RuntimeException: start failed in AudioRecording

Question

Ham doing audio recording in my project. The problem is ham getting runtime exception in my project.

 12-02 14:58:47.145: E/AndroidRuntime(22802): FATAL EXCEPTION: main
12-02 14:58:47.145: E/AndroidRuntime(22802): java.lang.RuntimeException: start failed.
12-02 14:58:47.145: E/AndroidRuntime(22802):    at android.media.MediaRecorder.start(Native Method)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at com.android.audio.AudioRecordActivity.startRecording(AudioRecordActivity.java:80)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at com.android.audio.AudioRecordActivity.access$1(AudioRecordActivity.java:67)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at com.android.audio.AudioRecordActivity$3.onClick(AudioRecordActivity.java:138)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at android.view.View.performClick(View.java:3460)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at android.view.View$PerformClick.run(View.java:13955)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at android.os.Handler.handleCallback(Handler.java:605)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at android.os.Handler.dispatchMessage(Handler.java:92)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at android.os.Looper.loop(Looper.java:137)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at android.app.ActivityThread.main(ActivityThread.java:4340)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at java.lang.reflect.Method.invokeNative(Native Method)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at java.lang.reflect.Method.invoke(Method.java:511)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
12-02 14:58:47.145: E/AndroidRuntime(22802):    at dalvik.system.NativeStart.main(Native Method)

when I debug and I'm getting the error in this particular line of code:

recorder.start();

My source code is as follows

 package com.android.audio;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import org.apache.http.util.ByteArrayBuffer;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.ContentValues;
import android.content.DialogInterface;
import android.content.Intent;
import android.media.MediaRecorder;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.widget.Button;

public class AudioRecordActivity extends Activity
{
    private static final String AUDIO_RECORDER_FILE_EXT_3GP = ".3gp";
    private static final String AUDIO_RECORDER_FILE_EXT_MP4 = ".mp4";
    private static final String AUDIO_RECORDER_FOLDER = "AudioRecorder";
    File file;
    private MediaRecorder recorder = null;
    private int currentFormat = 0;
    private int output_formats[] = { MediaRecorder.OutputFormat.MPEG_4, MediaRecorder.OutputFormat.THREE_GPP };
    private String file_exts[] = { AUDIO_RECORDER_FILE_EXT_MP4, AUDIO_RECORDER_FILE_EXT_3GP }; 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    setButtonHandlers();
    enableButtons(false);
    setFormatButtonCaption();
}

    private void setButtonHandlers() {
            ((Button)findViewById(R.id.btnStart)).setOnClickListener(btnClick);
    ((Button)findViewById(R.id.btnStop)).setOnClickListener(btnClick);
    ((Button)findViewById(R.id.btnFormat)).setOnClickListener(btnClick);
    }

    private void enableButton(int id,boolean isEnable){
            ((Button)findViewById(id)).setEnabled(isEnable);
    }

    private void enableButtons(boolean isRecording) {
            enableButton(R.id.btnStart,!isRecording);
            enableButton(R.id.btnFormat,!isRecording);
            enableButton(R.id.btnStop,isRecording);
    }

    private void setFormatButtonCaption(){
            ((Button)findViewById(R.id.btnFormat)).setText(getString(R.string.audio_format) + " (" + file_exts[currentFormat] + ")");
    }

    private String getFilename(){

            String filepath = Environment.getExternalStorageDirectory().getPath();
            file = new File(filepath,AUDIO_RECORDER_FOLDER);

            if(!file.exists()){
                    file.mkdirs();
            }




            return (file.getAbsolutePath() + "/" + System.currentTimeMillis() + file_exts[currentFormat]);
    }


    private void startRecording(){
            recorder = new MediaRecorder();

            recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
            recorder.setOutputFormat(output_formats[currentFormat]);
            recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
            recorder.setOutputFile(getFilename());

            recorder.setOnErrorListener(errorListener);
            recorder.setOnInfoListener(infoListener);

            try {
                    recorder.prepare();
                    recorder.start();
            } catch (IllegalStateException e) {
                    e.printStackTrace();
            } catch (IOException e) {
                    e.printStackTrace();
            }
    }

    private void stopRecording(){
            if(null != recorder){
                    recorder.stop();
                    recorder.reset();
                    recorder.release();

                    recorder = null;
            }
    }

    private void displayFormatDialog(){
            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            String formats[] = {"MPEG 4", "3GPP"};

            builder.setTitle(getString(R.string.choose_format_title))
                       .setSingleChoiceItems(formats, currentFormat, new DialogInterface.OnClickListener() {

                            @Override
                            public void onClick(DialogInterface dialog, int which) {
                                    currentFormat = which;
                                    setFormatButtonCaption();

                                    dialog.dismiss();
                            }
                       })
                       .show();
    }

    private MediaRecorder.OnErrorListener errorListener = new MediaRecorder.OnErrorListener() {
            @Override
            public void onError(MediaRecorder mr, int what, int extra) {
                    AppLog.logString("Error: " + what + ", " + extra);
            }
    };

    private MediaRecorder.OnInfoListener infoListener = new MediaRecorder.OnInfoListener() {
            @Override
            public void onInfo(MediaRecorder mr, int what, int extra) {
                    AppLog.logString("Warning: " + what + ", " + extra);
            }
    };

private View.OnClickListener btnClick = new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                    switch(v.getId()){
                            case R.id.btnStart:{
                                    AppLog.logString("Start Recording");

                                    enableButtons(true);
                                    startRecording();

                                    break;
                            }
                            case R.id.btnStop:{
                                    AppLog.logString("Start Recording");

                                    enableButtons(false);
                                    stopRecording();

                                    break;
                            }
                            case R.id.btnFormat:{
                                    displayFormatDialog();

                                    break;
                            }
                    }
            }
    }; 


}

ya thanks i forgot about the permission. i added this permission now its working — pratibha, Dec 01 '11 at 12:10
illegal state exception arises not bcoz of permissions but due to the way u handle media player. Go through documentations on various methods like prepare,stop,start,release etc. This is the problem. — Andro Selva, Dec 02 '11 at 05:15
Please look at my answer here : http://stackoverflow.com/a/33482754/4700721 I think it will solve your problem. — Shalev Keren, Nov 02 '15 at 16:53

Tobbe · Answer 1 · 2011-12-02T07:19:33.030

7

As described in the android developer documentation you need to set the following permissions in your AndroidManifest.xml file:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />

If you set these up, it should not throw that exception.

Edit after comments: If you get a FileNotFound Exception on mRecorder.prepare();, I'd assume it's because the file you reference in mPlayer.setDataSource(mFileName); does not exist, or is initialized incorrectly. Perhaps if you try to log the filename string you can see if it looks like the way you intended.

edited Dec 02 '11 at 07:19

answered Dec 01 '11 at 12:11

Tobbe

1,825
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plz help me to find out what is the problem ham getting illegalstateexception even if i add permission – pratibha Dec 02 '11 at 04:49
mRecorder.prepare(); ham getting error here after debugging and got filenotfound exception – pratibha Dec 02 '11 at 04:55
why media recorder is not getting strated – pratibha Dec 02 '11 at 06:32
I've edited my answer. Please set the answer as accepted if it helps you! – Tobbe Dec 02 '11 at 07:19
now i debbuged and saw i have the file in the path i.e. in sdcard location but when it comes to mRecorder.start(); ham getting exception as 12-02 13:57:38.994: E/AndroidRuntime(20580): java.lang.RuntimeException: start failed. – pratibha Dec 02 '11 at 08:27
In response to your attempt to edit my answer, please edit your question instead, to help me and others answer it. Stack trace would be great. – Tobbe Dec 02 '11 at 08:44

score 1 · Answer 2 · answered Oct 19 '15 at 06:31

I was using:

<uses-permission android:name="ANDROID.PERMISSION.RECORD_AUDIO"/>
<uses-permission android:name="ANDROID.PERMISSION.WRITE_EXTERNAL_STORAGE"/>

and it showed me error. Then I changed it to:

<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

Looks stupid, but surprisingly it worked for me.

score 0 · Answer 3 · edited May 23 '12 at 09:24

0

use these permissions:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />

and you may get the solution, you have to add WRITE_EXTERNAL_STORAGE permission.

edited May 23 '12 at 09:24

bool.dev

17,508
5
69
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answered May 19 '12 at 14:04

sharma_kunal

2,152
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sharma_kunal · Answer 4 · 2012-06-22T04:44:32.993

VideoPlayerActivity extends Activity {
    /** Called when the activity is first created. */

    MediaPlayer mp;

    File mPath;
    String datavideo = "/sdcard/musicfiles.mp4";
    String datamusic = "/sdcard/musicfileone.mp3";

    String urlString = "http://192.168.1.92/Stream/song.mp3";

    String urlVodeo = "http://192.168.1.92/Stream/Wildlife.mp4";

    Button btnVideo, btnAudio, btnViewVideo;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        btnVideo = (Button) findViewById(R.id.btnStoreVideo);
        btnAudio = (Button) findViewById(R.id.btnstoreAudio);
        btnViewVideo = (Button) findViewById(R.id.btnViewVideo);
        btnVideo.setOnClickListener(new OnClickListener() {

            public void onClick(View arg0) {
                // TODO Auto-generated method stub

                try {

                    setDataSourc(datavideo);

                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }

            }
        });
        btnAudio.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                // TODO Auto-generated method stub
                try {

                    setDataSource(datamusic);

                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }

            }
        });

        btnViewVideo.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                // TODO Auto-generated method stub

                Intent intent = new Intent(VideoPlayerActivity.this,
                        PlayingVideo.class);
                startActivity(intent);
            }
        });
    }

    private void setDataSource(String path) throws IOException {

        // HttpClient client = new DefaultHttpClient();
        // HttpPost post = new HttpPost(urlString);
        // HttpResponse response = client.execute(post);
        // HttpEntity cn = response.getEntity();

        URL url = new URL(urlString);
        URLConnection cn = url.openConnection();
        cn.connect();

        InputStream stream = cn.getInputStream();// getContent();
        if (stream == null) {
            throw new RuntimeException("stream is null");
        }
        mPath = new File(datamusic);
        mPath.createNewFile();
        FileOutputStream out = new FileOutputStream(mPath);
        byte buf[] = new byte[128];
        do {
            int numRead = stream.read(buf);
            if (numRead <= 0) {
                break;
            }
            out.write(buf, 0, numRead);
        } while (true);
        mp = new MediaPlayer();
        mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
        try {
            mp.setDataSource(path);
            mp.prepare();
            mp.start();

        } catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
        }
        try {
            stream.close();
        } catch (Exception ex) {
            String sDummy = ex.toString();
            System.out.println("hello dummy" + sDummy);

        }
    }

    private void setDataSourc(String path) throws IOException {

        // HttpClient client = new DefaultHttpClient();
        // HttpPost post = new HttpPost(urlString);
        // HttpResponse response = client.execute(post);
        // HttpEntity cn = response.getEntity();

        URL url = new URL(urlVodeo);
        URLConnection cn = url.openConnection();
        cn.connect();

        InputStream stream = cn.getInputStream();// getContent();
        if (stream == null) {
            throw new RuntimeException("stream is null");
        }
        mPath = new File(datavideo);
        mPath.createNewFile();
        FileOutputStream out = new FileOutputStream(mPath);
        byte buf[] = new byte[128];
        do {
            int numRead = stream.read(buf);
            if (numRead <= 0) {
                break;
            }
            out.write(buf, 0, numRead);
        } while (true);
        // mp = new MediaPlayer();
        // mp.setAudioStreamType(AudioManager.STREAM_MUSIC);
        try {
            // mp.setDataSource(path);
            // mp.prepare();
            // mp.start();

        } catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
        }
        try {
            stream.close();
        } catch (Exception ex) {
            String sDummy = ex.toString();
            System.out.println("hello dummy" + sDummy);

        }
    }

}

I had used the above code in my application to solve the problem,may this help you.

RuntimeException: start failed in AudioRecording

4 Answers4