SoundInstance3d(manager, sound, options) 

Parameters

manager	pc.SoundManager	The sound manager.
sound	pc.Sound	The sound to play.
options	object	Options for the instance.
options.volume	number	The playback volume, between 0 and 1.
options.pitch	number	The relative pitch, default of 1, plays at normal pitch.
options.loop	boolean	Whether the sound should loop when it reaches the end or not.
options.startTime	number	The time from which the playback will start. Default is 0 to start at the beginning.
options.duration	number	The total time after the startTime when playback will stop or restart if loop is true.
options.position	pc.Vec3	The position of the sound in 3D space.
options.velocity	pc.Vec3	The velocity of the sound.
options.distanceModel	string	Determines which algorithm to use to reduce the volume of the audio as it moves away from the listener. Can be: pc.DISTANCE_LINEAR pc.DISTANCE_INVERSE pc.DISTANCE_EXPONENTIAL Default is pc.DISTANCE_LINEAR.
options.refDistance	number	The reference distance for reducing volume as the sound source moves further from the listener.
options.maxDistance	number	The maximum distance from the listener at which audio falloff stops. Note the volume of the audio is not 0 after this distance, but just doesn't fall off anymore.
options.rollOffFactor	number	The factor used in the falloff equation.

stringdistanceModel 

Determines which algorithm to use to reduce the volume of the audio as it moves away from the listener. Can be:

• pc.DISTANCE_LINEAR
• pc.DISTANCE_INVERSE
• pc.DISTANCE_EXPONENTIAL

Default is pc.DISTANCE_LINEAR.

numbermaxDistance 

The maximum distance from the listener at which audio falloff stops. Note the volume of the audio is not 0 after this distance, but just doesn't fall off anymore.

pc.Vec3position 

The position of the sound in 3D space.

numberrefDistance 

The reference distance for reducing volume as the sound source moves further from the listener.

numberrollOffFactor 

The factor used in the falloff equation.

pc.Vec3velocity 

The velocity of the sound.

numbercurrentTime 

Gets or sets the current time of the sound that is playing. If the value provided is bigger than the duration of the instance it will wrap from the beginning.

numberduration 

The duration of the sound that the instance will play starting from startTime.

booleanisPaused 

Returns true if the instance is currently paused.

booleanisPlaying 

Returns true if the instance is currently playing.

booleanisStopped 

Returns true if the instance is currently stopped.

booleanisSuspended 

Returns true if the instance is currently suspended because the window is not focused.

booleanloop 

If true the instance will restart when it finishes playing.

numberpitch 

The pitch modifier to play the sound with. Must be larger than 0.01.

pc.Soundsound 

The sound resource that the instance will play.

AudioBufferSourceNodesource 

Gets the source that plays the sound resource. If the Web Audio API is not supported the type of source is Audio. Source is only available after calling play.

numberstartTime 

The start time from which the sound will start playing.

numbervolume 

The volume modifier to play the sound with. In range 0-1.

clearExternalNodes() 

Clears any external nodes set by pc.SoundInstance#setExternalNodes.

fire(name, [arg1], [arg2], [arg3], [arg4], [arg5], [arg6], [arg7], [arg8]) 

Fire an event, all additional arguments are passed on to the event listener.

obj.fire('test', 'This is the message');

Parameters

name	object	Name of event to fire.
arg1	*	First argument that is passed to the event handler.
arg2	*	Second argument that is passed to the event handler.
arg3	*	Third argument that is passed to the event handler.
arg4	*	Fourth argument that is passed to the event handler.
arg5	*	Fifth argument that is passed to the event handler.
arg6	*	Sixth argument that is passed to the event handler.
arg7	*	Seventh argument that is passed to the event handler.
arg8	*	Eighth argument that is passed to the event handler.

Returns

pc.EventHandler

Self for chaining.

getExternalNodes() 

Gets any external nodes set by pc.SoundInstance#setExternalNodes.

Returns

AudioNode[]

Returns an array that contains the two nodes set by pc.SoundInstance#setExternalNodes.

hasEvent(name) 

Test if there are any handlers bound to an event name.

obj.on('test', function () { }); // bind an event to 'test'
obj.hasEvent('test'); // returns true
obj.hasEvent('hello'); // returns false

Parameters

name

string

The name of the event to test.

Returns

boolean

True if the object has handlers bound to the specified event name.

off([name], [callback], [scope]) 

Detach an event handler from an event. If callback is not provided then all callbacks are unbound from the event, if scope is not provided then all events with the callback will be unbound.

var handler = function () {
};
obj.on('test', handler);

obj.off(); // Removes all events
obj.off('test'); // Removes all events called 'test'
obj.off('test', handler); // Removes all handler functions, called 'test'
obj.off('test', handler, this); // Removes all hander functions, called 'test' with scope this

Parameters

name	string	Name of the event to unbind.
callback	pc.callbacks.HandleEvent	Function to be unbound.
scope	object	Scope that was used as the this when the event is fired.

Returns

pc.EventHandler

Self for chaining.

on(name, callback, [scope]) 

Attach an event handler to an event.

obj.on('test', function (a, b) {
    console.log(a + b);
});
obj.fire('test', 1, 2); // prints 3 to the console

Parameters

name	string	Name of the event to bind the callback to.
callback	pc.callbacks.HandleEvent	Function that is called when event is fired. Note the callback is limited to 8 arguments.
scope	object	Object to use as 'this' when the event is fired, defaults to current this.

Returns

pc.EventHandler

Self for chaining.

once(name, callback, [scope]) 

Attach an event handler to an event. This handler will be removed after being fired once.

obj.once('test', function (a, b) {
    console.log(a + b);
});
obj.fire('test', 1, 2); // prints 3 to the console
obj.fire('test', 1, 2); // not going to get handled

Parameters

name	string	Name of the event to bind the callback to.
callback	pc.callbacks.HandleEvent	Function that is called when event is fired. Note the callback is limited to 8 arguments.
scope	object	Object to use as 'this' when the event is fired, defaults to current this.

Returns

pc.EventHandler

Self for chaining.

pause() 

Pauses playback of sound. Call resume() to resume playback from the same position.

Returns

boolean

Returns true if the sound was paused.

play() 

Begins playback of sound. If the sound is not loaded this will return false. If the sound is already playing this will restart the sound.

Returns

boolean

True if the sound was started.

resume() 

Resumes playback of the sound. Playback resumes at the point that the audio was paused.

Returns

boolean

Returns true if the sound was resumed.

setExternalNodes(firstNode, [lastNode]) 

Connects external Web Audio API nodes. You need to pass the first node of the node graph that you created externally and the last node of that graph. The first node will be connected to the audio source and the last node will be connected to the destination of the AudioContext (e.g. speakers). Requires Web Audio API support.

var context = app.systems.sound.context;
var analyzer = context.createAnalyzer();
var distortion = context.createWaveShaper();
var filter = context.createBiquadFilter();
analyzer.connect(distortion);
distortion.connect(filter);
instance.setExternalNodes(analyzer, filter);

Parameters

firstNode	AudioNode	The first node that will be connected to the audio source of sound instances.
lastNode	AudioNode	The last node that will be connected to the destination of the AudioContext. If unspecified then the firstNode will be connected to the destination instead.

stop() 

Stops playback of sound. Calling play() again will restart playback from the beginning of the sound.

Returns

boolean

Returns true if the sound was stopped.

end 

Fired when the sound currently played by the instance ends.

pause 

Fired when the instance is paused.

play 

Fired when the instance starts playing its source.

resume 

Fired when the instance is resumed.

stop 

Fired when the instance is stopped.