User Guide

Microphone class 41

Description

Property (read-only); a numeric value that specifies the amount of sound the microphone is

detecting. Values range from 0 (no sound is being detected) to 100 (very loud sound is being

detected). The value of this property can help you determine a good value to pass to the

Microphone.setSilenceLevel() method.

If the microphone is available but is not yet being used because neither

MovieClip.attachAudio() nor NetStream.attachAudio() has been called, this property

is set to -1.

Example

The following example displays the activity level of the current microphone in a ProgressBar

instance called

activityLevel_pb:

var activityLevel_pb:mx.controls.ProgressBar;

activityLevel_pb.mode = "manual";

activityLevel_pb.label = "Activity Level: %3%%";

activityLevel_pb.setStyle("themeColor", "0xFF0000");

this.createEmptyMovieClip("sound_mc", this.getNextHighestDepth());

var active_mic:Microphone = Microphone.get();

sound_mc.attachAudio(active_mic);

this.onEnterFrame = function() {

activityLevel_pb.setProgress(active_mic.activityLevel, 100);

};

active_mic.onActivity = function(active:Boolean) {

if (active) {

var haloTheme_str:String = "haloGreen";

} else {

var haloTheme_str:String = "0xFF0000";

}

activityLevel_pb.setStyle("themeColor", haloTheme_str);

};

The MovieClip.getNextHighestDepth() method used in this example requires Flash Player

7 or later. If your SWF file includes a v2 component (version 2 of the Macromedia

Component Architecture), use the DepthManager class from the component framework

instead of the

MovieClip.getNextHighestDepth() method.