Example usage for android.media AudioFormat ENCODING_PCM

Introduction

In this page you can find the example usage for android.media AudioFormat ENCODING_PCM_16BIT.

Prototype

int ENCODING_PCM_16BIT

To view the source code for android.media AudioFormat ENCODING_PCM_16BIT.

Click Source Link

Document

Audio data format: PCM 16 bit per sample.

Usage

From source file:edu.nchu.cs.dmlab.firemap.mjpeg.RecMicToMp3.java

/**
 * Start recording//from  w  w  w  .ja  v a 2s . c  o m
 */
public void start() {
    // just skip if recording has happened
    if (mIsRecording) {
        return;
    }

    new Thread() {
        @Override
        public void run() {
            if (mHandler != null)
                mHandler.sendEmptyMessage(Message.MSG_DIALOG_OPEN);
            android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_URGENT_AUDIO);
            // caculate minimax buffersize
            final int minBufferSize = AudioRecord.getMinBufferSize(mSampleRate, AudioFormat.CHANNEL_IN_MONO,
                    AudioFormat.ENCODING_PCM_16BIT);
            if (minBufferSize < 0) {
                if (mHandler != null) {
                    mHandler.sendEmptyMessage(Message.MSG_ERROR_GET_MIN_BUFFERSIZE);
                }
                return;
            }
            AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, mSampleRate,
                    AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, minBufferSize * 2);
            // PCM buffer size (5sec)
            short[] buffer = new short[mSampleRate * (16 / 8) * 1 * 5]; // SampleRate[Hz] * 16bit * Mono * 5sec
            byte[] mp3buffer = new byte[(int) (7200 + buffer.length * 2 * 1.25)];

            FileOutputStream output = null;
            try {
                output = new FileOutputStream(mFile);
            } catch (FileNotFoundException e) {
                if (mHandler != null) {
                    mHandler.sendEmptyMessage(Message.MSG_ERROR_CREATE_FILE);
                }
                return;
            }

            // Lame init
            SimpleLame.init(mSampleRate, 1, mSampleRate, 32);

            try {
                try {
                    audioRecord.startRecording();
                    mIsRecording = true;
                } catch (IllegalStateException e) {
                    if (mHandler != null) {
                        mHandler.sendEmptyMessage(Message.MSG_ERROR_REC_START);
                    }
                    return;
                }

                try {
                    if (mHandler != null) {
                        mHandler.sendEmptyMessage(Message.MSG_REC_STARTED);
                    }

                    int readSize = 0;
                    while (mIsRecording) {
                        readSize = audioRecord.read(buffer, 0, minBufferSize);
                        if (readSize < 0) {
                            if (mHandler != null) {
                                mHandler.sendEmptyMessage(Message.MSG_ERROR_AUDIO_RECORD);
                            }
                            break;
                            // no data
                        } else if (readSize == 0) {
                            ;
                            // fetch data
                        } else {
                            int encResult = SimpleLame.encode(buffer, buffer, readSize, mp3buffer);
                            if (encResult < 0) {
                                if (mHandler != null) {
                                    mHandler.sendEmptyMessage(Message.MSG_ERROR_AUDIO_ENCODE);
                                }
                                break;
                            }
                            if (encResult != 0) {
                                try {
                                    output.write(mp3buffer, 0, encResult);
                                } catch (IOException e) {
                                    if (mHandler != null) {
                                        mHandler.sendEmptyMessage(Message.MSG_ERROR_WRITE_FILE);
                                    }
                                    break;
                                }
                            }
                        }
                    }
                    int flushResult = SimpleLame.flush(mp3buffer);
                    if (flushResult < 0) {
                        if (mHandler != null) {
                            mHandler.sendEmptyMessage(Message.MSG_ERROR_AUDIO_ENCODE);
                        }
                    }
                    if (flushResult != 0) {
                        try {
                            output.write(mp3buffer, 0, flushResult);
                        } catch (IOException e) {
                            if (mHandler != null) {
                                mHandler.sendEmptyMessage(Message.MSG_ERROR_WRITE_FILE);
                            }
                        }
                    }

                    try {
                        output.close();
                    } catch (IOException e) {
                        if (mHandler != null) {
                            mHandler.sendEmptyMessage(Message.MSG_ERROR_CLOSE_FILE);
                        }
                    }
                } finally {
                    audioRecord.stop();
                    audioRecord.release();
                }
            } finally {
                SimpleLame.close();
                mIsRecording = false;
            }

            if (mHandler != null) {
                mHandler.sendEmptyMessage(Message.MSG_REC_STOPPED);
            }

            // Upload Audio
            uploadVoice();
            if (mHandler != null)
                mHandler.sendEmptyMessage(Message.MSG_DIALOG_CLOSE);
        }
    }.start();
}

From source file:com.ibm.watson.developer_cloud.android.text_to_speech.v1.TTSUtility.java

private void initPlayer() {
    stopTtsPlayer();//from  ww w  .j a v  a 2s. co  m
    // IMPORTANT: minimum required buffer size for the successful creation of an AudioTrack instance in streaming mode.
    int bufferSize = AudioTrack.getMinBufferSize(sampleRate, AudioFormat.CHANNEL_OUT_MONO,
            AudioFormat.ENCODING_PCM_16BIT);

    synchronized (this) {
        audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate, AudioFormat.CHANNEL_OUT_MONO,
                AudioFormat.ENCODING_PCM_16BIT, bufferSize, AudioTrack.MODE_STREAM);
        if (audioTrack != null)
            audioTrack.play();
    }
}

From source file:re.serialout.MainScreen.java

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);//from   w  ww . java2  s .  c o  m
    //Set up patient tracking
    dbhelper = new PatientDbHelper(this);
    //Set up communications
    AudioSerialOutMono.activate();
    AudioSerialOutMono.context = this.getApplicationContext();
    for (int rate : new int[] { 8000, 11025, 16000, 22050, 44100 }) {
        //Just here to make sure that the buffer types we are using are ok for the phone.
        //Debug thing.
        int bufferSize = AudioRecord.getMinBufferSize(rate, AudioFormat.CHANNEL_CONFIGURATION_DEFAULT,
                AudioFormat.ENCODING_PCM_16BIT);
        if (bufferSize > 0) {
            System.out.println("Buffer size not 0 for rate: " + rate);
        }
    }
    am = (AudioManager) this.getSystemService(Context.AUDIO_SERVICE);
    am.registerMediaButtonEventReceiver(new ComponentName(this, ButtonReciver.class));
    setUpFreqSlider();
    //        playSine.start();
    playSine.adjustFreq(14000);
    TextView pHoutput = (TextView) findViewById(R.id.instrText);
    //Check for pateint ID and log patient in
    commandInterface = new CommandInterface(buadRate, this.getApplicationContext(), pHoutput);
    if (savedInstanceState != null) {
        idSet = savedInstanceState.getBoolean("idSet");
        if (idSet) {
            idText = savedInstanceState.getString("idText");
            hideIDViews();
            settings = dbhelper.getSettings(Integer.parseInt(idText));
            if (settings.isFirstTime()) {
                Intent intent = new Intent(this, DemographicActivity.class);
                intent.putExtra("patientID", idText);
                startActivity(intent);
            }
            if (settings.isSurveyReady()) {
                (findViewById(R.id.startSurvey)).setVisibility(View.VISIBLE);
            }
        }
    }

    SharedPreferences sharedPreferences = getPreferences(MODE_PRIVATE);
    clincMode = sharedPreferences.getBoolean("clincMode", false);
    if (!clincMode) {
        System.out.println("Not in clinic mode");
        idSet = sharedPreferences.getBoolean("idSet", false);
        if (idSet) {
            idText = sharedPreferences.getString("idText", "");
            System.out.println("id is: " + idText);
            hideIDViews();
        }
    }
    //        new checkForUpdates().execute();
}

From source file:com.example.rttytranslator.Dsp_service.java

public void startAudio() {
    if (!_enableDecoder)
        return;/*from ww  w  . ja  v  a2s.co  m*/

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

    System.out.println("isRecording: " + isRecording);

    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);

        }

        mRecorder.startRecording();
        System.out.println("STARTING THREAD");
        Thread ct = new captureThread();

        ct.start();
    }
}

From source file:com.royer.bangstopwatch.app.StopwatchFragment.java

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);

    Log.d(TAG, "Enter onActivityCreated...");

    InitTimeDisplayView();//from w ww.  jav a2 s  . c  o m

    mLapList = (ListView) getView().findViewById(R.id.listLap);
    this.registerForContextMenu(mLapList);

    btnStart = (Button) getView().findViewById(R.id.btnStart);
    btnStart.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            if (state == STATE_NONE) {
                // detect does device support record ?
                if (AudioRecord.getMinBufferSize(44100, AudioFormat.CHANNEL_IN_MONO,
                        AudioFormat.ENCODING_PCM_16BIT) < 0) {
                    Context context = getActivity().getApplicationContext();

                    Toast toast = Toast.makeText(context, R.string.strNoRecorder, 5);
                    toast.show();
                    return;
                }

                AudioManager audiomanager = (AudioManager) getActivity()
                        .getSystemService(Context.AUDIO_SERVICE);
                Log.d(TAG, "AudioMode = " + audiomanager.getMode());
                if (audiomanager.getMode() != AudioManager.MODE_NORMAL) {
                    Context context = getActivity().getApplicationContext();

                    Toast toast = Toast.makeText(context, R.string.strInCalling, 5);
                    toast.show();
                    return;
                }

                state = STATE_COUNTDOWN;
                DialogFragment newFragment = CountdownDialog.NewInstance(5, getTag());
                newFragment.show(getFragmentManager(), "countdownDialog");

            } else {
                changeState();
                state = STATE_NONE;
                updateRealElapseTime();
                printTime();

                // unBind Recordservice
                if (mBound) {
                    mService.stopRecord();
                    mService.unsetBang();
                    getActivity().unbindService(mConnection);
                    getActivity().stopService(new Intent(getActivity(), RecordService.class));
                    mBound = false;
                }
            }
            ((MainActivity) getActivity()).EnableTab(1, state == STATE_NONE);
        }
    });

    if (savedInstanceState != null) {

        Log.d(TAG, "savedInstanceState " + savedInstanceState.toString());
        _timekeeper = savedInstanceState.getParcelable(STATE_TIMEKEEPER);
        mLapManager = savedInstanceState.getParcelable(STATE_LAPS);
        state = savedInstanceState.getInt(STATE_STATE);
        mBound = savedInstanceState.getBoolean(STATE_BOUNDING);
        ((MainActivity) getActivity()).EnableTab(1, state == STATE_NONE);

    } else {
        Log.d(TAG, "savedInstanceState == NULL");
        if (_timekeeper == null)
            _timekeeper = new Timekeeper();
        if (mLapManager == null)
            mLapManager = new LapManager();
    }
    InitLapList();

    printTime();
    updateState();

    Log.d(TAG, "Leave OnActivityCreated...");
}

From source file:de.badaix.snapcast.MainActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    for (int rate : new int[] { 8000, 11025, 16000, 22050, 44100, 48000 }) { // add the rates you wish to check against
        Log.d(TAG, "Samplerate: " + rate);
        int bufferSize = AudioRecord.getMinBufferSize(rate, AudioFormat.CHANNEL_OUT_STEREO,
                AudioFormat.ENCODING_PCM_16BIT);
        if (bufferSize > 0) {
            Log.d(TAG, "Samplerate: " + rate + ", buffer: " + bufferSize);
        }//  w  w  w  .  j  av  a  2s .c  om
    }

    AudioManager audioManager = (AudioManager) this.getSystemService(Context.AUDIO_SERVICE);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
        String rate = audioManager.getProperty(AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE);
        nativeSampleRate = Integer.valueOf(rate);
        //            String size = audioManager.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
        //            tvInfo.setText("Sample rate: " + rate + ", buffer size: " + size);
    }

    coordinatorLayout = (CoordinatorLayout) findViewById(R.id.myCoordinatorLayout);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    // Create the adapter that will return a fragment for each of the three
    // primary sections of the activity.
    sectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

    // Set up the ViewPager with the sections adapter.
    mViewPager = (ViewPager) findViewById(R.id.container);
    mViewPager.setAdapter(sectionsPagerAdapter);

    tabLayout = (TabLayout) findViewById(R.id.tabs);
    tabLayout.setupWithViewPager(mViewPager);
    mViewPager.setVisibility(View.GONE);

    setActionbarSubtitle("Host: no Snapserver found");

    new Thread(new Runnable() {
        @Override
        public void run() {
            Log.d(TAG, "copying snapclient");
            Setup.copyBinAsset(MainActivity.this, "snapclient", "snapclient");
            Log.d(TAG, "done copying snapclient");
        }
    }).start();

    sectionsPagerAdapter.setHideOffline(Settings.getInstance(this).getBoolean("hide_offline", false));
}

From source file:com.xperia64.timidityae.Globals.java

public static int[] validRates(boolean stereo, boolean sixteen) {
    ArrayList<Integer> valid = new ArrayList<Integer>();
    for (int rate : new int[] { 8000, 11025, 16000, 22050, 44100, 48000, 88200, 96000 }) {

        int bufferSize = AudioTrack.getMinBufferSize(rate,
                (stereo) ? AudioFormat.CHANNEL_OUT_STEREO : AudioFormat.CHANNEL_OUT_MONO,
                (sixteen) ? AudioFormat.ENCODING_PCM_16BIT : AudioFormat.ENCODING_PCM_8BIT);
        if (bufferSize > 0) {
            //System.out.println(rate+" "+bufferSize);
            // buffer size is valid, Sample rate supported
            valid.add(rate);/*from  ww  w. jav a  2 s . com*/
        }
    }
    int[] rates = new int[valid.size()];
    for (int i = 0; i < rates.length; i++)
        rates[i] = valid.get(i);
    return rates;
}

From source file:com.tt.engtrain.showcontent.ContentListItemActivity.java

@Override
protected void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_baselist);
    mSpeechEvaluator = SpeechEvaluator.createEvaluator(ContentListItemActivity.this, null);
    mToast = Toast.makeText(this, "", Toast.LENGTH_SHORT);
    int iMinBufSize = AudioTrack.getMinBufferSize(8000, AudioFormat.CHANNEL_CONFIGURATION_STEREO,
            AudioFormat.ENCODING_PCM_16BIT);
    audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, 8000, AudioFormat.CHANNEL_CONFIGURATION_STEREO,
            AudioFormat.ENCODING_PCM_16BIT, iMinBufSize, AudioTrack.MODE_STREAM);
    mTts = SpeechSynthesizer.createSynthesizer(this, mTtsInitListener);
    initData();/*w w w. j a  v a 2  s .  c  o  m*/
    initListView();
    // initspker();

}

From source file:com.ece420.lab3.MainActivity.java

private void queryNativeAudioParameters() {
    AudioManager myAudioMgr = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
    nativeSampleRate = myAudioMgr.getProperty(AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE);
    nativeSampleBufSize = myAudioMgr.getProperty(AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
    int recBufSize = AudioRecord.getMinBufferSize(Integer.parseInt(nativeSampleRate),
            AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT);
    supportRecording = true;/*from w w w.  j  av a2  s .com*/
    if (recBufSize == AudioRecord.ERROR || recBufSize == AudioRecord.ERROR_BAD_VALUE) {
        supportRecording = false;
    }
}

From source file:com.xperia64.timidityae.Globals.java

public static SparseIntArray validBuffers(int[] rates, boolean stereo, boolean sixteen) {
    SparseIntArray buffers = new SparseIntArray();
    for (int rate : rates) {
        buffers.put(rate,//w w w  .ja va2  s  .  c o  m
                AudioTrack.getMinBufferSize(rate,
                        (stereo) ? AudioFormat.CHANNEL_OUT_STEREO : AudioFormat.CHANNEL_OUT_MONO,
                        (sixteen) ? AudioFormat.ENCODING_PCM_16BIT : AudioFormat.ENCODING_PCM_8BIT));
    }
    return buffers;
    /*HashMap<Integer, Integer> buffers = new HashMap<Integer, Integer>();
    for(int rate : rates)
    {
       buffers.put(rate, AudioTrack.getMinBufferSize(rate, (stereo)?AudioFormat.CHANNEL_OUT_STEREO:AudioFormat.CHANNEL_OUT_MONO, (sixteen)?AudioFormat.ENCODING_PCM_16BIT:AudioFormat.ENCODING_PCM_8BIT));
    }
    return buffers;*/
}

Example usage for android.media AudioFormat ENCODING_PCM_16BIT

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