apache-flex - 动作脚本中的静音扬声器

Question

在以下代码中如何使扬声器静音

<?xml version="1.0" encoding="utf-8"?>
<mx:Application
xmlns:mx="http://www.adobe.com/2006/mxml"
layout="absolute"
width="300"
height="100"
creationComplete="init()">

<mx:Script>
<![CDATA[
 import mx.controls.Alert;
 import mx.media.*;
 import flash.net.NetStream;

 private var myMic:Microphone;
 private var recordingState:String = "idle";

 private function init():void {

    myMic = Microphone.getMicrophone();
    myMic.setSilenceLevel(0);
    myMic.rate = 44;
    myMic.gain = 100;
    myMic.setUseEchoSuppression(true);
    micLevel.visible = true;
    //Security.showSettings(SecurityPanel.MICROPHONE);
    myMic.setLoopBack(true);
    if (myMic != null)
    {
       myMic.setUseEchoSuppression(true);
       micLevel.setProgress(myMic.activityLevel, 100);
       addEventListener(Event.ENTER_FRAME, showMicLevel);
       //micLevel.setProgress(myMic.activityLevel, 100);
    }

 }

 private function showMicLevel(event:Event):void{
    switch (recordingState){
       case "idle" :
          micLevel.setProgress(myMic.activityLevel, 100);
          break;
    }

   }







 ]]>
 </mx:Script>

<mx:ProgressBar x="0" y="36" mode="manual" id="micLevel" label="" labelPlacement="bottom" width="100" fontSize="10" fontWeight="normal"/>

Answer 1

如果您只想禁用麦克风中的声音进入扬声器，请执行

myMic.setLoopBack(false);

这将禁用麦克风检测到的声音在扬声器中播放。

编辑1：

//use the function to disable sound completely.


 private function disableSound():void
 {
    var newSoundTransform:SoundTransform=new SoundTransform();
    newSoundTransform.volume=0;
    this.soundTransform=newSoundTransform;
}

在 init() 函数中调用上述函数。这将完全禁用来自应用程序的所有声音。