我正在使用一个教程录制语音并录制我正在使用课程AudioRecord，因为我想显示具有一定噪音级别的进度条。我提供的文件将存储音频数据。文件大小随着音频数据的增加而增加。但是当我手动播放录制的文件但它没有播放任何内容时。谁能告诉我我错过了什么？
private class RecordAudio extends AsyncTask<Void, Void, Void> {
boolean alertshown = false;
boolean smsdone = false;
boolean calldone = false;
int blocksize = 256;
@Override
protected Void doInBackground(Void... params) {
//isRecording = true;
try {
BufferedOutputStream dos = new BufferedOutputStream(new FileOutputStream(babyNoiseFile));
DataOutputStream dosTemp = new DataOutputStream(new BufferedOutputStream(new FileOutputStream(babyNoiseTempFile)));
int bufferSize = AudioRecord.getMinBufferSize(frequency,channelConfiguration, audioEncoding);
AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, frequency,channelConfiguration, audioEncoding, bufferSize);
short[] buffer = new short[bufferSize];
audioRecord.startRecording();
while (isMonitoringStarted) {
int bufferReadResult = audioRecord.read(buffer, 0,bufferSize);
//for (int i = 0; i < buffer.length; i++) {
for (int i = 0; i < bufferReadResult; i++) {
prgrssbarNoiseStatus.setProgress(buffer[i]);
lastlevel = buffer[i];
//txtvwProgress.setText(""+lastlevel);
//System.out.println(lastlevel);
if (lastlevel > lowSensitivityLevel && lastlevel < mediumSensitivityLevel){
dos.write(buffer[i]);
publishProgress();
break;
}
if (lastlevel > mediumSensitivityLevel && lastlevel < highSensitivityLevel) {
dos.write(buffer[i]);
publishProgress();
break;
}
if (lastlevel > highSensitivityLevel) {
dos.write(buffer[i]);
publishProgress();
break;
}
}
for (int i = 0; i < bufferReadResult; i++) {
dosTemp.writeShort(buffer[i]);
}
//publishProgress(new Integer(r));
}
audioRecord.stop();
if (isMonitoringStarted) {
}
dos.close();
dosTemp.close();
} catch (Throwable t) {
t.getStackTrace();
t.printStackTrace();
Log.e("AudioRecord", "Recording Failed");
}
return null;
}
protected void onProgressUpdate(Void... progress) {
if (lastlevel > lowSensitivityLevel && lastlevel < mediumSensitivityLevel) {
//islowFired = false;
System.out.println("low");
if (!islowFired) {
islowFired = true;
lowTimer = new LowActionTimer(2000, 1000);
lowTimer.start();
}
//Toast.makeText(HomeActivity.this, "Call will fire!!", Toast.LENGTH_SHORT).show();
}
if (lastlevel > mediumSensitivityLevel && lastlevel < highSensitivityLevel) {
//if (islowFired) {
lowTimer.cancel();
mediumTimer = new MediumActionTimer(2000, 1000);
mediumTimer.start();
//}
//Toast.makeText(HomeActivity.this, "email will fire!!", Toast.LENGTH_SHORT).show();
System.out.println("medium");
}
if (lastlevel > highSensitivityLevel) {
//Toast.makeText(HomeActivity.this, "notification will fire!!", Toast.LENGTH_SHORT).show();
System.out.println("call will fire!!");
}
}
protected void onPostExecute(Void result) {
}
}
谢谢你。