In the below code my audioRecord object is not initializing. I tried moving it to the onCreate method and made it a global. I've logged the state and that returns a value of 1 which means ready to use. The debugger says that startRecording is being called on an uninitialized object. It is also saying that it could not get the audio source.
Why am I getting these errors?
package com.tecmark;
import java.io.BufferedOutputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import android.app.Activity;
import android.media.AudioFormat;
import android.media.AudioRecord;
import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
public class recorder extends Activity {
private Thread thread;
private boolean isRecording;
private AudioRecord recorder;
private FileOutputStream os;
private BufferedOutputStream bos;
private DataOutputStream dos;
private TextView text;
private int audioSource = MediaRecorder.AudioSource.MIC;
private int sampleRate = 22050;
private int channel = AudioFormat.CHANNEL_CONFIGURATION_MONO;
private int encoding = AudioFormat.ENCODING_PCM_16BIT;
private int result = 0;
private int bufferSize;
private byte[] buffer;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Log.v("onCreate", "layout set, about to init audiorec obj");
text = (TextView)findViewById(R.id.TextView01);
bufferSize = AudioRecord.getMinBufferSize(sampleRate,channel,encoding);
buffer = new byte[bufferSize];
recorder = new AudioRecord(audioSource, sampleRate,channel,encoding,
AudioRecord.getMinBufferSize(sampleRate, channel,encoding));
Log.i("recorder obj state",""+recorder.getRecordingState());
}
public void onClickPlay(View v){
}
public void record(){
Log.i("inside record method", "******");
File path = Environment.getExternalStorageDirectory();
Log.v("file path", ""+path.getAbsolutePath());
File file = new File(path, "test.wav");
if(file.exists()){
file.delete();
}
path.mkdirs();
Log.v("file path", ""+file.getAbsolutePath());
try {
os = new FileOutputStream(file);
bos = new BufferedOutputStream(os);
dos = new DataOutputStream(bos);
} catch (Exception e1) {
e1.printStackTrace();
}
int bufferSize = AudioRecord.getMinBufferSize(sampleRate,channel,encoding);
byte[] buffer = new byte[bufferSize];
recorder.startRecording();
isRecording = true;
try{
while (isRecording){
result = recorder.read(buffer, 0, bufferSize);
for(int a=0; a<result;a++){
dos.write(buffer[a]);
if(!isRecording){
recorder.stop();
break;
}
}
}
dos.flush();
dos.close();
}catch(Exception e){
e.printStackTrace();
}
}// end of record method
public void onClickStop(View v){
Log.v("onClickStop", "stop clicked");
isRecording=false;
}
public void onClickReverse(View v){
Log.v("onClickReverse", "reverse clicked");
}
public void onClickRecord(View v){
Log.v("onClickRecourd", "record clicked, thread gona start");
text.setText("recording");
thread = new Thread(new Runnable() {
public void run() {
isRecording = true;
record();
}
});
thread.start();
isRecording = false;
}
}//end of class
Logcat
01-30 15:23:16.724: ERROR/AudioRecord(12817): Could not get audio input for record source 1 01-30 15:23:16.729:
ERROR/AudioRecord-JNI(12817): Error creating AudioRecord instance: initialization check failed. 01-30 15:23:16.729:
ERROR/AudioRecord-Java(12817): [ android.media.AudioRecord ] Error code
-20 when initializing native AudioRecord object. 01-30 15:23:16.729: INFO/recorder obj state(12817): 1 01-30 15:23:16.729:
WARN/dalvikvm(12817): threadid=13: thread exiting with uncaught exception (group=0x4001b180) 01-30 15:23:16.729:
ERROR/AndroidRuntime(12817): Uncaught handler: thread Thread-7 exiting due to uncaught exception 01-30 15:23:16.739:
ERROR/AndroidRuntime(12817): java.lang.IllegalStateException: startRecording() called on an uninitialized AudioRecord. 01-30 15:23:16.739:
ERROR/AndroidRuntime(12817): at android.media.AudioRecord.startRecording(AudioRecord.java:495) 01-30 15:23:16.739:
ERROR/AndroidRuntime(12817): at com.tecmark.recorder.record(recorder.java:114) 01-30 15:23:16.739:
ERROR/AndroidRuntime(12817): at com.tecmark.recorder$1.run(recorder.java:175) 01-30 15:23:16.739:
ERROR/AndroidRuntime(12817): at java.lang.Thread.run(Thread.java:1096)