android – 来自AudioRecord的Amplitude

private class measuresnoreAudio extends AsyncTask<String,String,String> {

    @Override
    protected String doInBACkground(String... params) {


            Log.d(tag,"CreaTing the buffer of size " + BUFFER_SIZE);
            byte[] buffer = new byte[BUFFER_SIZE];

            Log.d(tag,"CreaTing the AudioRecord");
            recorder = new AudioRecord(MediaRecorder.Audiosource.MIC,RECORDING_RATE,CHAnnEL,FORMAT,BUFFER_SIZE * 10);

            Log.d(tag,"AudioRecord recording...");
            recorder.startRecording();

            while (isRecordingsnorE) {

                // read the data into the buffer
                int read = recorder.read(buffer,buffer.length);
                int aR_440_11845@plitude = (buffer[0] & 0xff) << 8 | buffer[1];

                // Deter@L_607_9@ amplitude
                double amplitudeDb = 20 * Math
                        .log10(Math.abs(amplitudE) / 32768);
                String dbString = String.valueOf(amplitudeDb);
                Log.d("snore DB","dB " + dbString);
                //TextView textAmplitude = (TextView) findViewById(R.id.tvAmplitudE);
                //textAmplitude.setText(dbString);
            }

            Log.d(tag,"AudioRecord finished recording");
        return null;
    }
}