Microphone.activityLevel

Availability

Flash Player 6.
Flash Media Server (not required).

Usage

public activityLevel : Number [read-only]

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.

Microphone.activityLevel

Availability

Usage

Description

Example

See also