@Override
protected Void doInBackground(Void... params) {
int bufferSize = AudioRecord.getMinBufferSize(frequency, channelConfiguration, audioEncoding);
AudioRecord audioRecord =
new AudioRecord(
controller.getAudioSource(),
frequency,
channelConfiguration,
audioEncoding,
bufferSize);
try {
short[] buffer = new short[blockSize];
audioRecord.startRecording();
while (controller.isStarted()) {
int bufferReadSize = audioRecord.read(buffer, 0, blockSize);
DataBlock dataBlock = new DataBlock(buffer, blockSize, bufferReadSize);
blockingQueue.put(dataBlock);
}
} catch (Throwable t) {
// Log.e("AudioRecord", "Recording Failed");
}
audioRecord.stop();
return null;
}
/**
* Gets an AudioRecord object using the current recording settings
*
* @param context Context which we are getting recorder for
*/
public static AudioRecord getRecorder(Context context) throws IllegalArgumentException {
AudioRecord recorder = null;
int sampleRate = PreferenceHelper.getSampleRate(context);
int bufferSize = PreferenceHelper.getBufferSize(context);
int bufferSizeAdjuster = PreferenceHelper.getBufferSizeAdjuster(context);
int audioSource = AudioSource.MIC;
Log.i(
TAG_AUDIOHELPER,
String.format(
"AudioRecord initialized with saved configuration! sample rate: %d, buffer: %d, buffer adjuster: %d",
sampleRate, bufferSize, bufferSizeAdjuster));
recorder =
new AudioRecord(
audioSource,
sampleRate,
Constants.DEFAULT_CHANNEL_CONFIG,
Constants.DEFAULT_PCM_FORMAT,
bufferSize * bufferSizeAdjuster);
if (recorder.getState() != AudioRecord.STATE_INITIALIZED) {
throw new IllegalArgumentException(
String.format(
"unable to initialize AudioRecord instance, sample rate: %d, channels: %d, buffer: %d",
sampleRate, Constants.DEFAULT_CHANNEL_CONFIG, bufferSize));
}
return recorder;
}
private boolean initRecord() {
mRecordBufSize =
AudioRecord.getMinBufferSize(
SAMPLE_RATE, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
if (mRecordBufSize != AudioRecord.ERROR_BAD_VALUE) {
if (mRecordBufSize < SAMPLE_RATE) {
mRecordBufSize = SAMPLE_RATE;
}
mRecorder =
new AudioRecord(
MediaRecorder.AudioSource.MIC,
SAMPLE_RATE,
AudioFormat.CHANNEL_IN_MONO,
AudioFormat.ENCODING_PCM_16BIT,
mRecordBufSize);
if (mRecorder.getState() == AudioRecord.STATE_INITIALIZED) {
mRecorder.startRecording();
} else {
Log.w(TAG, "Could not start recording.");
}
return true;
} else {
mRecordBufSize = 0;
}
return false;
}
public void run() {
android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_AUDIO);
byte[] buffer = new byte[BUFFER_SIZE];
DatagramPacket packet;
try {
int minBuf = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat);
recorder =
new AudioRecord(
MediaRecorder.AudioSource.MIC, sampleRate, channelConfig, audioFormat, minBuf);
recorder.startRecording();
} catch (Exception ex) {
// TODO: handle this exception
}
while (recordAudio) {
try {
recorder.read(buffer, 0, buffer.length);
packet = new DatagramPacket(buffer, buffer.length, InetAddress.getByName(_server), _port);
socket.send(packet);
} catch (Exception ex) {
// TODO: handle this exception
}
}
buffer = null;
}
public void run() {
// start the encoder
encoder.startEncoding();
try {
audioRecord.startRecording();
} catch (IllegalStateException e) {
this.isRecording = false;
return;
}
this.isRecording = true;
while (isRecording) {
bufferRead = audioRecord.read(samples, 0, bufferSize);
if (bufferRead > 0) {
// add the data to the encoder
encoder.addData(samples, bufferRead);
}
try {
Thread.sleep(20);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
audioRecord.stop();
encoder.stopEncoding();
}
private boolean startRecording() {
boolean success = false;
recBufSize =
AudioRecord.getMinBufferSize(
SAMPLE_RATE, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
if (recBufSize < SAMPLE_RATE) {
recBufSize = SAMPLE_RATE;
}
if (recBufSize != AudioRecord.ERROR_BAD_VALUE) {
recorder =
new AudioRecord(
MediaRecorder.AudioSource.MIC,
SAMPLE_RATE,
AudioFormat.CHANNEL_IN_MONO,
AudioFormat.ENCODING_PCM_16BIT,
recBufSize);
if (recorder.getState() == AudioRecord.STATE_INITIALIZED) {
recorder.startRecording();
success = true;
} else {
try {
recorder.release();
recorder = null;
} catch (Exception e) {
e.printStackTrace();
}
}
}
return success;
}
private void stopMicRecording(AudioRecord record) {
if (record != null) {
record.stop();
record.release();
appendLogTextView(mHandler, "stop recording ok.\n");
}
}
public void run() {
super.run();
ar.startRecording();
// 用于读取的 buffer
byte[] buffer = new byte[bs];
isRun = true;
while (isRun) {
int r = ar.read(buffer, 0, bs);
int v = 0;
// 将 buffer 内容取出，进行平方和运算
for (int i = 0; i < buffer.length; i++) {
// 这里没有做运算的优化，为了更加清晰的展示代码
v += buffer[i] * buffer[i];
// v += (buffer[i] << 1);
}
// 平方和除以数据总长度，得到音量大小。可以获取白噪声值，然后对实际采样进行标准化。
// 如果想利用这个数值进行操作，建议用 sendMessage 将其抛出，在 Handler 里进行处理。
// Log.d("spl", String.valueOf(v / (float) r));
value = v / (float) r;
// value = (int) (Math.abs((int)(v /(float)r)/10000) >> 1);
dB = 10 * Math.log10(v / (double) r);
// MainActivity.SetText(value,dB);
Log.d("Data:", String.valueOf(value) + " " + String.valueOf(dB));
handler.post(
new Runnable() {
@Override
public void run() {
SetText(value, dB);
}
});
}
ar.stop();
}
public void close() {
recordAudio = false;
recorder.stop();
recorder.release();
socket.close();
}
public void run() {
synchronized (this) {
if (!mPlay || mParams == null) {
return;
}
mRunning = true;
}
int trackBufSize =
android.media.AudioTrack.getMinBufferSize(mParams.rate, mParams.outch, mParams.encoding);
AudioTrack track =
new AudioTrack(
AudioManager.STREAM_VOICE_CALL,
mParams.rate,
mParams.outch,
mParams.encoding,
trackBufSize,
AudioTrack.MODE_STREAM);
track.play();
appendLogTextView(mHandler, "play playback ok.\n");
if (mParams.source == AUDIO_SOURCE_WAVE_FILE) {
// Log.d("sakalog", "play " + mParams.wavefile);
// WaveDataInputStream wavein = new WaveDataInputStream(mParams.wavefile);
Log.d("sakalog", "play " + mResources.getResourceName(mParams.waveid));
WaveDataInputStream wavein = new WaveDataInputStream(mParams.waveid);
byte[] wave = new byte[512];
int size = wavein.read(wave, wave.length);
track.write(wave, 0, size);
while (mPlay && ((size = wavein.read(wave, wave.length)) > -1)) {
track.write(wave, 0, size);
}
wavein.close();
} else {
Log.d("sakalog", "play ");
AudioRecord record = startMicRecording(mParams.rate, mParams.inch, mParams.encoding);
byte[] buf = new byte[trackBufSize];
while (mPlay) {
int size = record.read(buf, 0, buf.length);
track.write(buf, 0, size);
}
stopMicRecording(record);
}
track.stop();
track.release();
appendLogTextView(mHandler, "stop playback ok.\n");
synchronized (this) {
mPlay = false;
mRunning = false;
}
}
protected void onDestroy() {
mFlag = false;
mAudioRecod.stop();
mAudioRecod.release();
mAudioRecod = null;
mAudioTrack.stop();
mAudioTrack.release();
mAudioTrack = null;
unregisterReceiver(mReceiver);
super.onDestroy();
}
/** Stops the stream. */
public synchronized void stop() {
if (mStreaming) {
Log.d(TAG, "Interrupting threads...");
mThread.interrupt();
mAudioRecord.stop();
mAudioRecord.release();
mAudioRecord = null;
super.stop();
}
}
public void run() {
audioRecord.startRecording();
AudioCodec.iLbcinit(20);
this.isRecording = true;
StartSendAudio();
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release(); // 释放资源
audioRecord = null;
}
isRecording = false;
}
private void startAudioRecording(File outputFile) throws IOException {
if (outputFile != null) dataOutput = new AudioWavOutputStream(outputFile, 1, samplingRate);
final int CHANNEL_CONFIG = AudioFormat.CHANNEL_IN_MONO;
final int FORMAT = AudioFormat.ENCODING_PCM_16BIT;
int bufferSize = AudioRecord.getMinBufferSize(samplingRate, CHANNEL_CONFIG, FORMAT) * 4;
audioRecord =
new AudioRecord(
MediaRecorder.AudioSource.MIC, samplingRate, CHANNEL_CONFIG, FORMAT, bufferSize);
audioRecord.startRecording();
}
private void stopAudioRecording() {
audioRecord.stop();
if (dataOutput != null) {
try {
dataOutput.close();
} catch (IOException e) {
e.printStackTrace();
}
dataOutput = null;
}
audioRecord.release();
}
@Override
public void run() {
android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_URGENT_AUDIO);
Modulation.initDecoder(); // init demodulator
Modulation.initProcess();
recdata = new short[recBufSize / 2];
while (!Thread.interrupted() && !mStopRecording) {
if (recorder == null) {
break;
}
nread = recorder.read(recdata, 0, recBufSize / 2);
if (nread > 0) {
retval = Modulation.process(recdata, nread);
if (retval == 2) {
String str = "";
byte[] result = Modulation.getResult();
try {
str = new String(result, "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
if (mStopRecording) {
continue;
}
Message msg = mHandler.obtainMessage();
msg.what = mEventId;
msg.obj = str;
mHandler.sendMessage(msg);
try {
// when receive a message, sleep a little while;
// so the main thread has a chance to stop recording immediately
Thread.sleep(200);
} catch (InterruptedException e) {
continue;
}
}
}
}
try {
recorder.stop();
recorder.release();
} catch (Exception e) {
e.printStackTrace();
}
recorder = null;
Modulation.releaseDecoder();
}
@Override
protected void onStop() {
super.onStop();
Log.v(ac_tag, "onStop");
if (audioRecord != null) {
if (audioRecord.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
audioRecord.stop();
}
audioRecord.release();
audioRecord = null;
}
}
public void stopRecording() {
if (null != recorder) {
isRecording = false;
recorder.stop();
recorder.release();
recorder = null;
recordingThread = null;
copyWaveFile(getTempFilename(), getFilename());
deleteTempFile();
}
}
@Override
protected void onResume() {
Log.v(ac_tag, "onResume");
super.onResume();
Calendar c = Calendar.getInstance();
int weekIndex = c.get(Calendar.DAY_OF_WEEK) - 1;
this.timeView.setText(
""
+ decimalFormat.format(c.get(Calendar.HOUR_OF_DAY))
+ ":"
+ decimalFormat.format(c.get(Calendar.MINUTE)));
this.dateView.setText(
""
+ decimalFormat.format(c.get(Calendar.MONTH) + 1)
+ "月"
+ decimalFormat.format(c.get(Calendar.DAY_OF_MONTH))
+ "日 "
+ weekDaysName[weekIndex]);
this.mPassView.setVisibility(View.GONE);
this.pbCircle.setVisibility(View.INVISIBLE);
this.progressView.setAlpha(1f);
this.progressView.setVisibility(View.VISIBLE);
this.progressView.setText("正在初始化...");
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
boolean isScreenOn = pm.isScreenOn();
if (isScreenOn) {
if (audioRecord.getState() != AudioRecord.STATE_INITIALIZED) {
isRecording = false;
} else {
if (isRecording == false) {
audioRecord.startRecording();
isRecording = true;
}
STask = new SecondsRoundTask();
ATask = new AuthenTask();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
STask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
ATask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
} else {
STask.execute();
ATask.execute();
}
}
}
}
/** Starts the recording, and sets the state to RECORDING. Call after prepare(). */
public void start() {
if (state == State.READY) {
if (rUncompressed) {
payloadSize = 0;
audioRecorder.startRecording();
audioRecorder.read(buffer, 0, buffer.length);
} else {
mediaRecorder.start();
}
state = State.RECORDING;
} else {
Log.e(ExtAudioRecorder.class.getName(), "start() called on illegal state");
state = State.ERROR;
}
}
@Override
protected void onPause() {
super.onPause();
thread.interrupt();
thread = null;
try {
if (audio != null) {
audio.stop();
audio.release();
audio = null;
}
} catch (Exception e) {
e.printStackTrace();
}
}
public AndroidAudioRecorder(int samplingRate, boolean isMono) {
int channelConfig = isMono ? AudioFormat.CHANNEL_IN_MONO : AudioFormat.CHANNEL_IN_STEREO;
int minBufferSize =
AudioRecord.getMinBufferSize(samplingRate, channelConfig, AudioFormat.ENCODING_PCM_16BIT);
recorder =
new AudioRecord(
MediaRecorder.AudioSource.MIC,
samplingRate,
channelConfig,
AudioFormat.ENCODING_PCM_16BIT,
minBufferSize);
if (recorder.getState() != AudioRecord.STATE_INITIALIZED)
throw new GdxRuntimeException(
"Unable to initialize AudioRecorder.\nDo you have the RECORD_AUDIO permission?");
recorder.startRecording();
}
protected StampedAudio readMic() {
StampedAudio stampedAudio = null;
if (_mic != null) {
int timestamp = getOutboundTimestamp();
// read is blocking.
int bufferRead = _mic.read(_micFramebuff, 0, _micFramebuff.length);
Log.verb(
this.getClass().getSimpleName()
+ ".readMic(): length="
+ _micFramebuff.length
+ ", bufferRead="
+ bufferRead);
short[] sframe = _micFramebuff;
// short[] seframe = effectIn(sframe);
byte[] tbuff = _encoder.encode_frame(sframe);
if (tbuff != null) {
stampedAudio = _audio.getCleanStampedAudio();
stampedAudio.setStampAndBytes(tbuff, 0, tbuff.length, timestamp);
_audio.saveReadStampedAudio(stampedAudio);
_countFrames++;
}
}
return stampedAudio;
}
protected void destroy() {
Log.debug(this.getClass().getSimpleName() + ".destroy(): ");
if (_mic != null) {
_mic.release();
Log.debug("\tmic released");
}
}
private void init() {
mBuffer =
AudioRecord.getMinBufferSize(
44100, AudioFormat.CHANNEL_OUT_DEFAULT, AudioFormat.ENCODING_PCM_16BIT);
mAudioRecod =
new AudioRecord(
MediaRecorder.AudioSource.MIC,
44100,
AudioFormat.CHANNEL_OUT_DEFAULT,
AudioFormat.ENCODING_PCM_16BIT,
mBuffer);
mAudioTrack =
new AudioTrack(
AudioManager.STREAM_VOICE_CALL,
44100,
AudioFormat.CHANNEL_OUT_DEFAULT,
AudioFormat.ENCODING_PCM_16BIT,
mBuffer,
AudioTrack.MODE_STREAM);
mInBytes = new byte[mBuffer];
mOutBytes = new byte[mBuffer];
mLinkedList = new LinkedList<byte[]>();
}
public void startRecording() {
recorder =
new AudioRecord(
MediaRecorder.AudioSource.MIC,
RECORDER_SAMPLERATE,
RECORDER_CHANNELS,
RECORDER_AUDIO_ENCODING,
bufferSize);
recorder.startRecording();
isRecording = true;
recordingThread =
new Thread(
new Runnable() {
@Override
public void run() {
writeAudioDataToFile();
}
},
"AudioRecorder Thread");
recordingThread.start();
}
// STEP 4: setup recording
public void listen() {
recorder.startRecording();
tarsosFormat =
new be.hogent.tarsos.dsp.AudioFormat(
(float) SAMPLE_RATE, // sample rate
16, // bit depth
1, // channels
true, // signed samples?
false // big endian?
);
Thread listeningThread =
new Thread(
new Runnable() {
@Override
public void run() {
while (mIsRecording) {
int bufferReadResult = recorder.read(buffer, 0, buffer.length);
AudioEvent audioEvent = new AudioEvent(tarsosFormat, bufferReadResult);
audioEvent.setFloatBufferWithByteBuffer(buffer);
mPitchProcessor.process(audioEvent);
}
recorder.stop();
}
});
listeningThread.start();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_blackout);
// Hide the status bar.
View decorView = getWindow().getDecorView();
int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN;
decorView.setSystemUiVisibility(uiOptions);
// Sets screen brightness to lowest possible setting
WindowManager.LayoutParams params = getWindow().getAttributes();
params.screenBrightness = 0;
getWindow().setAttributes(params);
// Ensures the device won't lock while the app is running
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
// begins listening for audio
// this will detect the sound from the user
try {
bufferSize =
AudioRecord.getMinBufferSize(
sampleRate, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
} catch (Exception e) {
android.util.Log.e("TrackingFlow", "Exception", e);
}
}
private void writeAudioDataToFile() {
byte data[] = new byte[bufferSize];
String filename = getTempFilename();
FileOutputStream os = null;
try {
os = new FileOutputStream(filename);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
Log.d("SAN", e.getMessage());
}
int read = 0;
if (null != os) {
while (isRecording) {
read = recorder.read(data, 0, bufferSize);
if (AudioRecord.ERROR_INVALID_OPERATION != read) {
try {
os.write(data);
} catch (IOException e) {
Log.d("SAN", e.getMessage());
}
}
}
try {
os.close();
} catch (IOException e) {
Log.d("SAN", e.getMessage());
}
}
}
@Override
public void read(short[] samples, int offset, int numSamples) {
int read = 0;
while (read != numSamples) {
read += recorder.read(samples, offset + read, numSamples - read);
}
}