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Chapter 2: ActionScript Language Reference
Microphone.silenceLevel
Availability
Flash Player 6.
Usage
active_mic
.silenceLevel
:Number
Description
Read-only property; an integer that specifies the amount of sound required to activate the
microphone and invoke
Microphone.onActivity(true)
. The default value is 10.
Example
The following example changes the silence level based on the user’s input in a NumericStepper
instance called
silenceLevel_nstep
. The ProgressBar instance called
silenceLevel_pb
modifies its appearance depending on whether the audio stream is considered silent. Otherwise, it
displays the activity level of the audio stream.
var silenceLevel_pb:mx.controls.ProgressBar;
var silenceLevel_nstep:mx.controls.NumericStepper;
this.createEmptyMovieClip("sound_mc", this.getNextHighestDepth());
var active_mic:Microphone = Microphone.get();
sound_mc.attachAudio(active_mic);
silenceLevel_pb.label = "Activity level: %3";
silenceLevel_pb.mode = "manual";
silenceLevel_nstep.minimum = 0;
silenceLevel_nstep.maximum = 100;
silenceLevel_nstep.value = active_mic.silenceLevel;
var nstepListener:Object = new Object();
nstepListener.change = function(evt:Object) {
active_mic.setSilenceLevel(evt.target.value, active_mic.silenceTimeOut);
};
silenceLevel_nstep.addEventListener("change", nstepListener);
this.onEnterFrame = function() {
silenceLevel_pb.setProgress(active_mic.activityLevel, 100);
};
active_mic.onActivity = function(active:Boolean) {
if (active) {
silenceLevel_pb.indeterminate = false;
silenceLevel_pb.setStyle("themeColor", "haloGreen");
silenceLevel_pb.label = "Activity level: %3";
} else {
silenceLevel_pb.indeterminate = true;
silenceLevel_pb.setStyle("themeColor", "0xFF0000");
silenceLevel_pb.label = "Activity level: (inactive)";
}
};
Summary of Contents for FLASH MX
Page 1: ...ActionScript Language Reference ...
Page 20: ...20 Contents ...
Page 24: ...24 Chapter 1 Introduction ...
Page 145: ...Button onKeyDown 145 See also Button onKeyUp ...
Page 202: ...202 Chapter 2 ActionScript Language Reference See also break default strict equality switch ...
Page 282: ...282 Chapter 2 ActionScript Language Reference See also break continue while ...
Page 383: ...LoadVars addRequestHeader 383 See also XML addRequestHeader ...
Page 388: ...388 Chapter 2 my_lv load place a valid URL pointing to a text file here ...
Page 463: ...Microphone setRate 463 See also Microphone rate ...
Page 469: ...Microphone silenceLevel 469 See also Microphone gain Microphone setSilenceLevel ...
Page 480: ...480 Chapter 2 ActionScript Language Reference See also Mouse addListener ...
Page 529: ...MovieClip globalToLocal 529 See also MovieClip getBounds MovieClip localToGlobal ...
Page 612: ...612 Chapter 2 ActionScript Language Reference See also MovieClipLoader onLoadStart ...
Page 623: ...NetConnection class 623 See also NetStream class Video attachVideo ...
Page 649: ...Number 649 See also NaN Number class ...
Page 679: ...on 679 on release trace X this _x trace Y this _y stopDrag See also onClipEvent ...
Page 683: ...onUpdate 683 buttonLabel textColor my_mc labelColor ...
Page 788: ...788 Chapter 2 ActionScript Language Reference See also private public ...
Page 1001: ...Video height 1001 my_mc _height my_mc my_video height See also MovieClip _height Video width ...
Page 1022: ...1022 Chapter 2 ActionScript Language Reference See also XML createElement ...
Page 1057: ...XML xmlDecl 1057 See also XML docTypeDecl XML toString ...
Page 1070: ...1070 Chapter 2 ActionScript Language Reference ...
Page 1104: ...1104 Appendix Deprecated Language Elements ...