Android中仿微信录音，录音后的raw文件转mp3文件
16lz
2021-01-25
现在很多时候需要用到录音，然后如果我们的App是ios和android两端的话，就要考虑录音的文件在两端都能使用，这个时候就需要适配，两端的录音文件都要是mp3文件，这样才能保证两边都能播放。
针对这个，封装了一个简单可用的录音控件。
使用方法：1.在xml文件中添加
2.别忘了申请录音权限
AndPermission.with(MainActivity.this) .permission(Manifest.permission.RECORD_AUDIO,Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.READ_EXTERNAL_STORAGE) .onGranted(permissions -> { showSelect(); }) .onDenied(permissions -> { Toast.makeText(MainActivity.this,"请同意录音权限",Toast.LENGTH_SHORT).show(); }) .start();private void showSelect() { SoundTextView recordAudio = findViewById(R.id.record_audio); recordAudio.setOnRecordFinishedListener(new SoundTextView.OnRecordFinishedListener() { @Override public void newMessage(String path, int duration) { int index = path.lastIndexOf("/"); String fileName = path.substring(index + 1); Log.e("录音文件", "path=: "+path ); } }); }使用方法如上非常简单：
主要的类
package ant.muxi.com.audiodemo.view;import android.app.Activity;import android.app.Dialog;import android.content.Context;import android.os.Environment;import android.os.Handler;import android.os.Message;import android.util.AttributeSet;import android.util.Log;import android.view.MotionEvent;import android.widget.TextView;import android.widget.Toast;import androidx.appcompat.widget.AppCompatTextView;import java.io.File;import ant.muxi.com.audiodemo.R;import ant.muxi.com.audiodemo.audio.ProgressTextUtils;import ant.muxi.com.audiodemo.audio.RecordManager;public class SoundTextView extends AppCompatTextView { private Context mContext; private Dialog recordIndicator; private TextView mVoiceTime; private File file; private String type = "1";//默认开始录音 type=2，录音完毕 RecordManager recordManager; File fileto; int level; private long downT; String sountime; public SoundTextView(Context context) { super(context); init(); } public SoundTextView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); this.mContext = context; init(); } public SoundTextView(Context context, AttributeSet attrs) { super(context, attrs); this.mContext = context; init(); } private void init() { recordIndicator = new Dialog(getContext(), R.style.jmui_record_voice_dialog); recordIndicator.setContentView(R.layout.jmui_dialog_record_voice); mVoiceTime = (TextView) recordIndicator.findViewById(R.id.voice_time); file = new File(Environment.getExternalStorageDirectory() + "/recoder.amr"); fileto = new File(Environment.getExternalStorageDirectory() + "/recoder.mp3"); recordManager = new RecordManager( (Activity) mContext, String.valueOf(file), String.valueOf(fileto)); recordManager.setOnAudioStatusUpdateListener(new RecordManager.OnAudioStatusUpdateListener() { @Override public void onUpdate(double db) { //得到分贝 if (null != recordIndicator) { level = (int) db; handler.sendEmptyMessage(0x111); } } }); } Handler handler = new Handler() { @Override public void handleMessage(Message msg) { super.handleMessage(msg); switch (msg.what) { case 0x111: sountime = ProgressTextUtils.getSecsProgress(System.currentTimeMillis() - downT); long time = System.currentTimeMillis() - downT; mVoiceTime.setText(ProgressTextUtils.getProgressText(time)); //判断时间 judetime(Integer.parseInt(sountime)); break; } } }; public void judetime(int time) { if (time > 14) { //结束录制 Toast.makeText(mContext, "录音不能超过十五秒", Toast.LENGTH_SHORT).show(); recordManager.stop_mp3(); new Thread() { @Override public void run() { super.run(); recordManager.saveData(); finishRecord(fileto.getPath(), sountime); } }.start(); recordIndicator.dismiss(); type = "2"; } } @Override public boolean onTouchEvent(MotionEvent event) { int action = event.getAction(); switch (action) { case MotionEvent.ACTION_DOWN: if (type.equals("1")) { //开始发送时间 downT = System.currentTimeMillis(); recordManager.start_mp3(); recordIndicator.show(); } else { Log.e("-log-", "您已经录制完毕: "); } return true; case MotionEvent.ACTION_UP: if (type.equals("1")) { try { if (Integer.parseInt(sountime) > 2) { recordManager.stop_mp3(); new Thread() { @Override public void run() { super.run(); recordManager.saveData(); finishRecord(fileto.getPath(), sountime); } }.start(); if (recordIndicator.isShowing()) { recordIndicator.dismiss(); } type = "2"; } else { recordManager.stop_mp3(); if (recordIndicator.isShowing()) { recordIndicator.dismiss(); } sountime = null; Toast.makeText(mContext, "录音时间少于3秒，请重新录制", Toast.LENGTH_SHORT).show(); } } catch (Exception e) { recordManager.stop_mp3(); if (recordIndicator.isShowing()) { recordIndicator.dismiss(); } sountime = null; Toast.makeText(mContext, "录音时间少于3秒，请重新录制", Toast.LENGTH_SHORT).show(); } } break; case MotionEvent.ACTION_CANCEL: if (recordIndicator.isShowing()) { recordIndicator.dismiss(); } break; } return super.onTouchEvent(event); } //录音完毕加载 ListView item private void finishRecord(String path, String time) { if (onRecordFinishedListener != null) { onRecordFinishedListener.newMessage(path, Integer.parseInt(time)); type = "1"; } //发送语音 // Toasts.toast(getContext(),"您已经录完了一条语音"+myRecAudioFile); } private OnRecordFinishedListener onRecordFinishedListener; public void setOnRecordFinishedListener(OnRecordFinishedListener onRecordFinishedListener) { this.onRecordFinishedListener = onRecordFinishedListener; } public interface OnRecordFinishedListener { void newMessage(String path, int duration); }}主要的录音管理类
public class RecordManager { //录制成MP3格式.............................................. /**构造时候需要的Activity，主要用于获取文件夹的路径*/ private Activity activity; /**文件代号*/ public static final int RAW = 0X00000001; public static final int MP3 = 0X00000002; /**文件路径*/ private String rawPath = null; private String mp3Path = null; /**采样频率*/ private static final int SAMPLE_RATE = 11025; /**录音需要的一些变量*/ private short[] mBuffer; private AudioRecord mRecorder; /**录音状态*/ private boolean isRecording = false; /**是否转换ok*/ private boolean convertOk = false; public RecordManager(Activity activity, String rawPath, String mp3Path) { this.activity = activity; this.rawPath = rawPath; this.mp3Path = mp3Path; } /**开始录音*/ public boolean start_mp3() { // 如果正在录音，则返回 if (isRecording) { return isRecording; } // 初始化 if (mRecorder == null) { initRecorder(); } getFilePath(); mRecorder.startRecording(); startBufferedWrite(new File(rawPath)); isRecording = true; return isRecording; } /**停止录音，并且转换文件,这很可能是个耗时操作，建议在后台中做*/ public boolean stop_mp3() { if (!isRecording) { return isRecording; } // 停止 mRecorder.stop(); isRecording = false;//TODO // 开始转换（转换代码就这两句）// FLameUtils lameUtils = new FLameUtils(1, SAMPLE_RATE, 96);// convertOk = lameUtils.raw2mp3(rawPath, mp3Path);// return isRecording ^ convertOk;// convertOk==true,return true return isRecording; } public void saveData(){ FLameUtils lameUtils = new FLameUtils(1, SAMPLE_RATE, 96); convertOk = lameUtils.raw2mp3(rawPath, mp3Path); } /**获取文件的路径*/ public String getFilePath(int fileAlias) { if (fileAlias == RAW) { return rawPath; } else if (fileAlias == MP3) { return mp3Path; } else return null; } /**清理文件*/ public void cleanFile(int cleanFlag) { File f = null; try { switch (cleanFlag) { case MP3: f = new File(mp3Path); if (f.exists()) f.delete(); break; case RAW: f = new File(rawPath); if (f.exists()) f.delete(); break; case RAW | MP3: f = new File(rawPath); if (f.exists()) f.delete(); f = new File(mp3Path); if (f.exists()) f.delete(); break; } f = null; } catch (Exception e) { e.printStackTrace(); } } /**关闭,可以先调用cleanFile来清理文件*/ public void close() { if (mRecorder != null) mRecorder.release(); activity = null; } /**初始化*/ private void initRecorder() { int bufferSize = AudioRecord.getMinBufferSize(SAMPLE_RATE, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT); mBuffer = new short[bufferSize]; mRecorder = new AudioRecord(MediaRecorder.AudioSource.MIC, SAMPLE_RATE, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferSize); } /**设置路径，第一个为raw文件，第二个为mp3文件*/ private void getFilePath() { try { String folder = "audio_recorder_2_mp3"; String fileName = String.valueOf(System.currentTimeMillis()); if (rawPath == null) { File raw = new File(activity.getDir(folder, activity.MODE_PRIVATE), fileName + ".raw"); raw.createNewFile(); rawPath = raw.getAbsolutePath(); raw = null; } if (mp3Path == null) { File mp3 = new File(activity.getDir(folder, activity.MODE_PRIVATE), fileName + ".mp3"); mp3.createNewFile(); mp3Path = mp3.getAbsolutePath(); mp3 = null; } Log.d("rawPath", rawPath); Log.d("mp3Path", mp3Path); } catch (Exception e) { e.printStackTrace(); } } /**执行cmd命令，并等待结果*/ private boolean runCommand(String command) { boolean ret = false; Process process = null; try { process = Runtime.getRuntime().exec(command); process.waitFor(); ret = true; } catch (Exception e) { e.printStackTrace(); } finally { try { process.destroy(); } catch (Exception e) { e.printStackTrace(); } } return ret; } /**写入到raw文件*/ private void startBufferedWrite(final File file) { Object mLock = new Object(); new Thread(new Runnable() { @Override public void run() { DataOutputStream output = null; try { output = new DataOutputStream(new BufferedOutputStream( new FileOutputStream(file))); while (isRecording) {//开始录制 int readSize = mRecorder.read(mBuffer, 0, mBuffer.length);//是实际读取的数据长度 for (int i = 0; i < readSize; i++) { output.writeShort(mBuffer[i]); } long v = 0; // 将 buffer 内容取出，进行平方和运算 for (int i = 0; i < mBuffer.length; i++) { v += mBuffer[i] * mBuffer[i]; } // 平方和除以数据总长度，得到音量大小。 double mean = v / (double) readSize; double volume = 10 * Math.log10(mean); synchronized (mLock) { try { if(null != audioStatusUpdateListener) { audioStatusUpdateListener.onUpdate(volume); } mLock.wait(100); } catch (InterruptedException e) { e.printStackTrace(); } } } } catch (IOException e) { e.printStackTrace(); } finally { if (output != null) { try { output.flush(); } catch (IOException e) { e.printStackTrace(); } finally { try { output.close(); } catch (IOException e) { e.printStackTrace(); } } } } } }).start(); } public RecordManager.OnAudioStatusUpdateListener audioStatusUpdateListener; public void setOnAudioStatusUpdateListener(RecordManager.OnAudioStatusUpdateListener audioStatusUpdateListener) { this.audioStatusUpdateListener = audioStatusUpdateListener; } public interface OnAudioStatusUpdateListener { public void onUpdate(double db); }}完整代码：https://download.csdn.net/download/shihuiyun/11980411
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