Examples with AudioRecord android.media.AudioRecord used on opensource projects

Example 26 with AudioRecord

use of android.media.AudioRecord in project robolectric by robolectric.

the class ShadowAudioRecordTest method nativeReadByteFillsAudioDataByDefault.

@Test
public void nativeReadByteFillsAudioDataByDefault() {
    AudioRecord audioRecord = createAudioRecord();
    audioRecord.startRecording();
    assertThat(audioRecord.read(new byte[100], 0, 100)).isEqualTo(100);
}

Example 27 with AudioRecord

use of android.media.AudioRecord in project robolectric by robolectric.

the class ShadowAudioRecordTest method nativeReadShortCallsAudioRecordSourceWhenSetNonBlockingMOnwards.

@Test
@Config(minSdk = M)
public void nativeReadShortCallsAudioRecordSourceWhenSetNonBlockingMOnwards() {
    AudioRecordSource source = Mockito.mock(AudioRecordSource.class);
    ShadowAudioRecord.setSource(source);
    AudioRecord audioRecord = createAudioRecord();
    audioRecord.startRecording();
    audioRecord.read(new short[100], 0, 100, AudioRecord.READ_NON_BLOCKING);
    verify(source).readInShortArray(any(short[].class), eq(0), eq(100), /* isBlocking=*/
    eq(false));
    verifyNoMoreInteractions(source);
}

Example 28 with AudioRecord

use of android.media.AudioRecord in project Horizon by Yalantis.

the class DemoActivity method initRecorder.

private void initRecorder() {
    final int bufferSize = 2 * AudioRecord.getMinBufferSize(RECORDER_SAMPLE_RATE, RECORDER_CHANNELS, RECORDER_AUDIO_ENCODING);
    audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, RECORDER_SAMPLE_RATE, RECORDER_CHANNELS, RECORDER_AUDIO_ENCODING, bufferSize);
    AudioUtil.initProcessor(RECORDER_SAMPLE_RATE, RECORDER_CHANNELS, RECORDER_ENCODING_BIT);
    recordingThread = new Thread("recorder") {

        @Override
        public void run() {
            super.run();
            buffer = new byte[bufferSize];
            Looper.prepare();
            audioRecord.setRecordPositionUpdateListener(recordPositionUpdateListener, new Handler(Looper.myLooper()));
            int bytePerSample = RECORDER_ENCODING_BIT / 8;
            float samplesToDraw = bufferSize / bytePerSample;
            audioRecord.setPositionNotificationPeriod((int) samplesToDraw);
            // We need to read first chunk to motivate recordPositionUpdateListener.
            // Mostly, for lower versions - https://code.google.com/p/android/issues/detail?id=53996
            audioRecord.read(buffer, 0, bufferSize);
            Looper.loop();
        }
    };
}

Example 29 with AudioRecord

use of android.media.AudioRecord in project actor-platform by actorapp.

the class AudioStreamVolumeValueActor method subscribeForVolume.

private void subscribeForVolume(VolumeValueListener callback) {
    if (audioRecord == null) {
        int minBufferSize = AudioRecord.getMinBufferSize(16000, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
        int bufferSize = 16 * minBufferSize;
        audioRecord = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, 16000, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferSize);
        audioRecord.startRecording();
    }
    callbacks.add(callback);
    if (!inited) {
        inited = true;
        schedule(new Check(), delay);
    }
}

Example 30 with AudioRecord

use of android.media.AudioRecord in project actor-platform by actorapp.

the class VoiceCaptureActor method onStartMessage.

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());
}