public DetectThread(CaptureThread rec) {
notes.put("C4", 261.6);
notes.put("C4#", 277.2);
notes.put("D4", 293.6);
notes.put("D4#", 311.1);
notes.put("E4", 329.6);
notes.put("F4", 349.2);
notes.put("F4#", 369.9);
notes.put("G4", 391.9);
notes.put("G4#", 415.3);
notes.put("A4", 440.0);
notes.put("A4#", 466.1);
notes.put("B4", 493.8);
notes.put("C5", 523.25);
notes.put("C5#", 554.36);
notes.put("D5", 587.3);
notes.put("D5#", 622.254);
notes.put("E5", 659.25);
notes.put("F5", 698.45);
notes.put("F5#", 739.98);
notes.put("G5", 783.9);
ct = rec;
AudioRecord ar = rec.getAudioRecord();
int bps = 0;
if (ar.getAudioFormat() == AudioFormat.ENCODING_PCM_16BIT) {
bps = 16;
} else if (ar.getAudioFormat() == AudioFormat.ENCODING_PCM_8BIT) {
bps = 8;
}
int channel = 0;
if (ar.getChannelConfiguration() == AudioFormat.CHANNEL_IN_MONO) {
channel = 1;
}
wh = new WaveHeader();
wh.setChannels(channel);
wh.setBitsPerSample(bps);
wh.setSampleRate(ar.getSampleRate());
analyzer = new Analyse(wh);
}
public void testAudioRecordProperties() throws Exception {
if (!hasMicrophone()) {
return;
}
assertEquals(AudioFormat.ENCODING_PCM_16BIT, mAudioRecord.getAudioFormat());
assertEquals(MediaRecorder.AudioSource.DEFAULT, mAudioRecord.getAudioSource());
assertEquals(1, mAudioRecord.getChannelCount());
assertEquals(AudioFormat.CHANNEL_CONFIGURATION_MONO, mAudioRecord.getChannelConfiguration());
assertEquals(AudioRecord.STATE_INITIALIZED, mAudioRecord.getState());
assertEquals(mHz, mAudioRecord.getSampleRate());
assertEquals(AudioRecord.RECORDSTATE_STOPPED, mAudioRecord.getRecordingState());
int bufferSize =
AudioRecord.getMinBufferSize(
mHz, AudioFormat.CHANNEL_CONFIGURATION_DEFAULT, AudioFormat.ENCODING_PCM_16BIT);
assertTrue(bufferSize > 0);
}
private int initRecording(int sampleRate, int channels) {
Logging.d(TAG, "initRecording(sampleRate=" + sampleRate + ", channels=" + channels + ")");
if (!WebRtcAudioUtils.hasPermission(context, android.Manifest.permission.RECORD_AUDIO)) {
Logging.e(TAG, "RECORD_AUDIO permission is missing");
return -1;
}
if (audioRecord != null) {
Logging.e(TAG, "InitRecording() called twice without StopRecording()");
return -1;
}
final int bytesPerFrame = channels * (BITS_PER_SAMPLE / 8);
final int framesPerBuffer = sampleRate / BUFFERS_PER_SECOND;
byteBuffer = ByteBuffer.allocateDirect(bytesPerFrame * framesPerBuffer);
Logging.d(TAG, "byteBuffer.capacity: " + byteBuffer.capacity());
emptyBytes = new byte[byteBuffer.capacity()];
// Rather than passing the ByteBuffer with every callback (requiring
// the potentially expensive GetDirectBufferAddress) we simply have the
// the native class cache the address to the memory once.
nativeCacheDirectBufferAddress(byteBuffer, nativeAudioRecord);
// Get the minimum buffer size required for the successful creation of
// an AudioRecord object, in byte units.
// Note that this size doesn't guarantee a smooth recording under load.
int minBufferSize =
AudioRecord.getMinBufferSize(
sampleRate, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
if (minBufferSize == AudioRecord.ERROR || minBufferSize == AudioRecord.ERROR_BAD_VALUE) {
Logging.e(TAG, "AudioRecord.getMinBufferSize failed: " + minBufferSize);
return -1;
}
Logging.d(TAG, "AudioRecord.getMinBufferSize: " + minBufferSize);
// Use a larger buffer size than the minimum required when creating the
// AudioRecord instance to ensure smooth recording under load. It has been
// verified that it does not increase the actual recording latency.
int bufferSizeInBytes = Math.max(BUFFER_SIZE_FACTOR * minBufferSize, byteBuffer.capacity());
Logging.d(TAG, "bufferSizeInBytes: " + bufferSizeInBytes);
try {
audioRecord =
new AudioRecord(
AudioSource.VOICE_COMMUNICATION,
sampleRate,
AudioFormat.CHANNEL_IN_MONO,
AudioFormat.ENCODING_PCM_16BIT,
bufferSizeInBytes);
} catch (IllegalArgumentException e) {
Logging.e(TAG, e.getMessage());
return -1;
}
if (audioRecord == null || audioRecord.getState() != AudioRecord.STATE_INITIALIZED) {
Logging.e(TAG, "Failed to create a new AudioRecord instance");
return -1;
}
Logging.d(
TAG,
"AudioRecord "
+ "session ID: "
+ audioRecord.getAudioSessionId()
+ ", "
+ "audio format: "
+ audioRecord.getAudioFormat()
+ ", "
+ "channels: "
+ audioRecord.getChannelCount()
+ ", "
+ "sample rate: "
+ audioRecord.getSampleRate());
if (effects != null) {
effects.enable(audioRecord.getAudioSessionId());
}
// TODO(phoglund): put back audioRecord.getBufferSizeInFrames when
// all known downstream users supports M.
// if (WebRtcAudioUtils.runningOnMOrHigher()) {
// Returns the frame count of the native AudioRecord buffer. This is
// greater than or equal to the bufferSizeInBytes converted to frame
// units. The native frame count may be enlarged to accommodate the
// requirements of the source on creation or if the AudioRecord is
// subsequently rerouted.
// Logging.d(TAG, "bufferSizeInFrames: "
// + audioRecord.getBufferSizeInFrames());
// }
return framesPerBuffer;
}