リング変調によるボイスチェンジャ

by hirossy 02 Dec 2009

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FP10.1 Microphone ボイスチェンジャ
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/**
 * Copyright hirossy ( http://wonderfl.net/user/hirossy )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/2aYy
 */

// forked from hirossy's forked from: マイク入力テスト(FP10.1専用) 書き換えてみた
// forked from TheCoolMuseum's マイク入力テスト(FP10.1専用)
package {
	import flash.display.*;
	import flash.events.SampleDataEvent;
	import flash.media.Microphone;
	import flash.media.Sound;
	
    public class FlashTest extends Sprite
    {
		private var buffer:Array = [];
		private var mic:Microphone;
		private var sound:Sound;
		
		private var depth:Number = 1; // parameter 1
		private var rate:Number = 160;  // parameter 2
		private var count:int = 0;
		
        public function FlashTest()
        {
			mic = Microphone.getMicrophone();
			mic.rate = 44;
			mic.setUseEchoSuppression(true);
			mic.addEventListener(SampleDataEvent.SAMPLE_DATA, sampling);
				
			sound = new Sound();
			sound.addEventListener(SampleDataEvent.SAMPLE_DATA, playing);
			sound.play();
		}
		
		private function sampling(event:SampleDataEvent):void
		{
			while (event.data.bytesAvailable)
			{
				buffer.push(event.data.readFloat());
			}
		}
		
		private function playing(event:SampleDataEvent):void
		{
			for (var i:int=0; i<8192; i++)
			{
				var value:Number = 0;
				
				if (buffer.length > 0)
					value = buffer.shift();
				
				var keisu:Number = depth * Math.sin(2.0 * Math.PI * rate * count / 44100);
				value = value * keisu;
				
				event.data.writeFloat(value);
				event.data.writeFloat(value);
				
				count = (count++ > 44100)? 0:count;
			}
		}
	}
}