Java Code Examples for android.media.AudioRecord#startRecording()
The following examples show how to use
android.media.AudioRecord#startRecording() .
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Example 1
| Source File: RecordAudioTester.java From PermissionAgent with Apache License 2.0 | 6 votes |
|
@Override
public boolean test() throws Throwable {
AudioRecord audioRecord = findAudioRecord();
try {
if (audioRecord != null) {
audioRecord.startRecording();
} else {
return !existMicrophone(mContext);
}
} catch (Throwable e) {
return !existMicrophone(mContext);
} finally {
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
}
}
return true;
}
Example 2
| Source File: AndroidRecorder.java From LingoRecorder with Apache License 2.0 | 6 votes |
|
@Override
public void startRecording() throws Exception {
int buffSize = getBufferSize();
recorder = new AudioRecord(MediaRecorder.AudioSource.MIC, recorderProperty.getSampleRate(),
channels, audioFormat, buffSize);
if (recorder.getState() != AudioRecord.STATE_INITIALIZED) {
throw new RecorderInitException();
}
payloadSize = 0;
recorder.startRecording();
if (recorder.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
throw new RecorderStartException();
}
}
Example 3
| Source File: MainActivity.java From snips-platform-android-demo with Apache License 2.0 | 6 votes |
|
private void runStreaming() {
Log.d(TAG, "starting audio streaming");
final int minBufferSizeInBytes = AudioRecord.getMinBufferSize(FREQUENCY, CHANNEL, ENCODING);
Log.d(TAG, "minBufferSizeInBytes: " + minBufferSizeInBytes);
recorder = new AudioRecord(MIC, FREQUENCY, CHANNEL, ENCODING, minBufferSizeInBytes);
recorder.startRecording();
while (continueStreaming) {
short[] buffer = new short[minBufferSizeInBytes / 2];
recorder.read(buffer, 0, buffer.length);
if (client != null) {
client.sendAudioBuffer(buffer);
}
}
recorder.stop();
Log.d(TAG, "audio streaming stopped");
}
Example 4
| Source File: VoiceCaptureActor.java From actor-platform with GNU Affero General Public License v3.0 | 6 votes |
|
protected void onStartMessage(String fileName) {
if (state == STATE_STARTED) {
return;
}
int minBufferSize = AudioRecord.getMinBufferSize(16000, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
bufferSize = 16 * minBufferSize;
audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, 16000, AudioFormat.CHANNEL_IN_MONO,
AudioFormat.ENCODING_PCM_16BIT, bufferSize);
audioRecord.startRecording();
opusActor = system().actorOf(Props.create(new ActorCreator() {
@Override
public OpusEncoderActor create() {
return new OpusEncoderActor();
}
}), "actor/opus_encoder");
opusActor.send(new OpusEncoderActor.Start(fileName));
state = STATE_STARTED;
playStartTime = SystemClock.uptimeMillis();
vibrate(context);
self().send(new Iterate());
}
Example 5
| Source File: AACEncodeConsumer.java From AndroidUSBCamera with Apache License 2.0 | 6 votes |
|
private void initAudioRecord(){
if(DEBUG)
Log.d(TAG,"AACEncodeConsumer-->开始采集音频");
// 设置进程优先级
Process.setThreadPriority(Process.THREAD_PRIORITY_AUDIO);
int bufferSize = AudioRecord.getMinBufferSize(SAMPLE_RATE, AudioFormat.CHANNEL_IN_MONO,
AudioFormat.ENCODING_PCM_16BIT);
for (final int src: AUDIO_SOURCES) {
try {
mAudioRecord = new AudioRecord(src,
SAMPLE_RATE, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferSize);
if (mAudioRecord != null) {
if (mAudioRecord.getState() != AudioRecord.STATE_INITIALIZED) {
mAudioRecord.release();
mAudioRecord = null;
}
}
} catch (final Exception e) {
mAudioRecord = null;
}
if (mAudioRecord != null) {
break;
}
}
mAudioRecord.startRecording();
}
Example 6
| Source File: MicrophoneSource.java From media-for-mobile with Apache License 2.0 | 5 votes |
|
@Override
public void start() {
recorder = new AudioRecord(MediaRecorder.AudioSource.MIC, this.sampleRate, androidChannels, audioEncoding, minBufferSize * 4);
int state = recorder.getState();
if (state != AudioRecord.STATE_INITIALIZED) {
throw new IllegalStateException("Failed to start AudioRecord! Used by another application?");
}
recorder.startRecording();
super.start();
}
Example 7
| Source File: ExtAudioCapture.java From PLDroidRTCStreaming with Apache License 2.0 | 5 votes |
|
public boolean startCapture(int audioSource, int sampleRateInHz, int channelConfig, int audioFormat) {
if (mIsCaptureStarted) {
Log.e(TAG, "Capture already started !");
return false;
}
int minBufferSize = AudioRecord.getMinBufferSize(sampleRateInHz, channelConfig, audioFormat);
if (minBufferSize == AudioRecord.ERROR_BAD_VALUE) {
Log.e(TAG, "Invalid parameter !");
return false;
}
mAudioRecord = new AudioRecord(audioSource, sampleRateInHz, channelConfig, audioFormat, minBufferSize * 4);
if (mAudioRecord.getState() == AudioRecord.STATE_UNINITIALIZED) {
Log.e(TAG, "AudioRecord initialize fail !");
return false;
}
mAudioRecord.startRecording();
mIsLoopExit = false;
mCaptureThread = new Thread(new AudioCaptureRunnable());
mCaptureThread.start();
mIsCaptureStarted = true;
Log.d(TAG, "Start audio capture success !");
return true;
}
Example 8
| Source File: PullableSource.java From OmRecorder with Apache License 2.0 | 5 votes |
|
@Override
public AudioRecord preparedToBePulled() {
final AudioRecord audioRecord = audioRecord();
audioRecord.startRecording();
isEnableToBePulled(true);
return audioRecord;
}
Example 9
| Source File: CameraRecorder.java From AAVT with Apache License 2.0 | 5 votes |
|
public void startRecord() throws IOException {
synchronized (REC_LOCK){
isRecordStarted=true;
MediaFormat audioFormat=mConfig.getAudioFormat();
mAudioEncoder=MediaCodec.createEncoderByType(audioFormat.getString(MediaFormat.KEY_MIME));
mAudioEncoder.configure(audioFormat,null,null,MediaCodec.CONFIGURE_FLAG_ENCODE);
MediaFormat videoFormat=mConfig.getVideoFormat();
mVideoEncoder=MediaCodec.createEncoderByType(videoFormat.getString(MediaFormat.KEY_MIME));
//此处不能用mOutputSurface，会configure失败
mVideoEncoder.configure(videoFormat,null,null,MediaCodec.CONFIGURE_FLAG_ENCODE);
mEncodeSurface=mVideoEncoder.createInputSurface();
mAudioEncoder.start();
mVideoEncoder.start();
mMuxer=new MediaMuxer(mOutputPath,MediaMuxer.OutputFormat.MUXER_OUTPUT_MPEG_4);
mRecordBufferSize = AudioRecord.getMinBufferSize(mRecordSampleRate,
mRecordChannelConfig, mRecordAudioFormat)*2;
// buffer=new byte[bufferSize];
mAudioRecord=new AudioRecord(MediaRecorder.AudioSource.MIC,mRecordSampleRate,mRecordChannelConfig,
mRecordAudioFormat,mRecordBufferSize);
mAudioThread=new Thread(new Runnable() {
@Override
public void run() {
mAudioRecord.startRecording();
while (!audioEncodeStep(isTryStopAudio)){};
mAudioRecord.stop();
}
});
mAudioThread.start();
isRecordAudioStarted=true;
}
}
Example 10
| Source File: SoundFile.java From MusicPlayer with GNU General Public License v3.0 | 5 votes |
|
private void RecordAudio() {
if (mProgressListener == null) {
// A progress listener is mandatory here, as it will let us know when to stop recording.
return;
}
mInputFile = null;
mFileType = "raw";
mFileSize = 0;
mSampleRate = 44100;
mChannels = 1; // record mono audio.
short[] buffer = new short[1024]; // buffer contains 1 mono frame of 1024 16 bits samples
int minBufferSize = AudioRecord.getMinBufferSize(
mSampleRate, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
// make sure minBufferSize can contain at least 1 second of audio (16 bits sample).
if (minBufferSize < mSampleRate * 2) {
minBufferSize = mSampleRate * 2;
}
AudioRecord audioRecord = new AudioRecord(
MediaRecorder.AudioSource.DEFAULT,
mSampleRate,
AudioFormat.CHANNEL_IN_MONO,
AudioFormat.ENCODING_PCM_16BIT,
minBufferSize
);
// Allocate memory for 20 seconds first. Reallocate later if more is needed.
mDecodedBytes = ByteBuffer.allocate(20 * mSampleRate * 2);
mDecodedBytes.order(ByteOrder.LITTLE_ENDIAN);
mDecodedSamples = mDecodedBytes.asShortBuffer();
audioRecord.startRecording();
while (true) {
// check if mDecodedSamples can contain 1024 additional samples.
if (mDecodedSamples.remaining() < 1024) {
// Try to allocate memory for 10 additional seconds.
int newCapacity = mDecodedBytes.capacity() + 10 * mSampleRate * 2;
ByteBuffer newDecodedBytes = null;
try {
newDecodedBytes = ByteBuffer.allocate(newCapacity);
} catch (OutOfMemoryError oome) {
break;
}
int position = mDecodedSamples.position();
mDecodedBytes.rewind();
newDecodedBytes.put(mDecodedBytes);
mDecodedBytes = newDecodedBytes;
mDecodedBytes.order(ByteOrder.LITTLE_ENDIAN);
mDecodedBytes.rewind();
mDecodedSamples = mDecodedBytes.asShortBuffer();
mDecodedSamples.position(position);
}
// TODO(nfaralli): maybe use the read method that takes a direct ByteBuffer argument.
audioRecord.read(buffer, 0, buffer.length);
mDecodedSamples.put(buffer);
// Let the progress listener know how many seconds have been recorded.
// The returned value tells us if we should keep recording or stop.
if (!mProgressListener.reportProgress(
(float)(mDecodedSamples.position()) / mSampleRate)) {
break;
}
}
audioRecord.stop();
audioRecord.release();
mNumSamples = mDecodedSamples.position();
mDecodedSamples.rewind();
mDecodedBytes.rewind();
mAvgBitRate = mSampleRate * 16 / 1000;
// Temporary hack to make it work with the old version.
mNumFrames = mNumSamples / getSamplesPerFrame();
if (mNumSamples % getSamplesPerFrame() != 0){
mNumFrames++;
}
mFrameGains = new int[mNumFrames];
mFrameLens = null; // not needed for recorded audio
mFrameOffsets = null; // not needed for recorded audio
int i, j;
int gain, value;
for (i=0; i<mNumFrames; i++){
gain = -1;
for(j=0; j<getSamplesPerFrame(); j++) {
if (mDecodedSamples.remaining() > 0) {
value = java.lang.Math.abs(mDecodedSamples.get());
} else {
value = 0;
}
if (gain < value) {
gain = value;
}
}
mFrameGains[i] = (int)Math.sqrt(gain); // here gain = sqrt(max value of 1st channel)...
}
mDecodedSamples.rewind();
// DumpSamples(); // Uncomment this line to dump the samples in a TSV file.
}
Example 11
| Source File: ExtAudioCapture.java From PLDroidMediaStreaming with Apache License 2.0 | 5 votes |
|
public boolean startCapture(int audioSource, int sampleRateInHz, int channelConfig, int audioFormat) {
if (mIsCaptureStarted) {
Log.e(TAG, "Capture already started !");
return false;
}
int minBufferSize = AudioRecord.getMinBufferSize(sampleRateInHz, channelConfig, audioFormat);
if (minBufferSize == AudioRecord.ERROR_BAD_VALUE) {
Log.e(TAG, "Invalid parameter !");
return false;
}
mAudioRecord = new AudioRecord(audioSource, sampleRateInHz, channelConfig, audioFormat, minBufferSize * 4);
if (mAudioRecord.getState() == AudioRecord.STATE_UNINITIALIZED) {
Log.e(TAG, "AudioRecord initialize fail !");
return false;
}
mAudioRecord.startRecording();
mIsLoopExit = false;
mCaptureThread = new Thread(new AudioCaptureRunnable());
mCaptureThread.start();
mIsCaptureStarted = true;
Log.d(TAG, "Start audio capture success !");
return true;
}
Example 12
| Source File: MicOpusRecorder.java From DeviceConnect-Android with MIT License | 4 votes |
|
/**
* 音声をレコードして、MediaCodec に渡します.
*/
private void recordAudio() throws NativeInterfaceException {
int samplingRate = mSamplingRate.getValue();
int channels = mChannels == 1 ? AudioFormat.CHANNEL_IN_MONO : AudioFormat.CHANNEL_IN_STEREO;
int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
int bufferSize = AudioRecord.getMinBufferSize(samplingRate, channels, audioFormat) * 4;
int oneFrameDataCount = mSamplingRate.getValue() / mFrameSize.getFps();
mAudioRecord = new AudioRecord(MediaRecorder.AudioSource.DEFAULT,
samplingRate,
channels,
audioFormat,
bufferSize);
if (mAudioRecord.getState() != AudioRecord.STATE_INITIALIZED) {
if (mAudioRecordCallback != null) {
mAudioRecordCallback.onEncoderError();
}
return;
}
if (mUseAEC && AcousticEchoCanceler.isAvailable()) {
// ノイズキャンセラー
mEchoCanceler = AcousticEchoCanceler.create(mAudioRecord.getAudioSessionId());
if (mEchoCanceler != null) {
int ret = mEchoCanceler.setEnabled(true);
if (ret != AudioEffect.SUCCESS) {
if (DEBUG) {
Log.w(TAG, "AcousticEchoCanceler is not supported.");
}
}
}
}
OpusEncoder opusEncoder = null;
try {
opusEncoder = new OpusEncoder(mSamplingRate, mChannels, mFrameSize, mBitRate, mApplication);
mAudioRecord.startRecording();
short[] emptyBuffer = new short[oneFrameDataCount];
short[] pcmBuffer = new short[oneFrameDataCount];
byte[] opusFrameBuffer = opusEncoder.bufferAllocate();
while (!mStopFlag) {
int readSize = mAudioRecord.read(pcmBuffer, 0, oneFrameDataCount);
if (readSize > 0) {
int opusFrameBufferLength;
if (isMute()) {
opusFrameBufferLength = opusEncoder.encode(emptyBuffer, readSize, opusFrameBuffer);
} else {
opusFrameBufferLength = opusEncoder.encode(pcmBuffer, readSize, opusFrameBuffer);
}
if (opusFrameBufferLength > 0 && mAudioRecordCallback != null) {
mAudioRecordCallback.onPeriodicNotification(opusFrameBuffer, opusFrameBufferLength);
}
} else if (readSize == AudioRecord.ERROR_INVALID_OPERATION) {
if (DEBUG) {
Log.e(TAG, "Invalid operation error.");
}
break;
} else if (readSize == AudioRecord.ERROR_BAD_VALUE) {
if (DEBUG) {
Log.e(TAG, "Bad value error.");
}
break;
} else if (readSize == AudioRecord.ERROR) {
if (DEBUG) {
Log.e(TAG, "Unknown error.");
}
break;
}
}
} finally {
if (mEchoCanceler != null) {
mEchoCanceler.release();
mEchoCanceler = null;
}
if (opusEncoder != null) {
opusEncoder.release();
}
}
}
Example 13
| Source File: PermissionUtil.java From AlbumCameraRecorder with MIT License | 4 votes |
|
/**
* 用于检测是否具有录音权限
*
* @return 状态：是否具有
*/
public static int getRecordState() {
int minBuffer = AudioRecord.getMinBufferSize(44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat
.ENCODING_PCM_16BIT);
AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, 44100, AudioFormat
.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, (minBuffer * 100));
short[] point = new short[minBuffer];
int readSize;
try {
audioRecord.startRecording();//检测是否可以进入初始化状态
} catch (Exception e) {
if (audioRecord != null) {
audioRecord.release();
audioRecord = null;
}
return STATE_NO_PERMISSION;
}
if (audioRecord.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
//6.0以下机型都会返回此状态，故使用时需要判断bulid版本
//检测是否在录音中
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
Log.d("CheckAudioPermission", "录音机被占用");
}
return STATE_RECORDING;
} else {
//检测是否可以获取录音结果
readSize = audioRecord.read(point, 0, point.length);
if (readSize <= 0) {
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
}
Log.d("CheckAudioPermission", "录音的结果为空");
return STATE_NO_PERMISSION;
} else {
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
}
return STATE_SUCCESS;
}
}
}
Example 14
| Source File: MonitorActivity.java From protect-baby-monitor with GNU General Public License v3.0 | 4 votes |
|
private void serviceConnection(Socket socket) throws IOException
{
MonitorActivity.this.runOnUiThread(new Runnable()
{
@Override
public void run()
{
final TextView statusText = (TextView) findViewById(R.id.textStatus);
statusText.setText(R.string.streaming);
}
});
final int frequency = 11025;
final int channelConfiguration = AudioFormat.CHANNEL_IN_MONO;
final int audioEncoding = AudioFormat.ENCODING_PCM_16BIT;
final int bufferSize = AudioRecord.getMinBufferSize(frequency, channelConfiguration, audioEncoding);
final AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC,
frequency, channelConfiguration,
audioEncoding, bufferSize);
final int byteBufferSize = bufferSize*2;
final byte[] buffer = new byte[byteBufferSize];
try
{
audioRecord.startRecording();
final OutputStream out = socket.getOutputStream();
socket.setSendBufferSize(byteBufferSize);
Log.d(TAG, "Socket send buffer size: " + socket.getSendBufferSize());
while (socket.isConnected() && Thread.currentThread().isInterrupted() == false)
{
final int read = audioRecord.read(buffer, 0, bufferSize);
out.write(buffer, 0, read);
}
}
finally
{
audioRecord.stop();
}
}
Example 15
| Source File: CheckPermission.java From imsdk-android with MIT License | 4 votes |
|
/**
* 用于检测是否具有录音权限
*
* @return
*/
public static int getRecordState() {
int minBuffer = AudioRecord.getMinBufferSize(44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat
.ENCODING_PCM_16BIT);
AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, 44100, AudioFormat
.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, (minBuffer * 100));
short[] point = new short[minBuffer];
int readSize = 0;
try {
audioRecord.startRecording();//检测是否可以进入初始化状态
} catch (Exception e) {
if (audioRecord != null) {
audioRecord.release();
audioRecord = null;
}
return STATE_NO_PERMISSION;
}
if (audioRecord.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
//6.0以下机型都会返回此状态，故使用时需要判断bulid版本
//检测是否在录音中
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
Log.d("CheckAudioPermission", "录音机被占用");
}
return STATE_RECORDING;
} else {
//检测是否可以获取录音结果
readSize = audioRecord.read(point, 0, point.length);
if (readSize <= 0) {
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
}
Log.d("CheckAudioPermission", "录音的结果为空");
return STATE_NO_PERMISSION;
} else {
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
}
return STATE_SUCCESS;
}
}
}
Example 16
| Source File: SoundRecorder.java From AAVT with Apache License 2.0 | 4 votes |
|
public void start(){
if(!isStarted){
stopFlag=false;
mRecordBufferSize = AudioRecord.getMinBufferSize(mRecordSampleRate,
mRecordChannelConfig, mRecordAudioFormat)*2;
mRecord=new AudioRecord(MediaRecorder.AudioSource.MIC,mRecordSampleRate,mRecordChannelConfig,
mRecordAudioFormat,mRecordBufferSize);
mRecord.startRecording();
try {
MediaFormat format=convertAudioConfigToFormat(mConfig.mAudio);
mAudioEncoder=MediaCodec.createEncoderByType(format.getString(MediaFormat.KEY_MIME));
mAudioEncoder.configure(format,null,null,MediaCodec.CONFIGURE_FLAG_ENCODE);
mAudioEncoder.start();
} catch (IOException e) {
e.printStackTrace();
}
Thread thread=new Thread(new Runnable() {
@Override
public void run() {
while (!stopFlag&&!audioEncodeStep(false)){};
audioEncodeStep(true);
Log.e("wuwang","audio stop");
if(isStarted){
mRecord.stop();
mRecord.release();
mRecord=null;
}
if(mAudioEncoder!=null){
mAudioEncoder.stop();
mAudioEncoder.release();
mAudioEncoder=null;
}
isStarted=false;
}
});
thread.start();
startTime=SystemClock.elapsedRealtimeNanos();
isStarted=true;
}
}
Example 17
| Source File: CheckPermission.java From imsdk-android with MIT License | 4 votes |
|
/**
* 用于检测是否具有录音权限
*
* @return
*/
public static int getRecordState() {
int minBuffer = AudioRecord.getMinBufferSize(44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat
.ENCODING_PCM_16BIT);
AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, 44100, AudioFormat
.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, (minBuffer * 100));
short[] point = new short[minBuffer];
int readSize = 0;
try {
audioRecord.startRecording();//检测是否可以进入初始化状态
} catch (Exception e) {
if (audioRecord != null) {
audioRecord.release();
audioRecord = null;
}
return STATE_NO_PERMISSION;
}
if (audioRecord.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
//6.0以下机型都会返回此状态，故使用时需要判断bulid版本
//检测是否在录音中
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
Log.d("CheckAudioPermission", "录音机被占用");
}
return STATE_RECORDING;
} else {
//检测是否可以获取录音结果
readSize = audioRecord.read(point, 0, point.length);
if (readSize <= 0) {
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
}
Log.d("CheckAudioPermission", "录音的结果为空");
return STATE_NO_PERMISSION;
} else {
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
}
return STATE_SUCCESS;
}
}
}
Example 18
| Source File: CheckPermission.java From PictureSelector with Apache License 2.0 | 4 votes |
|
/**
* 用于检测是否具有录音权限
*
* @return
*/
public static int getRecordState() {
int minBuffer = AudioRecord.getMinBufferSize(44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat
.ENCODING_PCM_16BIT);
AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, 44100, AudioFormat
.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, (minBuffer * 100));
short[] point = new short[minBuffer];
int readSize = 0;
try {
audioRecord.startRecording();//检测是否可以进入初始化状态
} catch (Exception e) {
if (audioRecord != null) {
audioRecord.release();
audioRecord = null;
}
return STATE_NO_PERMISSION;
}
if (audioRecord.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
//6.0以下机型都会返回此状态，故使用时需要判断bulid版本
//检测是否在录音中
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
}
return STATE_RECORDING;
} else {
//检测是否可以获取录音结果
readSize = audioRecord.read(point, 0, point.length);
if (readSize <= 0) {
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
}
return STATE_NO_PERMISSION;
} else {
if (audioRecord != null) {
audioRecord.stop();
audioRecord.release();
audioRecord = null;
}
return STATE_SUCCESS;
}
}
}
Example 19
| Source File: MainActivity.java From android-fskmodem with GNU General Public License v3.0 | 4 votes |
|
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
/// INIT FSK CONFIG
try {
mConfig = new FSKConfig(FSKConfig.SAMPLE_RATE_44100, FSKConfig.PCM_16BIT, FSKConfig.CHANNELS_MONO, FSKConfig.SOFT_MODEM_MODE_4, FSKConfig.THRESHOLD_20P);
} catch (IOException e1) {
e1.printStackTrace();
}
/// INIT FSK DECODER
mDecoder = new FSKDecoder(mConfig, new FSKDecoderCallback() {
@Override
public void decoded(byte[] newData) {
final String text = new String(newData);
runOnUiThread(new Runnable() {
public void run() {
TextView view = ((TextView) findViewById(R.id.result));
view.setText(view.getText()+text);
}
});
}
});
///
//make sure that the settings of the recorder match the settings of the decoder
//most devices cant record anything but 44100 samples in 16bit PCM format...
mBufferSize = AudioRecord.getMinBufferSize(FSKConfig.SAMPLE_RATE_44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
//scale up the buffer... reading larger amounts of data
//minimizes the chance of missing data because of thread priority
mBufferSize *= 10;
//again, make sure the recorder settings match the decoder settings
mRecorder = new AudioRecord(AudioSource.MIC, FSKConfig.SAMPLE_RATE_44100, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, mBufferSize);
if (mRecorder.getState() == AudioRecord.STATE_INITIALIZED) {
mRecorder.startRecording();
//start a thread to read the audio data
Thread thread = new Thread(mRecordFeed);
thread.setPriority(Thread.MAX_PRIORITY);
thread.start();
}
else {
Log.i("FSKDecoder", "Please check the recorder settings, something is wrong!");
}
}
Example 20
| Source File: AudioSource.java From science-journal with Apache License 2.0 | 4 votes |
|
private void start() {
// FYI: the current thread holds lockAudioReceivers.
// Use VOICE_COMMUNICATION to filter out audio coming from the speakers
final AudioRecord audioRecord =
new AudioRecord(
MediaRecorder.AudioSource.VOICE_COMMUNICATION,
SAMPLE_RATE_IN_HZ,
CHANNEL_CONFIG,
AUDIO_FORMAT,
minBufferSizeInBytes);
if (audioRecord.getState() != AudioRecord.STATE_INITIALIZED) {
audioRecord.release();
return;
}
audioRecord.startRecording();
// AudioRecord.startRecording() logs an error but it has no return value and
// doesn't throw an exception when someone else is using the mic.
if (audioRecord.getRecordingState() != AudioRecord.RECORDSTATE_RECORDING) {
audioRecord.release();
return;
}
running.set(true);
future =
executorService.submit(
() -> {
short[] buffer = new short[minBufferSizeInBytes / 2];
int offset = 0;
boolean goodDataRead = false;
while (running.get()) {
int readShorts = audioRecord.read(buffer, offset, buffer.length - offset);
// On some devices (Moto E, for example) we get a bunch of zeros when we first
// start reading. Ignore those zeros.
if (!goodDataRead) {
int countLeadingZeros = 0;
while (countLeadingZeros < readShorts && buffer[countLeadingZeros] == 0) {
countLeadingZeros++;
}
if (countLeadingZeros > 0) {
if (readShorts > countLeadingZeros) {
System.arraycopy(
buffer, countLeadingZeros, buffer, 0, readShorts - countLeadingZeros);
}
readShorts -= countLeadingZeros;
}
goodDataRead = (readShorts > 0);
}
offset += readShorts;
// If the buffer is full, call the Receivers.
if (offset == buffer.length) {
synchronized (lockAudioReceivers) {
for (AudioReceiver audioReceiver : audioReceivers) {
audioReceiver.onReceiveAudio(buffer);
}
}
offset = 0;
}
}
audioRecord.stop();
audioRecord.release();
});
}
