I would use a microphone to record a sound, but yes you can use headphones too, since they are essentially the same thing. Just plug in your headphones into a microphone socket and speak into an ear pad.

If you want to record sound locally with AS3 have a look at: http://www.bytearray.org/?p=1858

In Flash I have a Button called "button" and a TextField called "textfield".

import flash.events.MouseEvent;
import flash.external.ExternalInterface;
 
button.addEventListener(MouseEvent.CLICK, buttonClick);
 
// on button click call Javascript
function buttonClick(e:MouseEvent):void
{
    ExternalInterface.call("callFromFlash", "Hello from Flash");
}
 
// register call from Javascript
ExternalInterface.addCallback("callFromJS", callFromJS);
 
// display the message from Javascript
function callFromJS(s:String):void
{
    textfield.text = s;
}

In Javascript I use jQuery. If you want to use Javascript you'd better use it (or any other framework) or you won't have any hair left after fighting with certain Microsoft browsers In HTML I have a button with the ID "button".

// display the message from Flash
          function callFromFlash(arg){
                alert(arg);
            }
            
            jQuery(function($){init()});
            
            function init(){
                $("#button").click(buttonClick);
            }
// on button click send a message to Flash            
            function buttonClick(e){
                e.preventDefault();
                $("#flash")[0].callFromJS("Hello from JS");
            }

Here is a good tutorial on recording microphone input:

http://active.tutsplus.com/tutorials/actionscript/create-a-useful-audi o-recorder-app-in-actionscript-3/

Hi,

It is possible to record voice using headphone and microphone. If you want to learn more about how to record voice to CD or save voice as audio file, you might go to search for tutorials on the websites. As it is said that you need to plugin your headphone onto USB socket and speak it. To start to record, you need to click buttons.