flash air 声音录制

flash air 不使用FMS(flash media server)麦克风语音录制并保存录音文件到本地

flash 桌面应用程序
Flex SDK 使用 Apache Flex 1.14.1
语音录制用 wav 格式转成 mp3格式
参考：
- 声音保存为 wav 格式： https://www.adobe.com/devnet/air/flex/articles/using_mic_api.html
- wav数据转mp3： https://github.com/kikko/Shine-MP3-Encoder-on-AS3-Alchemy

主程序代码：

详细代码已上传至：https://github.com/Mr-hongji/VoiceRecording

<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx"creationComplete="windowedapplication1_creationCompleteHandler(event)"><fx:Script><![CDATA[import com.adobe.audio.format.WAVWriter;import flash.utils.getTimer;import mx.core.UIComponent;import mx.events.FlexEvent;import fr.kikko.lab.ShineMP3Encoder;private var _myFile:FileReference;private var _voice:ByteArray;private var mic:Microphone;protected function windowedapplication1_creationCompleteHandler(event:FlexEvent):void{trace(Microphone.isSupported + "");trace(Microphone.names.length);_myFile = new FileReference();mic =  Microphone.getEnhancedMicrophone();//mic = Microphone.getMicrophone();mic.rate = 44;Security.showSettings("2");mic.setLoopBack(false);if (mic != null) {mic.setUseEchoSuppression(true);mic.addEventListener(ActivityEvent.ACTIVITY, activityHandler);mic.addEventListener(StatusEvent.STATUS, statusHandler);}}private function startRecoder():void{_voice = new ByteArray();mic.addEventListener(SampleDataEvent.SAMPLE_DATA, sampleDataHandler);}private function sampleDataHandler(e:SampleDataEvent):void{_voice.writeBytes( e.data );}private function activityHandler(event:ActivityEvent):void {trace("activityHandler: " + event);}private function statusHandler(event:StatusEvent):void{trace("statusHandler: " + event);}private function stopRecoder():void{mic.removeEventListener(SampleDataEvent.SAMPLE_DATA, startRecoder);_voice.position = 0 ;//saveFile();convertToMP3();}protected function saveFile():void { var outputFile:File = File.desktopDirectory.resolvePath("123.wav"); var outputStream:FileStream = new FileStream(); var wavWriter:WAVWriter = new WAVWriter(); _voice.position = 0;  // rewind to the beginning of the sample wavWriter.numOfChannels = 1; // set the inital properties of the Wave Writer wavWriter.sampleBitRate = 16; wavWriter.samplingRate = 44100; outputStream.open(outputFile, FileMode.WRITE);  //write out our file to disk. wavWriter.processSamples(outputStream, _voice, 44100, 1); // convert our ByteArray to a WAV file. outputStream.close();} private var _mp3Encoder:ShineMP3Encoder;private var _timer: int ;private function convertToMP3(): void{var wavWrite:WAVWriter = new WAVWriter();wavWrite.numOfChannels = 1 ;wavWrite.sampleBitRate = 16 ;wavWrite.samplingRate = 44100 ;var wav:ByteArray = new ByteArray();_timer = getTimer();wavWrite.processSamples(wav, _voice, 44100 , 1 );trace( 'convert to a WAV used: ' + (getTimer() - _timer) + 'ms' );wav.position = 0 ;trace( 'WAV size:' + wav.bytesAvailable + ' bytes' );trace( 'Asynchronous convert to MP3 now' );_timer = getTimer();_mp3Encoder = new ShineMP3Encoder( wav );_mp3Encoder.addEventListener(Event.COMPLETE, onEncoded);_mp3Encoder.addEventListener(ProgressEvent.PROGRESS, onEncoding);_mp3Encoder.addEventListener(ErrorEvent.ERROR, onEncodeError);_mp3Encoder.start();}private function onEncoded(e:Event): void{trace( 'encode MP3 complete used: ' + (getTimer() - _timer) + 'ms' );_mp3Encoder.mp3Data.position = 0 ;trace( 'MP3 size:' + _mp3Encoder.mp3Data.bytesAvailable + ' bytes' );trace( 'press <key>: <s>ave to MP3 or <r>ecord again' );_mp3Encoder.saveAs(new Date().getTime() + ".mp3");}private function onEncoding(e:ProgressEvent): void{trace( 'encoding MP3... ' + Number (e.bytesLoaded / e.bytesTotal * 100 ).toFixed( 2 ) + '%' , true );}private function onEncodeError(e:ErrorEvent): void{trace( 'encode MP3 error ' + e.text);}]]></fx:Script><s:Button click="startRecoder()" label="开始录制"/><s:Button click="stopRecoder()" label="停止录制" x="200"/>
</s:WindowedApplication>

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flash air 声音录制

flash air 不使用FMS(flash media server)麦克风语音录制并保存录音文件到本地

主程序代码：

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