android 麦克风录音输出

添加权限

    <!-- AUX --><uses-permission android:name="android.permission.RECORD_AUDIO" /><!-- write --><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

一、录音（存文件）输出

1、录音至本地文件

import android.media.MediaRecorder;
import android.util.Log;import java.io.File;
import java.io.IOException;/*** @description* create by 2022/7/28 20:07* 录音*/
public class MicrophoneRecording {private static final String TAG = "MicrophoneRecording";private MediaRecorder mRecorder;private File audioFile;public void startRecording() {mRecorder = new MediaRecorder();mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);mRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);try {audioFile = File.createTempFile("recording", ".amr");mRecorder.setOutputFile(audioFile.getAbsolutePath());mRecorder.prepare();Log.d(TAG, "startRecording");} catch (IOException e) {e.printStackTrace();}mRecorder.start();}public String getAudioFile() {return this.audioFile.getAbsolutePath();}public void stopRecording() {if (mRecorder != null) {mRecorder.stop();mRecorder.release();mRecorder = null;}}}

2、音源播放器

import android.media.MediaPlayer;
import android.util.Log;import java.io.IOException;/*** @description* create by 2022/7/28 20:09*  播放*/
public class AudioSourcePlay {private static final String TAG = "AudioSourcePlay";private MediaPlayer mPlayer;public void startPlaying(String fileName) {mPlayer = new MediaPlayer();try {mPlayer.setDataSource(fileName);mPlayer.prepare();mPlayer.start();Log.d(TAG, "startPlaying");} catch (IOException e) {e.printStackTrace();}}public void stopPlaying() {if (mPlayer != null) {mPlayer.release();mPlayer = null;}Log.d(TAG, "stopPlaying");}
}

3、调用

        ok.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {//开启录音startRecording();}});cancel.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// 停止录音stopRecording();}});mUpgrade.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {// 播放AudioSourcePlay();}});private void startRecording() {mMicrophoneRecording = new MicrophoneRecording();mMicrophoneRecording.startRecording();Log.d("ModuleService", "openMicrophone: ");}private void stopRecording(){mMicrophoneRecording.stopRecording();Log.d("ModuleService", "stopMicrophone: ");}private void AudioSourcePlay(){mAudioSourcePlay = new AudioSourcePlay();mAudioSourcePlay.startPlaying(mMicrophoneRecording.getAudioFile());Log.d("ModuleService", "playing: ");}@Overrideprotected void onDestroy() {super.onDestroy();if (mMicrophoneRecording != null) {stopRecording();mMicrophoneRecording = null;}if (mAudioSourcePlay != null){mAudioSourcePlay.stopPlaying();mAudioSourcePlay = null;}}

二、实时录音并播放

1、

    // 线程处理数据流private  class RecordThread extends Thread{static final int frequency = 44100;static final int channelConfiguration = AudioFormat.CHANNEL_CONFIGURATION_MONO;static final int audioEncoding = AudioFormat.ENCODING_PCM_16BIT;@Overridepublic void run() {int recBufSize = AudioRecord.getMinBufferSize(frequency, channelConfiguration, audioEncoding)*2;int plyBufSize = AudioTrack.getMinBufferSize(frequency, channelConfiguration, audioEncoding)*2;audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, frequency, channelConfiguration, audioEncoding, recBufSize);audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, frequency, channelConfiguration, audioEncoding, plyBufSize, AudioTrack.MODE_STREAM);byte[] recBuf = new byte[recBufSize];audioRecord.startRecording();audioTrack.play();while(true){int readLen = audioRecord.read(recBuf, 0, recBufSize);audioTrack.write(recBuf, 0, readLen);}}}

2、调用

    private MicrophoneRecording mMicrophoneRecording;private AudioSourcePlay mAudioSourcePlay;private  AudioRecord audioRecord;private  AudioTrack audioTrack;      mUpgrade.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {// 播放RecordThread recordThread = new RecordThread();recordThread.start();}});@Overrideprotected void onDestroy() {super.onDestroy();audioTrack.stop();audioRecord.stop();}

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