| Package | mx.effects |
| Class | public class SoundEffect |
| Inheritance | SoundEffect  Effect EventDispatcher Object |
| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
You specify the MP3 file using the source property.
If you have already embedded the MP3 file, using the Embed
keyword, you can pass the Class object of the MP3 file to the
source property.
Otherwise, specify the full URL to the MP3 file.
Show MXML Syntax
Hide MXML SyntaxThe <mx:SoundEffect> tag
inherits all of the tag attributes of its superclass,
and adds the following tag attributes:
<mx:SoundEffect
Properties
id="ID"
autoLoad="true|false"
bufferTime="1000"
loops="0"
panEasingFunction=""
panFrom="0"
source=""
startTime="0"
useDuration="true|false"
volumeEasingFunction="true|false"
volumeTo="1"
Events
complete="No default"
id3="No default"
ioError="No default"
progress="No default"
/>
Related API Elements
| Property | Defined By | ||
|---|---|---|---|
| autoLoad : Boolean
If true, load the MP3 file
when the source has been specified. | SoundEffect | ||
| bufferTime : Number = 1000
The SoundEffect class uses an internal Sound object to control
the MP3 file. | SoundEffect | ||
 | className : String [read-only]
The name of the effect class, such as "Fade". | Effect | |
| constructor : Object
A reference to the class object or constructor function for a given object instance. | Object | |
| customFilter : mx.effects:EffectTargetFilter
Specifies a custom filter object, of type EffectTargetFilter,
used by the effect to determine the targets
on which to play the effect. | Effect | |
| duration : Number
Duration of the effect in milliseconds. | Effect | |
| effectTargetHost : mx.effects:IEffectTargetHost
A property that lets you access the target list-based control
of a data effect. | Effect | |
| filter : String
Specifies an algorithm for filtering targets for an effect. | Effect | |
| hideFocusRing : Boolean
Determines whether the effect should hide the focus ring
when starting the effect. | Effect | |
| instanceClass : Class
An object of type Class that specifies the effect
instance class class for this effect class. | Effect | |
| isLoading : Boolean [read-only]
This property is true if the MP3 has been loaded. | SoundEffect | ||
| isPlaying : Boolean [read-only]
A read-only flag which is true if any instances of the effect
are currently playing, and false if none are. | Effect | |
| loops : int = 0
The number of times to play the sound in a loop, where a value of
0 means play the effect once, a value of 1 means play the effect twice,
and so on. | SoundEffect | ||
| panEasingFunction : Function
The easing function for the pan effect. | SoundEffect | ||
| panFrom : Number
Initial pan of the Sound object. | SoundEffect | ||
| panTo : Number
Final pan of the Sound object. | SoundEffect | ||
| perElementOffset : Number
Additional delay, in milliseconds, for effect targets
after the first target of the effect. | Effect | |
| playheadTime : Number
Current time position of the effect. | Effect | |
| relevantProperties : Array
An Array of property names to use when performing filtering. | Effect | |
| relevantStyles : Array
An Array of style names to use when performing filtering. | Effect | |
| repeatCount : int = 1
Number of times to repeat the effect. | Effect | |
| repeatDelay : int = 0
Amount of time, in milliseconds, to wait before repeating the effect. | Effect | |
| sound : Sound [read-only]
The Sound object that the MP3 file has been loaded into. | SoundEffect | ||
| source : Object
The URL or class of the MP3 file to play. | SoundEffect | ||
| startDelay : int = 0
Amount of time, in milliseconds, to wait before starting the effect. | Effect | |
| startTime : Number = 0
The initial position in the MP3 file, in milliseconds,
at which playback should start. | SoundEffect | ||
| suspendBackgroundProcessing : Boolean = false
If true, blocks all background processing
while the effect is playing. | Effect | |
| target : Object
The object to which this effect is applied. | Effect | |
| targets : Array
An Array of objects that are targets for the effect. | Effect | |
| triggerEvent : Event
The Event object passed to this Effect
by the EffectManager when an effect is triggered,
or null if the effect is not being
played by the EffectManager. | Effect | |
| useDuration : Boolean = true
If true, stop the effect
after the time specified by the duration
property has elapsed. | SoundEffect | ||
| volumeEasingFunction : Function
The easing function for the volume effect. | SoundEffect | ||
| volumeFrom : Number
Initial volume of the Sound object. | SoundEffect | ||
| volumeTo : Number
Final volume of the Sound object. | SoundEffect | ||
| Method | Defined By | ||
|---|---|---|---|
SoundEffect(target:Object = null)
Constructor. | SoundEffect | ||
| addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registers an event listener object with an EventDispatcher object so that the listener
receives notification of an event. | EventDispatcher | |
|
Captures the current values of the relevant properties
on the effect's targets and saves them as end values. | Effect | |
|
Captures the current values of the relevant properties
of an additional set of targets
Flex uses this function when a data change
effect is run.
| Effect | |
|
Captures the current values of the relevant properties
on the effect's targets. | Effect | |
|
Creates a single effect instance and initializes it. | Effect | |
|
Takes an Array of target objects and invokes the
createInstance() method on each target. | Effect | |
|
Removes event listeners from an instance
and removes it from the list of instances. | Effect | |
|
Dispatches an event into the event flow. | EventDispatcher | |
|
Interrupts an effect that is currently playing,
and jumps immediately to the end of the effect. | Effect | |
|
Returns an Array of Strings, where each String is the name
of a property changed by this effect. | Effect | |
|
Checks whether the EventDispatcher object has any listeners registered for a specific type
of event. | EventDispatcher | |
|
Indicates whether an object has a specified property defined. | Object | |
|
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
Loads the MP3 if the source property points to a URL. | SoundEffect | ||
|
Pauses the effect until you call the resume() method. | Effect | |
|
Begins playing the effect. | Effect | |
|
Indicates whether the specified property exists and is enumerable. | Object | |
|
Removes a listener from the EventDispatcher object. | EventDispatcher | |
|
Resumes the effect after it has been paused
by a call to the pause() method. | Effect | |
|
Plays the effect in reverse, if the effect is currently playing,
starting from the current position of the effect. | Effect | |
|
Sets the availability of a dynamic property for loop operations. | Object | |
|
Stops the effect, leaving the effect targets in their current state. | Effect | |
|
Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
|
Returns the string representation of the specified object. | Object | |
|
Returns the primitive value of the specified object. | Object | |
|
Checks whether an event listener is registered with this EventDispatcher object or any of
its ancestors for the specified event type. | EventDispatcher | |
| Event | Summary | Defined By | ||
|---|---|---|---|---|
| [broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active. | EventDispatcher | ||
| Dispatched when the sound file finishes loading. | SoundEffect | |||
| [broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive. | EventDispatcher | ||
| Dispatched when one of the effect's instances finishes playing, either when the instance finishes playing or when the effect is interrupted by a call to the end() method. | Effect | ||
| Dispatched when the effect starts playing. | Effect | ||
| Dispatched when the effect has been stopped, which only occurs when the effect is interrupted by a call to the stop() method. | Effect | ||
| Dispatched when ID3 data is available for an MP3 sound file. | SoundEffect | |||
| Dispatched when an error occurs during the loading of the sound file. | SoundEffect | |||
| Dispatched periodically as the sound file loads. | SoundEffect | |||
autoLoad | property |
autoLoad:Boolean| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
If true, load the MP3 file
when the source has been specified.
The default value is true.
Implementation
public function get autoLoad():Boolean public function set autoLoad(value:Boolean):voidbufferTime | property |
public var bufferTime:Number = 1000| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The SoundEffect class uses an internal Sound object to control the MP3 file. This property specifies the minimum number of milliseconds worth of sound data to hold in the Sound object's buffer. The Sound object waits until it has at least this much data before beginning playback, and before resuming playback after a network stall.
The default value is 1000.
isLoading | property |
loops | property |
public var loops:int = 0| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The number of times to play the sound in a loop, where a value of
0 means play the effect once, a value of 1 means play the effect twice,
and so on. If you repeat the MP3 file, it still uses the setting of the
useDuration property to determine the playback time.
The duration property takes precedence
over this property.
If the effect duration is not long enough to play the sound
at least once, the sound does not loop.
The default value is 0.
panEasingFunction | property |
public var panEasingFunction:Function| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The easing function for the pan effect.
Use this function to interpolate between the values
of panFrom and panTo.
panFrom | property |
public var panFrom:Number| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Initial pan of the Sound object. The value can range from -1.0 to 1.0, where -1.0 uses only the left channel, 1.0 uses only the right channel, and 0.0 balances the sound evenly between the two channels.
The default value is 0.0.
panTo | property |
public var panTo:Number| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Final pan of the Sound object. The value can range from -1.0 to 1.0, where -1.0 uses only the left channel, 1.0 uses only the right channel, and 0.0 balances the sound evenly between the two channels.
The default value is 0.0.
sound | property |
source | property |
source:Object| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The URL or class of the MP3 file to play.
If you have already embedded the MP3 file, using the Embed keyword,
you can pass the Class object of the MP3 file to the source property.
Otherwise, specify the full URL to the MP3 file.
Implementation
public function get source():Object public function set source(value:Object):voidstartTime | property |
public var startTime:Number = 0| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The initial position in the MP3 file, in milliseconds, at which playback should start.
The default value is 0.
useDuration | property |
public var useDuration:Boolean = true| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
If true, stop the effect
after the time specified by the duration
property has elapsed.
If false, stop the effect
after the MP3 finishes playing or looping.
The default value is true.
volumeEasingFunction | property |
public var volumeEasingFunction:Function| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
The easing function for the volume effect.
This function is used to interpolate between the values
of volumeFrom and volumeTo.
volumeFrom | property |
public var volumeFrom:Number| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Initial volume of the Sound object. Value can range from 0.0 to 1.0.
The default value is 1.
volumeTo | property |
public var volumeTo:Number| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Final volume of the Sound object. Value can range from 0.0 to 1.0.
The default value is 1.
SoundEffect | () | Constructor |
load | () | method |
public function load():void| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Loads the MP3 if the source property points to a URL.
complete | Event |
flash.events.Eventproperty Event.type =
flash.events.Event.COMPLETE| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Dispatched when the sound file finishes loading.
TheEvent.COMPLETE constant defines the value of the type property of a complete event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The network object that has completed loading. |
id3 | Event |
flash.events.Eventproperty Event.type =
flash.events.Event.ID3| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Dispatched when ID3 data is available for an MP3 sound file.
TheEvent.ID3 constant defines the value of the type property of an id3 event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The Sound object loading the MP3 for which ID3 data is now available.
The target is not always the object in the display list
that registered the event listener. Use the currentTarget
property to access the object in the display list that is currently processing the event. |
ioError | Event |
flash.events.IOErrorEventproperty IOErrorEvent.type =
flash.events.IOErrorEvent.IO_ERROR| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Dispatched when an error occurs during the loading of the sound file.
Defines the value of thetype property of an ioError event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
errorID | A reference number associated with the specific error (AIR only). |
target | The network object experiencing the input/output error. |
text | Text to be displayed as an error message. |
progress | Event |
flash.events.ProgressEventproperty ProgressEvent.type =
flash.events.ProgressEvent.PROGRESS| Language Version: | ActionScript 3.0 |
| Product Version: | Flex 3 |
| Runtime Versions: | Flash Player 9, AIR 1.1 |
Dispatched periodically as the sound file loads.
Within the event object, you can access the number of bytes
currently loaded and the total number of bytes to load.
The event is not guaranteed to be dispatched, which means that
the complete event might be dispatched
without any progress events being dispatched.
type property of a progress event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
bytesLoaded | The number of items or bytes loaded at the time the listener processes the event. |
bytesTotal | The total number of items or bytes that ultimately will be loaded if the loading process succeeds. |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The object reporting progress. |
<?xml version="1.0"?>
<!-- Simple example to demonstrate the SoundEffect effect. -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Declarations>
<mx:SoundEffect id="mySounds" source="@Embed(source='assets/jazz.mp3')"/>
</fx:Declarations>
<s:Panel title="Sound Effect Example" width="75%" height="75%" >
<s:VGroup left="20" right="20" top="20" bottom="20">
<s:Label width="100%" color="blue"
text="Click on the phone to hear the sound effect."/>
<mx:Image id="flex" source="@Embed(source='assets/Nokia_6630.png')"
mouseDownEffect="{mySounds}"/>
</s:VGroup>
</s:Panel>
</s:Application>
Wed Nov 21 2018, 06:34 AM -08:00