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

Example 11 with AudioRecord

use of android.media.AudioRecord in project android_frameworks_base by crdroidandroid.

the class MediaAudioEffectTest method test1_1ConstructorFromUuid.

//Test case 1.1: test constructor from effect uuid
@LargeTest
public void test1_1ConstructorFromUuid() throws Exception {
    boolean result = true;
    String msg = "test1_1ConstructorFromUuid()";
    AudioEffect.Descriptor[] desc = AudioEffect.queryEffects();
    assertTrue(msg + "no effects found", (desc.length != 0));
    try {
        int sessionId;
        AudioRecord ar = null;
        if (AudioEffect.EFFECT_PRE_PROCESSING.equals(desc[0].connectMode)) {
            ar = getAudioRecord();
            sessionId = ar.getAudioSessionId();
        } else {
            sessionId = 0;
        }
        AudioEffect effect = new AudioEffect(AudioEffect.EFFECT_TYPE_NULL, desc[0].uuid, 0, sessionId);
        assertNotNull(msg + ": could not create AudioEffect", effect);
        effect.release();
        if (ar != null) {
            ar.release();
        }
    } catch (IllegalArgumentException e) {
        msg = msg.concat(": Effect not found: " + desc[0].name);
        result = false;
    } catch (UnsupportedOperationException e) {
        msg = msg.concat(": Effect library not loaded");
        result = false;
    }
    assertTrue(msg, result);
}

Example 12 with AudioRecord

use of android.media.AudioRecord in project android_frameworks_base by AOSPA.

the class MediaAudioEffectTest method getAudioRecord.

//-----------------------------------------------------------------
// 1 - constructor
//----------------------------------
private AudioRecord getAudioRecord() {
    AudioRecord ar = null;
    try {
        ar = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, SAMPLING_RATE, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT, AudioRecord.getMinBufferSize(SAMPLING_RATE, AudioFormat.CHANNEL_CONFIGURATION_MONO, AudioFormat.ENCODING_PCM_16BIT) * 10);
        assertNotNull("Could not create AudioRecord", ar);
        assertEquals("AudioRecord not initialized", AudioRecord.STATE_INITIALIZED, ar.getState());
    } catch (IllegalArgumentException e) {
        fail("AudioRecord invalid parameter");
    }
    return ar;
}

Example 13 with AudioRecord

use of android.media.AudioRecord in project natural-voice-mobile-sdk-android by aimmatic.

the class VoiceRecorder method createAudioRecord.

/**
 * Creates a new {@link AudioRecord}.
 *
 * @return A newly created {@link AudioRecord}, or null if it cannot be created due to no permission
 * or no microphone available.
 */
private AudioRecord createAudioRecord() {
    for (int sampleRate : SAMPLE_RATE_CANDIDATES) {
        final int sizeInBytes = AudioRecord.getMinBufferSize(sampleRate, CHANNEL, ENCODING);
        if (sizeInBytes == AudioRecord.ERROR_BAD_VALUE) {
            continue;
        }
        final AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, sampleRate, CHANNEL, ENCODING, sizeInBytes);
        if (audioRecord.getState() == AudioRecord.STATE_INITIALIZED) {
            if (encodingType == VOICE_ENCODE_AS_FLAC) {
                // 1 CHANNEL mono
                // 16 ENCODING_PCM_16BIT
                this.samplreRate = sampleRate;
                this.sizeInBytes = sizeInBytes;
            }
            return audioRecord;
        } else {
            audioRecord.release();
        }
    }
    return null;
}

Example 14 with AudioRecord

use of android.media.AudioRecord in project magstripereader by brandonlw.

the class MagstripeReaderActivity method onCreate.

/**
 * Called when the activity is first created.
 */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    _data = getString(R.string.data_default);
    _SetText(false, _data);
    try {
        _bufferSize = AudioRecord.getMinBufferSize(_frequency, _channelConfig, _audioEncoding) * 8;
        _audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, _frequency, _channelConfig, _audioEncoding, _bufferSize);
    } catch (Exception ex) {
    // Do nothing
    }
}

Example 15 with AudioRecord

use of android.media.AudioRecord in project haven by guardianproject.

the class AudioCodec method start.

/**
 * Configures the recorder and starts it
 * @throws IOException
 * @throws IllegalStateException
 */
public void start() throws IllegalStateException, IOException {
    if (recorder == null) {
        minSize = AudioRecord.getMinBufferSize(8000, AudioFormat.CHANNEL_IN_DEFAULT, AudioFormat.ENCODING_PCM_16BIT);
        Log.e("AudioCodec", "Minimum size is " + minSize);
        recorder = new AudioRecord(MediaRecorder.AudioSource.MIC, 8000, AudioFormat.CHANNEL_IN_DEFAULT, AudioFormat.ENCODING_PCM_16BIT, minSize);
        recorder.startRecording();
    }
}