├── .gitignore ├── .idea ├── compiler.xml ├── copyright │ └── profiles_settings.xml ├── dictionaries │ └── zhangtao.xml ├── encodings.xml ├── gradle.xml ├── misc.xml ├── modules.xml ├── runConfigurations.xml └── vcs.xml ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── imooc │ │ └── pcmtest │ │ └── ExampleInstrumentedTest.java │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── com │ │ │ └── imooc │ │ │ └── pcmtest │ │ │ ├── AudioParam.java │ │ │ ├── AudioUtil.java │ │ │ ├── MainActivity.java │ │ │ └── VoicePlayer.java │ └── res │ │ ├── layout │ │ └── activity_main.xml │ │ ├── mipmap-hdpi │ │ └── ic_launcher.png │ │ ├── mipmap-mdpi │ │ ├── ic_launcher.png │ │ ├── max.png │ │ ├── mid.png │ │ └── min.png │ │ ├── mipmap-xhdpi │ │ └── ic_launcher.png │ │ ├── mipmap-xxhdpi │ │ └── ic_launcher.png │ │ ├── mipmap-xxxhdpi │ │ └── ic_launcher.png │ │ ├── values-w820dp │ │ └── dimens.xml │ │ └── values │ │ ├── colors.xml │ │ ├── dimens.xml │ │ ├── strings.xml │ │ └── styles.xml │ └── test │ └── java │ └── com │ └── imooc │ └── pcmtest │ └── ExampleUnitTest.java ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | <<<<<<< HEAD 2 | *.iml 3 | .gradle 4 | /local.properties 5 | /.idea/workspace.xml 6 | /.idea/libraries 7 | .DS_Store 8 | /build 9 | /captures 10 | .externalNativeBuild 11 | ======= 12 | # Built application files 13 | *.apk 14 | *.ap_ 15 | 16 | # Files for the ART/Dalvik VM 17 | *.dex 18 | 19 | # Java class files 20 | *.class 21 | 22 | # Generated files 23 | bin/ 24 | gen/ 25 | out/ 26 | 27 | # Gradle files 28 | .gradle/ 29 | build/ 30 | 31 | # Local configuration file (sdk path, etc) 32 | local.properties 33 | 34 | # Proguard folder generated by Eclipse 35 | proguard/ 36 | 37 | # Log Files 38 | *.log 39 | 40 | # Android Studio Navigation editor temp files 41 | .navigation/ 42 | 43 | # Android Studio captures folder 44 | captures/ 45 | 46 | # Intellij 47 | *.iml 48 | .idea/workspace.xml 49 | .idea/tasks.xml 50 | .idea/gradle.xml 51 | .idea/dictionaries 52 | .idea/libraries 53 | 54 | # Keystore files 55 | *.jks 56 | 57 | # External native build folder generated in Android Studio 2.2 and later 58 | .externalNativeBuild 59 | 60 | # Google Services (e.g. APIs or Firebase) 61 | google-services.json 62 | 63 | # Freeline 64 | freeline.py 65 | freeline/ 66 | freeline_project_description.json 67 | >>>>>>> f26647e8586f1bdb835b1637790771015bee031b 68 | -------------------------------------------------------------------------------- /.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /.idea/copyright/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /.idea/dictionaries/zhangtao.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /.idea/encodings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 18 | 19 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 19 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | Android 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 62 | 63 | 64 | 65 | 66 | 67 | 72 | 73 | 74 | 75 | 76 | 77 | -------------------------------------------------------------------------------- /.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Android_PCM_Record_Play 2 | Android使用AudioRecord录制pcm音频原始数据以及使用AudioTrack播放 3 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 25 5 | buildToolsVersion "25.0.2" 6 | defaultConfig { 7 | applicationId "com.imooc.pcmtest" 8 | minSdkVersion 21 9 | targetSdkVersion 25 10 | versionCode 1 11 | versionName "1.0" 12 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | 22 | dependencies { 23 | compile fileTree(dir: 'libs', include: ['*.jar']) 24 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 25 | exclude group: 'com.android.support', module: 'support-annotations' 26 | }) 27 | compile 'com.android.support:appcompat-v7:25.3.1' 28 | testCompile 'junit:junit:4.12' 29 | } 30 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /Users/zhangtao/Library/Android/sdk/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/imooc/pcmtest/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.imooc.pcmtest; 2 | 3 | import android.content.Context; 4 | import android.support.test.InstrumentationRegistry; 5 | import android.support.test.runner.AndroidJUnit4; 6 | 7 | import org.junit.Test; 8 | import org.junit.runner.RunWith; 9 | 10 | import static org.junit.Assert.*; 11 | 12 | /** 13 | * Instrumentation test, which will execute on an Android device. 14 | * 15 | * @see Testing documentation 16 | */ 17 | @RunWith(AndroidJUnit4.class) 18 | public class ExampleInstrumentedTest { 19 | @Test 20 | public void useAppContext() throws Exception { 21 | // Context of the app under test. 22 | Context appContext = InstrumentationRegistry.getTargetContext(); 23 | 24 | assertEquals("com.imooc.pcmtest", appContext.getPackageName()); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 7 | 8 | 9 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | -------------------------------------------------------------------------------- /app/src/main/java/com/imooc/pcmtest/AudioParam.java: -------------------------------------------------------------------------------- 1 | package com.imooc.pcmtest; 2 | 3 | /** 4 | * Created by zhangtao on 17/8/27. 5 | */ 6 | 7 | public class AudioParam 8 | { 9 | public int mFrequency; // 采样率 10 | public int mChannel; // 声道 11 | public int mSampleBit; // 采样精度 12 | } 13 | -------------------------------------------------------------------------------- /app/src/main/java/com/imooc/pcmtest/AudioUtil.java: -------------------------------------------------------------------------------- 1 | package com.imooc.pcmtest; 2 | 3 | import android.media.AudioFormat; 4 | import android.media.AudioRecord; 5 | import android.media.MediaRecorder; 6 | import android.os.Environment; 7 | import java.io.BufferedOutputStream; 8 | import java.io.File; 9 | import java.io.FileInputStream; 10 | import java.io.FileNotFoundException; 11 | import java.io.FileOutputStream; 12 | import java.io.IOException; 13 | import java.io.OutputStream; 14 | 15 | /** 16 | * Created by zhangtao on 17/8/27. 17 | */ 18 | 19 | public class AudioUtil 20 | { 21 | private static AudioUtil mInstance; 22 | private AudioRecord recorder; 23 | //声音源 24 | private static int audioSource = MediaRecorder.AudioSource.MIC; 25 | //录音的采样频率 26 | private static int audioRate = 44100; 27 | //录音的声道，单声道 28 | private static int audioChannel = AudioFormat.CHANNEL_IN_STEREO; 29 | //量化的精度 30 | private static int audioFormat = AudioFormat.ENCODING_PCM_16BIT; 31 | //缓存的大小 32 | private static int bufferSize = AudioRecord.getMinBufferSize(audioRate , audioChannel , audioFormat); 33 | //记录播放状态 34 | private boolean isRecording = false; 35 | //数字信号数组 36 | private byte[] noteArray; 37 | //PCM文件 38 | private File pcmFile; 39 | //wav文件 40 | private File wavFile; 41 | //文件输出流 42 | private OutputStream os; 43 | //文件根目录 44 | private String basePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/record/"; 45 | //wav文件目录 46 | private String outFileName = basePath + "/encode.wav"; 47 | //pcm文件目录 48 | private String inFileName = basePath + "/encode.pcm"; 49 | 50 | private AudioUtil() 51 | { 52 | //创建文件 53 | createFile(); 54 | recorder = new AudioRecord(audioSource , audioRate , 55 | audioChannel , audioFormat , bufferSize); 56 | } 57 | 58 | //创建文件夹,首先创建目录，然后创建对应的文件 59 | private void createFile() 60 | { 61 | File baseFile = new File(basePath); 62 | if (!baseFile.exists()) 63 | baseFile.mkdirs(); 64 | pcmFile = new File(basePath + "/encode.pcm"); 65 | wavFile = new File(basePath + "/encode.wav"); 66 | 67 | if (pcmFile.exists()) 68 | pcmFile.delete(); 69 | if (wavFile.exists()) 70 | wavFile.delete(); 71 | 72 | try 73 | { 74 | pcmFile.createNewFile(); 75 | wavFile.createNewFile(); 76 | } 77 | catch (IOException e) 78 | { 79 | e.printStackTrace(); 80 | } 81 | } 82 | 83 | public synchronized static AudioUtil getInstance() 84 | { 85 | if (mInstance == null) 86 | { 87 | mInstance = new AudioUtil(); 88 | } 89 | return mInstance; 90 | } 91 | 92 | //读取录音数字数据线程 93 | class WriteThread implements Runnable 94 | { 95 | @Override 96 | public void run() 97 | { 98 | writeData(); 99 | } 100 | } 101 | 102 | //录音线程执行体 103 | private void writeData() 104 | { 105 | noteArray = new byte[bufferSize]; 106 | //建立文件输出流 107 | try 108 | { 109 | os = new BufferedOutputStream(new FileOutputStream(pcmFile)); 110 | } 111 | catch (FileNotFoundException e) 112 | { 113 | e.printStackTrace(); 114 | } 115 | 116 | while (isRecording) 117 | { 118 | int recordSize = recorder.read(noteArray , 0 , bufferSize); 119 | if (recordSize > 0) 120 | { 121 | try 122 | { 123 | os.write(noteArray); 124 | } 125 | catch (IOException e) 126 | { 127 | e.printStackTrace(); 128 | } 129 | } 130 | } 131 | 132 | if (os != null) 133 | { 134 | try 135 | { 136 | os.close(); 137 | } 138 | catch (IOException e) 139 | { 140 | e.printStackTrace(); 141 | } 142 | } 143 | } 144 | 145 | //开始录音 146 | public void startRecord() 147 | { 148 | isRecording = true; 149 | recorder.startRecording(); 150 | } 151 | 152 | //记录数据 153 | public void recordData() 154 | { 155 | new Thread(new WriteThread()).start(); 156 | } 157 | 158 | //停止录音 159 | public void stopRecord() 160 | { 161 | if (recorder != null) 162 | { 163 | isRecording = false; 164 | recorder.stop(); 165 | recorder.release(); 166 | } 167 | } 168 | 169 | //将pcm文件转换为wav文件 170 | public void convertWavFile() 171 | { 172 | FileInputStream in = null; 173 | FileOutputStream out = null; 174 | 175 | long totalAudioLen; 176 | long totalDataLen; 177 | long longSampleRate = AudioUtil.audioRate; 178 | int channels = 2; 179 | long byteRate = 16 * AudioUtil.audioRate * channels / 8; 180 | byte[] data = new byte[bufferSize]; 181 | 182 | try 183 | { 184 | in = new FileInputStream(inFileName); 185 | out = new FileOutputStream(outFileName); 186 | totalAudioLen = in.getChannel().size(); 187 | //由于不包括RIFF和WAV 188 | totalDataLen = totalAudioLen + 36; 189 | writeWaveFileHeader(out , totalAudioLen , totalDataLen , longSampleRate , channels , byteRate); 190 | while (in.read(data) != -1) 191 | { 192 | out.write(data); 193 | } 194 | 195 | in.close(); 196 | out.close(); 197 | } 198 | catch (IOException e) 199 | { 200 | e.printStackTrace(); 201 | } 202 | } 203 | 204 | private void writeWaveFileHeader(FileOutputStream out, long totalAudioLen, long totalDataLen, 205 | long longSampleRate, int channels, long byteRate) throws IOException 206 | { 207 | byte[] header = new byte[44]; 208 | header[0] = 'R'; // RIFF 209 | header[1] = 'I'; 210 | header[2] = 'F'; 211 | header[3] = 'F'; 212 | header[4] = (byte) (totalDataLen & 0xff);//数据大小 213 | header[5] = (byte) ((totalDataLen >> 8) & 0xff); 214 | header[6] = (byte) ((totalDataLen >> 16) & 0xff); 215 | header[7] = (byte) ((totalDataLen >> 24) & 0xff); 216 | header[8] = 'W';//WAVE 217 | header[9] = 'A'; 218 | header[10] = 'V'; 219 | header[11] = 'E'; 220 | //FMT Chunk 221 | header[12] = 'f'; // 'fmt ' 222 | header[13] = 'm'; 223 | header[14] = 't'; 224 | header[15] = ' ';//过渡字节 225 | //数据大小 226 | header[16] = 16; // 4 bytes: size of 'fmt ' chunk 227 | header[17] = 0; 228 | header[18] = 0; 229 | header[19] = 0; 230 | //编码方式 10H为PCM编码格式 231 | header[20] = 1; // format = 1 232 | header[21] = 0; 233 | //通道数 234 | header[22] = (byte) channels; 235 | header[23] = 0; 236 | //采样率，每个通道的播放速度 237 | header[24] = (byte) (longSampleRate & 0xff); 238 | header[25] = (byte) ((longSampleRate >> 8) & 0xff); 239 | header[26] = (byte) ((longSampleRate >> 16) & 0xff); 240 | header[27] = (byte) ((longSampleRate >> 24) & 0xff); 241 | //音频数据传送速率,采样率*通道数*采样位数/8 242 | header[28] = (byte) (byteRate & 0xff); 243 | header[29] = (byte) ((byteRate >> 8) & 0xff); 244 | header[30] = (byte) ((byteRate >> 16) & 0xff); 245 | header[31] = (byte) ((byteRate >> 24) & 0xff); 246 | //数据块的调整数（按字节算的），其值为通道数×每样本的数据位值／8 247 | header[32] = (byte) (16 / 8); 248 | header[33] = 0; 249 | //每个样本的数据位数 250 | header[34] = 16; 251 | header[35] = 0; 252 | //Data chunk 253 | header[36] = 'd';//data 254 | header[37] = 'a'; 255 | header[38] = 't'; 256 | header[39] = 'a'; 257 | //语音数据大小 258 | header[40] = (byte) (totalAudioLen & 0xff); 259 | header[41] = (byte) ((totalAudioLen >> 8) & 0xff); 260 | header[42] = (byte) ((totalAudioLen >> 16) & 0xff); 261 | header[43] = (byte) ((totalAudioLen >> 24) & 0xff); 262 | out.write(header, 0, 44); 263 | } 264 | } 265 | -------------------------------------------------------------------------------- /app/src/main/java/com/imooc/pcmtest/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.imooc.pcmtest; 2 | 3 | import android.media.AudioFormat; 4 | import android.media.AudioManager; 5 | import android.media.AudioTrack; 6 | import android.os.Environment; 7 | import android.support.v7.app.AppCompatActivity; 8 | import android.os.Bundle; 9 | import android.util.Log; 10 | import android.view.View; 11 | import android.widget.Button; 12 | import java.io.File; 13 | import java.io.FileInputStream; 14 | import java.io.IOException; 15 | import java.util.concurrent.ExecutorService; 16 | import java.util.concurrent.Executors; 17 | 18 | public class MainActivity extends AppCompatActivity 19 | { 20 | private Button mStartRecordBtn; 21 | private Button mStopRecordBtn; 22 | private Button mPlayAudioBtn; 23 | private Button mStopAudioBtn; 24 | 25 | private AudioUtil mAudioUtil; 26 | private static final int BUFFER_SIZE = 1024 * 2; 27 | private byte[] mBuffer; 28 | private File mAudioFile; 29 | private ExecutorService mExecutorService; 30 | private static final String TAG = "MainActivity"; 31 | 32 | @Override 33 | protected void onCreate(Bundle savedInstanceState) 34 | { 35 | super.onCreate(savedInstanceState); 36 | setContentView(R.layout.activity_main); 37 | 38 | mStartRecordBtn = (Button) findViewById(R.id.start_record_button); 39 | mStopRecordBtn = (Button) findViewById(R.id.stop_record_button); 40 | mPlayAudioBtn = (Button) findViewById(R.id.play_audio_button); 41 | mStopAudioBtn = (Button) findViewById(R.id.stop_audio_button); 42 | mBuffer = new byte[BUFFER_SIZE]; 43 | mAudioFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath() 44 | + "/record/encode.pcm"); 45 | mExecutorService = Executors.newSingleThreadExecutor(); 46 | 47 | mAudioUtil = AudioUtil.getInstance(); 48 | initEvent(); 49 | } 50 | 51 | private void initEvent() 52 | { 53 | mStartRecordBtn.setOnClickListener(new View.OnClickListener() 54 | { 55 | @Override 56 | public void onClick(View view) 57 | { 58 | mAudioUtil.startRecord(); 59 | mAudioUtil.recordData(); 60 | } 61 | }); 62 | mStopRecordBtn.setOnClickListener(new View.OnClickListener() 63 | { 64 | @Override 65 | public void onClick(View view) 66 | { 67 | mAudioUtil.stopRecord(); 68 | mAudioUtil.convertWavFile(); 69 | } 70 | }); 71 | 72 | mPlayAudioBtn.setOnClickListener(new View.OnClickListener() 73 | { 74 | @Override 75 | public void onClick(View view) 76 | { 77 | if (mAudioFile != null) 78 | { 79 | mExecutorService.submit(new Runnable() 80 | { 81 | @Override 82 | public void run() 83 | { 84 | playAudio(mAudioFile); 85 | } 86 | }); 87 | } 88 | } 89 | }); 90 | 91 | mStopAudioBtn.setOnClickListener(new View.OnClickListener() 92 | { 93 | @Override 94 | public void onClick(View view) 95 | { 96 | } 97 | }); 98 | } 99 | 100 | private void playAudio(File audioFile) 101 | { 102 | Log.d("MainActivity" , "lu yin kaishi"); 103 | int streamType = AudioManager.STREAM_MUSIC; 104 | int simpleRate = 44100; 105 | int channelConfig = AudioFormat.CHANNEL_OUT_STEREO; 106 | int audioFormat = AudioFormat.ENCODING_PCM_16BIT; 107 | int mode = AudioTrack.MODE_STREAM; 108 | 109 | int minBufferSize = AudioTrack.getMinBufferSize(simpleRate , channelConfig , audioFormat); 110 | AudioTrack audioTrack = new AudioTrack(streamType , simpleRate , channelConfig , audioFormat , 111 | Math.max(minBufferSize , BUFFER_SIZE) , mode); 112 | audioTrack.play(); 113 | Log.d(TAG , minBufferSize + " is the min buffer size , " + BUFFER_SIZE + " is the read buffer size"); 114 | 115 | FileInputStream inputStream = null; 116 | try 117 | { 118 | inputStream = new FileInputStream(audioFile); 119 | int read; 120 | while ((read = inputStream.read(mBuffer)) > 0) 121 | { 122 | Log.d("MainActivity" , "lu yin kaishi11111"); 123 | 124 | audioTrack.write(mBuffer , 0 , read); 125 | } 126 | } 127 | catch (RuntimeException | IOException e) 128 | { 129 | e.printStackTrace(); 130 | } 131 | } 132 | 133 | @Override 134 | protected void onDestroy() 135 | { 136 | super.onDestroy(); 137 | } 138 | } 139 | -------------------------------------------------------------------------------- /app/src/main/java/com/imooc/pcmtest/VoicePlayer.java: -------------------------------------------------------------------------------- 1 | package com.imooc.pcmtest; 2 | 3 | import android.media.AudioManager; 4 | import android.media.AudioTrack; 5 | import android.os.Handler; 6 | import android.os.Looper; 7 | import android.os.Message; 8 | 9 | /** 10 | * Created by zhangtao on 17/8/27. 11 | */ 12 | 13 | public class VoicePlayer 14 | { 15 | private AudioTrack mAudioTrack; //AudioTrack对象 16 | private AudioPlayThread mAudioPlayThread = null; 17 | private AudioParam mAudioParam; //音频参数 18 | private int mPrimePlaySize = 0; //较优播放块大小 19 | 20 | //设置音频参数 21 | public void setAudioParam(AudioParam audioParam) 22 | { 23 | mAudioParam = audioParam; 24 | } 25 | 26 | private void createAudioTrack() 27 | { 28 | if (mAudioTrack == null) 29 | { 30 | // 获得构建对象的最小缓冲区大小 31 | int minBufSize = AudioTrack.getMinBufferSize(mAudioParam.mFrequency , 32 | mAudioParam.mChannel , mAudioParam.mSampleBit); 33 | mPrimePlaySize = minBufSize; 34 | mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC , mAudioParam.mFrequency , 35 | mAudioParam.mChannel , mAudioParam.mSampleBit , mPrimePlaySize , AudioTrack.MODE_STREAM); 36 | } 37 | } 38 | 39 | private void releaseAudioTrack() 40 | { 41 | if (mAudioTrack != null) 42 | { 43 | mAudioTrack.stop(); 44 | mAudioTrack.release(); 45 | mAudioTrack = null; 46 | } 47 | } 48 | 49 | //就绪播放源 50 | public void prepare() 51 | { 52 | if (mAudioParam != null) 53 | { 54 | createAudioTrack(); 55 | } 56 | } 57 | 58 | public void play() 59 | { 60 | if (mAudioPlayThread == null) 61 | { 62 | mAudioPlayThread = new AudioPlayThread(); 63 | mAudioPlayThread.start(); 64 | if (mAudioPlayThread.mPlayHandler == null) 65 | { 66 | try 67 | { 68 | Thread.sleep(1000); 69 | } 70 | catch (InterruptedException e) 71 | { 72 | e.printStackTrace(); 73 | } 74 | } 75 | } 76 | } 77 | 78 | private void stop() 79 | { 80 | if (mAudioPlayThread != null) 81 | { 82 | mAudioPlayThread = null; 83 | } 84 | } 85 | 86 | public void release() 87 | { 88 | stop(); 89 | releaseAudioTrack(); 90 | } 91 | 92 | //设置音频源 93 | public void setDataSource(byte[] data) 94 | { 95 | if (mAudioPlayThread.mPlayHandler != null) 96 | { 97 | Message message = mAudioPlayThread.mPlayHandler.obtainMessage(); 98 | message.what = 0x123; 99 | message.obj = data; 100 | mAudioPlayThread.mPlayHandler.sendMessage(message); 101 | } 102 | } 103 | 104 | class AudioPlayThread extends Thread 105 | { 106 | private Handler mPlayHandler; 107 | @Override 108 | public void run() 109 | { 110 | mAudioTrack.play(); 111 | Looper.prepare(); 112 | mPlayHandler = new Handler() 113 | { 114 | @Override 115 | public void handleMessage(Message msg) 116 | { 117 | if (msg.what == 0x123) 118 | { 119 | mAudioTrack.write((byte[]) msg.obj, 0, ((byte[]) msg.obj).length); 120 | } 121 | } 122 | }; 123 | Looper.loop(); 124 | } 125 | } 126 | } 127 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 12 | 13 | 18 | 19 |