Example usage for android.media AudioRecord AudioRecord

Introduction

In this page you can find the example usage for android.media AudioRecord AudioRecord.

Prototype

public AudioRecord(int audioSource, int sampleRateInHz, int channelConfig, int audioFormat,
        int bufferSizeInBytes) throws IllegalArgumentException 

Source Link

Document

Class constructor.

Usage

From source file:com.brejza.matt.habmodem.Dsp_service.java

public void startAudio() {
    if (!_enableDecoder)
        return;/*w w w .  j  a v  a  2  s . c  o  m*/

    boolean mic = this.getPackageManager().hasSystemFeature(PackageManager.FEATURE_MICROPHONE);

    System.out.println("isRecording: " + isRecording);
    logEvent("Starting Audio. Mic avaliable: " + mic, false);
    if (!isRecording) {
        isRecording = true;

        buffsize = AudioRecord.getMinBufferSize(8000, AudioFormat.CHANNEL_IN_MONO,
                AudioFormat.ENCODING_PCM_16BIT);
        buffsize = Math.max(buffsize, 3000);

        mRecorder = new AudioRecord(AudioSource.MIC, 8000, AudioFormat.CHANNEL_IN_MONO,
                AudioFormat.ENCODING_PCM_16BIT, buffsize);

        mPlayer = new AudioTrack(AudioManager.STREAM_MUSIC, 8000, AudioFormat.CHANNEL_OUT_MONO,
                AudioFormat.ENCODING_PCM_16BIT, 2 * buffsize, AudioTrack.MODE_STREAM);

        if (enableEcho) {
            AudioManager manager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
            manager.setMode(AudioManager.MODE_IN_CALL);
            manager.setSpeakerphoneOn(true);
        }

        if (mRecorder.getState() != AudioRecord.STATE_INITIALIZED) {

            mRecorder = new AudioRecord(AudioSource.DEFAULT, 8000, AudioFormat.CHANNEL_IN_MONO,
                    AudioFormat.ENCODING_PCM_16BIT, buffsize);

            if (mRecorder.getState() != AudioRecord.STATE_INITIALIZED) {
                logEvent("Error - Could not initialise audio", true);
                return;
            }
            logEvent("Using default audio source", false);
        }

        mRecorder.startRecording();
        System.out.println("STARTING THREAD");
        Thread ct = new captureThread();
        logEvent("Starting Audio Thread.", false);
        setDecoderRunningNotification();
        ct.start();
    }
}

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From source file:com.smc.tw.waltz.MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    if (DEBUG)//from   w  w  w  . j  a  v  a  2  s.  co m
        Log.d(TAG, "onCreate");

    overridePendingTransition(R.anim.slide_right_in, R.anim.slide_left_out);

    super.onCreate(savedInstanceState);

    Fabric.with(this, new Crashlytics());

    setContentView(R.layout.activity_main);

    mPowerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
    mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);

    mWakeLock = mPowerManager.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, TAG);

    mPreferences = PreferenceManager.getDefaultSharedPreferences(this);

    mFragmentManager = getSupportFragmentManager();

    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

    mAudioRecordBufferSize = 5600;//AudioRecord.getMinBufferSize(8000, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT)*10;
    mAudioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, 8000, AudioFormat.CHANNEL_IN_MONO,
            AudioFormat.ENCODING_PCM_16BIT, mAudioRecordBufferSize);

    mNotifyChannelList = new ArrayList<String>();

    setupLayout();

    if (savedInstanceState != null) {
        mCurrentSelectedPosition = savedInstanceState.getInt(STATE_SELECTED_POSITION);
    }

    //      mRegistrationBroadcastReceiver = new BroadcastReceiver() {
    //         @Override
    //         public void onReceive(Context context, Intent intent) {
    //
    //            // checking for type intent filter
    //            if (intent.getAction().equals(MainApplication.REGISTRATION_COMPLETE)) {
    //               // gcm successfully registered
    //               // now subscribe to `global` topic to receive app wide notifications
    //               String token = intent.getStringExtra("token");
    //
    //               //Toast.makeText(getApplicationContext(), "GCM registration token: " + token, Toast.LENGTH_LONG).show();
    //
    //            } else if (intent.getAction().equals(MainApplication.SENT_TOKEN_TO_SERVER)) {
    //               // gcm registration id is stored in our server's MySQL
    //
    //               Toast.makeText(getApplicationContext(), "GCM registration token is stored in server!", Toast.LENGTH_LONG).show();
    //
    //            } else if (intent.getAction().equals(MainApplication.PUSH_NOTIFICATION)) {
    //               // new push notification is received
    //
    //               Toast.makeText(getApplicationContext(), "Push notification is received!", Toast.LENGTH_LONG).show();
    //            }
    //         }
    //      };
    //
    if (checkPlayServices()) {
        registerGCM();
    }

}

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From source file:info.guardianproject.iocipher.camera.VideoCameraActivity.java

private void initAudio(final String audioPath) throws Exception {

    fileAudio = new File(audioPath);

    outputStreamAudio = new BufferedOutputStream(new info.guardianproject.iocipher.FileOutputStream(fileAudio),
            8192 * 8);//from w  w w .  j a  v  a  2s . c  o  m

    if (useAAC) {
        aac = new AACHelper();
        aac.setEncoder(MediaConstants.sAudioSampleRate, MediaConstants.sAudioChannels,
                MediaConstants.sAudioBitRate);
    } else {

        int minBufferSize = AudioRecord.getMinBufferSize(MediaConstants.sAudioSampleRate,
                MediaConstants.sChannelConfigIn, AudioFormat.ENCODING_PCM_16BIT) * 8;

        audioData = new byte[minBufferSize];

        int audioSource = MediaRecorder.AudioSource.CAMCORDER;

        if (this.getCameraDirection() == CameraInfo.CAMERA_FACING_FRONT) {
            audioSource = MediaRecorder.AudioSource.MIC;

        }

        audioRecord = new AudioRecord(audioSource, MediaConstants.sAudioSampleRate,
                MediaConstants.sChannelConfigIn, AudioFormat.ENCODING_PCM_16BIT, minBufferSize);
    }
}

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From source file:com.example.sensingapp.SensingApp.java

private void startAudioRecording() {
    m_audioRecorder = new AudioRecord(MediaRecorder.AudioSource.MIC, m_nAudioSampleRate,
            AudioFormat.CHANNEL_IN_STEREO, AudioFormat.ENCODING_PCM_16BIT, m_nBufferSize);

    if (m_audioRecorder == null)
        return;//from   w  w w . ja  va  2s  .  c  o  m

    int i = m_audioRecorder.getState();
    if (i == AudioRecord.STATE_INITIALIZED) {
        m_audioRecorder.startRecording();
    } else {
        return;
    }

    if (m_blnRecordSoundLevel == true || m_blnRecordSoundFile == true) {
        m_processSoundThread = new Thread(new Runnable() {
            public void run() {
                processAudioData();
            }
        }, "Audio Thread");

        m_processSoundThread.start();

        if (m_blnRecordSoundLevel == true) {
            m_soundLevelThread = new Thread(new Runnable() {
                public void run() {
                    calculateAudioSoundLevel();
                }
            }, "Sould Level Thread");

            m_soundLevelThread.start();
        }
    }

}

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