n } else if ( e == i ) return 0 ; return ( t - e ) / ( i - e ) } , i . prototype . dispose = function ( ) { this . isUndef ( this . input ) || ( this . input instanceof AudioNode && this . input . disconnect ( ) , this . input = null ) , this . isUndef ( this . output ) || ( this . output instanceof AudioNode && this . output . disconnect ( ) , this . output = null ) } ; var n = null ; i . prototype . noGC = function ( ) { this . output . connect ( n ) } , AudioNode . prototype . noGC = function ( ) { this . connect ( n ) } , i . prototype . now = function ( ) { return this . context . currentTime } , i . prototype . samplesToSeconds = function ( t ) { return t / this . context . sampleRate } , i . prototype . toSamples = function ( t ) { var e = this .
} , t . Clock . prototype . dispose = function ( ) { this . _jsNode . disconnect ( ) , this . _controlSignal . dispose ( ) , this . _oscillator && ( this . _oscillator . onended ( ) , this . _oscillator . disconnect ( ) ) , this . _jsNode . onaudioprocess = function ( ) { } , this . _jsNode = null , this . _controlSignal = null , this . _oscillator = null } , t . Clock } ) , define ( "Tone/core/Transport" , [ "Tone/core/Tone" , "Tone/core/Clock" , "Tone/signal/Signal" ] , function ( Tone ) { Tone . Transport = function ( ) { this . _clock = new Tone . Clock ( 1 , this . _processTick . bind ( this ) ) , this . loop = ! 1 , this . state = TransportState . STOPPED } , Tone . extend ( Tone . Transport ) ; var timelineTicks = 0 , transportTicks = 0 , tatum = 12 , transportTimeSignature = 4 , loopStart = 0 , loopEnd = 4 * tatum , intervals = [ ] , timeouts = [ ] , transportTimeline = [ ] , timelineProgress = 0 , SyncedSources = [ ] , TransportState = { STARTED : "started" , PAUSED : "paused" , STOPPED : "stopped" } ; Tone . Transport . prototype . _processTick = function ( t ) { this . state === TransportState . STARTED && ( processIntervals ( t ) , processTimeouts ( t ) , processTimeline ( t ) , transportTicks += 1 , timelineTicks += 1 , this . loop && timelineTicks === loopEnd && this . _setTicks ( loopStart ) ) } , Tone . Transport . prototype . _setTicks = function ( t ) { timelineTicks = t ; for ( var e = 0 ; e < transportTimeline . length ; e ++ ) { var i = transportTimeline [ e ] ; if ( i . callbackTick ( ) >= t ) { timelineProgress = e ; break } } } ; var processIntervals = function ( t ) { for ( var e = 0 , i = intervals . length ; i > e ; e ++ ) { var n = intervals [ e ] ; n . testInterval ( transportTicks ) && n . doCallback ( t ) } } , processTimeouts = function ( t ) { for ( var e = 0 , i = 0 , n = timeouts . length ; n > i ; i ++ ) { var o = timeouts [ i ] , s = o . callbackTick ( ) ; if ( transportTicks >= s ) o . doCallback ( t ) , e ++ ; else if ( s > transportTicks ) break } timeouts . splice ( 0 , e ) } , processTimeline = function ( t ) { for ( var e = timelineProgress , i = transportTimeline . length ; i > e ; e ++ ) { var n = transportTimeline [ e ] , o = n . callbackTick ( ) ; if ( o === timelineTicks ) timelineProgress = e , n . doCallback ( t ) ; else if ( o > timelineTicks ) break } } ; Tone . Transport . prototype . setInterval = function ( t , e , i ) { var n = this . toTicks ( e ) , o = new TimelineEvent ( t , i , n , transportTicks ) ; return intervals . push ( o ) , o . id } , Tone . Transport . prototype . clearInterval = function ( t ) { for ( var e = 0 ; e < intervals . length ; e ++ ) { var i = intervals [ e ] ; if ( i . id === t ) return intervals . splice ( e , 1 ) , ! 0 } return ! 1 } , Tone . Transport . prototype . clearIntervals = function ( ) { intervals = [ ] } , Tone . Transport . prototype . setTimeout = function ( t , e , i ) { for ( var n = this . toTicks ( e ) , o = new TimelineEvent ( t , i , n + transportTicks , 0 ) , s = 0 , r = timeouts . length ; r > s ; s ++ ) { var a = timeouts [ s ] ; if ( a . callbackTick ( ) > o . callbackTick ( ) ) return timeouts . splice ( s , 0 , o ) , o . id } return timeouts . push ( o ) , o . id } , Tone . Transport . prototype . clearTimeout = function ( t ) { for ( var e = 0 ; e < timeouts . length ; e ++ ) { var i = timeouts [ e ] ; if ( i . id === t ) return timeouts . splice ( e , 1 ) , ! 0 } return ! 1 } , Tone . Transport . prototype . clearTimeouts = function ( ) { timeouts = [ ] } , Tone . Transport . prototype . setTimeline = function ( t , e , i ) { for ( var n = this . toTicks ( e ) , o = new TimelineEvent ( t , i , n , 0 ) , s = timelineProgress , r = transportTimeline . length ; r > s ; s ++ ) { var a = transportTimeline [ s ] ; if ( a . callbackTick ( ) > o . callbackTick ( ) ) return transportTimeline . splice ( s , 0 , o ) , o . id } return transportTimeline . push ( o ) , o . id } , Tone . Transport . prototype . clearTimeline = function ( t ) { for ( var e = 0 ; e < transportTimeline . length ; e ++ ) { var i = transportTimeline [ e ] ; if ( i . id === t ) return transportTimeline . splice ( e , 1 ) , ! 0 } return ! 1 } , Tone . Transport . prototype . clearTimelines = function ( ) { timelineProgress = 0 , transportTimeline = [ ] } , Tone . Transport . prototype . toTicks = function ( t ) { var e = this . toSeconds ( t ) , i = this . notationToSeconds ( "4n" ) , n = e / i , o = n * tatum ; return Math . round ( o ) } , Tone . Transport . prototype . getTransportTime = function ( ) { var t = timelineTicks / tatum , e = Math . floor ( t / transportTimeSignature ) , i = Math . floor ( t % 1 * 4 ) ; t = Math . floor ( t ) % transportTimeSignature ; var n = [ e , t , i ] ; return n . join ( ":" ) } , Tone . Transport . prototype . setTransportTime = function ( t ) { var e = this . toTicks ( t ) ; this . _setTicks ( e ) } , Tone . Transport . prototype . start = function ( t ) { if ( this . state === TransportState . STOPPED || this . state === TransportState . PAUSED ) { this . state = TransportState . STARTED ; var e = this . toSeconds ( t ) ; this . _clock . start ( e ) ; for ( var i = 0 ; i < SyncedSources . length ; i ++ ) { var n = SyncedSources [ i ] . source , o = SyncedSources [ i ] . delay ; n . start ( e + o ) } } } , Tone . Transport . prototype . stop = function ( t ) { if ( this . state === TransportState . STARTED || this . st
} ; return t . extend ( e ) , e . prototype . _makeCurve = function ( t ) { for ( var e = Math . pow ( 2 , 18 ) , i = new Float32Array ( e ) , n = 0 ; n < i . length ; n ++ ) i [ n ] = n === e - 1 ? - t : 0 === n ? t : 0 ; this . _operator . curve = i } , e . prototype . connect = function ( t ) { this . _operator . connect ( t ) , this . input . connect ( t ) } , e . prototype . dispose = function ( ) { t . prototype . dispose . call ( this ) , this . _div . dispose ( ) , this . _operator . disconnect ( ) , this . _div = null , this . _operator = null } , t . Modulo } ) , define ( "Tone/effect/BitCrusher" , [ "Tone/core/Tone" , "Tone/effect/Effect" , "Tone/signal/Modulo" , "Tone/signal/Negate" , "Tone/signal/Add" ] , function ( t ) { return t . BitCrusher = function ( ) { var e = this . optionsObject ( arguments , [ "bits" ] , t . BitCrusher . defaults ) ; t . Effect . call ( this , e ) , this . _modulo = new t . Modulo ( 1 , e . bits ) , this . _neg = new t . Negate , this . _sub = this . context . createGain ( ) ; var i = Math . pow ( 2 , e . bits - 1 ) ; this . _scale = new t . Scale ( - 1 , 1 , 0 , i ) , this . _invScale = new t . Scale ( 0 , i , - 1 , 1 ) , this . effectSend . connect ( this . _scale ) , this . _scale . connect ( this . _invScale ) , this . chain ( this . _scale , this . _modulo , this . _neg , this . _invScale , this . effectReturn ) } , t . extend ( t . BitCrusher , t . Effect ) , t . BitCrusher . defaults = { bits : 4 } , t . BitCrusher . prototype . setBits = function ( t ) { t = Math . min ( t , 8 ) ; var e = Math . pow ( 2 , t - 1 ) ; this . _scale . setOutputMax ( e ) , this . _invScale . setInputMax ( e ) } , t . BitCrusher . prototype . set = function ( e ) { this . isUndef ( e . bits ) || this . setBits ( e . bits ) , t . Effect . prototype . set . call ( this , e ) } , t . BitCrusher . prototype . dispose = function ( ) { t . Effect . prototype . dispose . call ( this ) , this . _modulo . dispose ( ) , this . _neg . dispose ( ) , this . _sub . disconnect ( ) , this . _scale . dispose ( ) , this . _invScale . dispose ( ) , this . _modulo = null , this . _neg = null , this . _sub = null , this . _scale = null , this . _invScale = null } , t . BitCrusher } ) , define ( "Tone/effect/StereoEffect" , [ "Tone/core/Tone" , "Tone/effect/Effect" , "Tone/component/Split" , "Tone/component/Merge" , "Tone/component/Mono" ] , function ( t ) { return t . StereoEffect = function ( ) { t . call ( this ) ; var e = this . optionsObject ( arguments , [ "dry" ] , t . Effect . defaults ) ; this . dryWet = new t . DryWet , this . _mono = new t . Mono , this . _split = new t . Split , this . effectSendL = this . _split . left , this . effectSendR = this . _split . right , this . _merge = new t . Merge , this . effectReturnL = this . _merge . left , this . effectReturnR = this . _merge . right , this . input . connect ( this . _mono ) , this . _mono . connect ( this . _split ) , this . _mono . connect ( this . dryWet . dry ) , this . _merge . connect ( this . dryWet . wet ) , this . dryWet . connect ( this . output ) , this . setDry ( e . dry ) } , t . extend ( t . StereoEffect , t . Effect ) , t . StereoEffect . prototype . dispose = function ( ) { t . prototype . dispose . call ( this ) , this . dryWet . dispose ( ) , this . _mono . dispose ( ) , this . _split . dispose ( ) , this . _merge . dispose ( ) , this . _mono = null , this . _split = null , this . _merge = null , this . effectSendL = null , this . effectSendR = null , this . effectReturnL = null , this . effectReturnR = null , this . dryWet = null } , t . StereoEffect } ) , define ( "Tone/effect/FeedbackEffect" , [ "Tone/core/Tone" , "Tone/effect/Effect" , "Tone/signal/Signal" , "Tone/signal/Multiply" ] , function ( t ) { return t . FeedbackEffect = function ( ) { var e = this . optionsObject ( arguments , [ "feedback" ] ) ; e = this . defaultArg ( e , t . FeedbackEffect . defaults ) , t . Effect . call ( this , e ) , this . feedback = new t . Signal ( e . feedback ) , this . _half = new t . Multiply ( . 5 ) , this . _feedbackGain = this . context . createGain ( ) , this . chain ( this . effectReturn , this . _feedbackGain , this . effectSend ) , this . chain ( this . feedback , this . _half , this . _feedbackGain . gain ) } , t . extend ( t . FeedbackEffect , t . Effect ) , t . FeedbackEffect . defaults = { feedback : . 25 } , t . FeedbackEffect . prototype . setFeedback = function ( t , e ) { e ? this . feedback . linearRampToValueNow ( t , e ) : this . feedback . setValue ( t ) } , t . FeedbackEffect . prototype . set = function ( e ) { this . isUndef ( e . feedback ) || this . setFeedback ( e . feedback ) , t . Effect . prototype . set . call ( this , e ) } , t . FeedbackEffect . prototype . dispose = function ( ) { t . Effect . prototype . dispose . call ( this ) , this . feedback . dispose ( ) , this . _half . dispose ( ) , this . _feedbackGain . disconnect ( ) , this . feedback = null , this . _feedbackGain = null , this . _half = null } , t . FeedbackEffect } ) , define ( "Tone/effect/StereoXFeedbackEffect" , [ "Tone/core/Tone" , "Tone/effect/StereoEffect" , "Tone/effect/FeedbackEffect" ] , function ( t ) { return t . StereoXFeedbackEffect = function ( ) { var e = this . optionsObject ( arguments , [ "feedback" ] , t . FeedbackEffect . defaults ) ; t . StereoEffect . call ( this , e ) , this . feedback = new t . Si
} , t . MultiSampler } ) , define ( "Tone/source/Noise" , [ "Tone/core/Tone" , "Tone/source/Source" ] , function ( t ) { t . Noise = function ( e ) { t . Source . call ( this ) , this . _source = null , this . _buffer = null , this . onended = function ( ) { } , this . setType ( this . defaultArg ( e , "white" ) ) } , t . extend ( t . Noise , t . Source ) , t . Noise . prototype . setType = function ( o , s ) { switch ( o ) { case "white" : this . _buffer = n ; break ; case "pink" : this . _buffer = e ; break ; case "brown" : this . _buffer = i ; break ; default : this . _buffer = n } this . state === t . Source . State . STARTED && ( s = this . toSeconds ( s ) , this . _source . onended = void 0 , this . _stop ( s ) , this . _start ( s ) ) } , t . Noise . prototype . _start = function ( t ) { this . _source = this . context . createBufferSource ( ) , this . _source . buffer = this . _buffer , this . _source . loop = ! 0 , this . chain ( this . _source , this . output ) , this . _source . start ( this . toSeconds ( t ) ) , this . _source . onended = this . _onended . bind ( this ) } , t . Noise . prototype . start = function ( e ) { this . state === t . Source . State . STOPPED && ( this . state = t . Source . State . STARTED , this . _start ( e ) ) } , t . Noise . prototype . _stop = function ( t ) { this . _source . stop ( this . toSeconds ( t ) ) } , t . Noise . prototype . stop = function ( e ) { this . state === t . Source . State . STARTED && this . _buffer && this . _source && ( e || ( this . state = t . Source . State . STOPPED ) , this . _stop ( e ) ) } , t . Noise . prototype . _onended = function ( ) { this . state = t . Source . State . STOPPED , this . onended ( ) } , t . Noise . prototype . dispose = function ( ) { t . Source . prototype . dispose . call ( this ) , null !== this . _source && ( this . _source . disconnect ( ) , this . _source = null ) , this . _buffer = null } ; var e = null , i = null , n = null ; return t . _initAudioContext ( function ( t ) { var o = t . sampleRate , s = 4 * o ; e = function ( ) { for ( var e = t . createBuffer ( 2 , s , o ) , i = 0 ; i < e . numberOfChannels ; i ++ ) { var n , r , a , c , l , h , u , p = e . getChannelData ( i ) ; n = r = a = c = l = h = u = 0 ; for ( var f = 0 ; s > f ; f ++ ) { var d = 2 * Math . random ( ) - 1 ; n = . 99886 * n + . 0555179 * d , r = . 99332 * r + . 0750759 * d , a = . 969 * a + . 153852 * d , c = . 8665 * c + . 3104856 * d , l = . 55 * l + . 5329522 * d , h = - . 7616 * h - . 016898 * d , p [ f ] = n + r + a + c + l + h + u + . 5362 * d , p [ f ] *= . 11 , u = . 115926 * d } } return e } ( ) , i = function ( ) { for ( var e = t . createBuffer ( 2 , s , o ) , i = 0 ; i < e . numberOfChannels ; i ++ ) for ( var n = e . getChannelData ( i ) , r = 0 , a = 0 ; s > a ; a ++ ) { var c = 2 * Math . random ( ) - 1 ; n [ a ] = ( r + . 02 * c ) / 1.02 , r = n [ a ] , n [ a ] *= 3.5 } return e } ( ) , n = function ( ) { for ( var e = t . createBuffer ( 2 , s , o ) , i = 0 ; i < e . numberOfChannels ; i ++ ) for ( var n = e . getChannelData ( i ) , r = 0 ; s > r ; r ++ ) n [ r ] = 2 * Math . random ( ) - 1 ; return e } ( ) } ) , t . Noise } ) , define ( "Tone/instrument/PluckSynth" , [ "Tone/core/Tone" , "Tone/instrument/Instrument" , "Tone/source/Noise" , "Tone/component/LowpassCombFilter" ] , function ( t ) { return t . PluckSynth = function ( ) { t . Instrument . call ( this ) , this . _noise = new t . Noise ( "pink" ) , this . attackNoise = 1 , this . _lfcf = new t . LowpassCombFilter ( 1 / 440 ) , this . resonance = this . _lfcf . resonance , this . dampening = this . _lfcf . dampening , this . _noise . connect ( this . _lfcf ) , this . _lfcf . connect ( this . output ) } , t . extend ( t . PluckSynth , t . Instrument ) , t . PluckSynth . prototype . triggerAttack = function ( t , e ) { "string" == typeof t && ( t = this . noteToFrequency ( t ) ) , e = this . toSeconds ( e ) ; var i = 1 / t ; this . _lfcf . setDelayTime ( i , e ) , this . _noise . start ( e ) , this . _noise . stop ( e + i * this . attackNoise ) } , t . PluckSynth . prototype . dispose = function ( ) { t . Instrument . prototype . dispose . call ( this ) , this . _noise . dispose ( ) , this . _lfcf . dispose ( ) , this . _noise = null , this . _lfcf = null , this . dampening = null , this . resonance = null } , t . PluckSynth } ) , define ( "Tone/instrument/PolySynth" , [ "Tone/core/Tone" , "Tone/instrument/MonoSynth" , "Tone/source/Source" ] , function ( t ) { return t . PolySynth = function ( ) { t . Instrument . call ( this ) ; var e = this . optionsObject ( arguments , [ "polyphony" , "voice" , "voiceOptions" ] , t . PolySynth . defaults ) ; this . _voices = new Array ( e . polyphony ) , this . _freeVoices = [ ] , this . _activeVoices = { } ; for ( var i = 0 ; i < e . polyphony ; i ++ ) { var n = new e . voice ( e . voiceOptions ) ; this . _voices [ i ] = n , n . connect ( this . output ) } this . _freeVoices = this . _voices . slice ( 0 ) } , t . extend ( t . PolySynth , t . Instrument ) , t . PolySynth . defaults = { polyphony : 4 , voice : t . MonoSynth , voiceOptions : { portamento : 0 } } , t . PolySynth . prototype . triggerAttack = function ( t , e , i ) { var n = JSON . stringify ( t ) ; if ( this . _activeVoices [ n ] ) this . _activeVoices [ n ] . triggerAttack ( t , e , i ) ; else if ( this . _freeVoices . length > 0 ) { var o = this . _freeVoices . shift ( ) ; o . triggerAttack ( t , e , i ) , this . _activeVoices [ n ] = o } } , t . PolySynth . prototype . triggerAttackRelease = function ( t , e , i , n ) { i = this . toSeconds ( i ) , this . triggerAtta
