Logo Questions Linux Laravel Mysql Ubuntu Git Menu
 

Android AudioRecord - Won't Initialize 2nd time

Tags:

Hej, im currently trying to get AudioRecord to work. Because I need it in a bigger project. But it seems to mess up a lot. I have been trying alot of things, so I went back to basic when I traced this bug. I am using my Samsung Galaxy S as my debugdevice.

My problem is, first time after a reboot of my device I can initialize the AudioRecord object I create without problems. But the second time I run it, it won't initialize the AudioRecord object. I have tried several frequencies, fyi.

Here is my code:

package android.audiorecordtest;

import android.app.Activity;
import android.media.AudioFormat;
import android.media.AudioRecord;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class AudioRecordTest extends Activity {

    int frequency;
    AudioRecord audRec;
    TextView txtVw;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        txtVw = (TextView) findViewById(R.id.txtVw);


        frequency=8000;
        int bufferSize=(AudioRecord.getMinBufferSize(frequency, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT))*2;
        if (bufferSize>0) {
            audRec = new AudioRecord(MediaRecorder.AudioSource.MIC, frequency, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferSize);
                int status = audRec.getState();
        if (status == AudioRecord.STATE_INITIALIZED) {
            txtVw.setText("Initialized" + frequency);
        } else {
            txtVw.setText("Not Initialized i=" + frequency);
        }
        }

After a few hours of looking through logcat information i found this event

    02-28 10:46:37.048: DEBUG/dalvikvm(4477): GC_EXPLICIT freed 1801 objects / 98944 bytes in 97ms
02-28 10:46:37.048: VERBOSE/AudioRecord(4477): stop

Which seems to "release the native hold on the AudioRecord. So i tried doing an override of finalize with my Audiorecord object.release(). This didnt work though.. Anyone have any idea?


Donate For Us

If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!