MediaRecorder: start failed

Question

I have googled about it but didn't find any solution

I am recording incoming and outgoing calls

code works fine with outgoing call but gives exception on incoming call

    recorder = new MediaRecorder();

    File sdCard = Environment.getExternalStorageDirectory();
    File dir = new File(sdCard.getAbsolutePath() + "/OK");
    dir.mkdirs();

    recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
 recorder.setOutputFile(Environment.getExternalStorageDirectory().getAbsolutePath()+"/OK/"+"yes"+".3gpp");
    recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

    try {
       recorder.prepare();
       recorder.start();
    } catch (IllegalStateException e) {
         Log.d("illegal",e.toString());
    } catch (IOException e) {
         Log.d("io",e.toString());
   }

Logcat

02-23 01:43:08.346  11231-11231/com.example.myapps.acr **I/record﹕ start**
02-23 01:43:08.426  11231-11231/com.example.myapps.acr **E/MediaRecorder﹕ start failed: -38**
02-23 01:43:08.426  11231-11231/com.example.myapps.acr **D/illegal﹕ java.lang.IllegalStateException**

Please help why its not working on incoming calls..

score 1 · Accepted Answer · answered Feb 24 '14 at 11:48

1

recorder.prepare();
Thread.sleep(1000);
recorder.start();

For incoming call it was taking time to prepare.

Hold the prepare for 1 sec and everything is worked fine.

answered Feb 24 '14 at 11:48

Yogesh Lakhotia

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you are testing on which version ?? It won't work in lolipop and above – Yogesh Lakhotia Aug 06 '15 at 10:15
Yes, Lollipop. How can I make it work on Lollipop+ devices? – TheOnlyAnil Aug 06 '15 at 10:27
With Lollipop Android actively use voice cancellation to prevent audio from speaker going in to MIC. You need to enable loud speaker – Yogesh Lakhotia Aug 06 '15 at 10:29

MediaRecorder: start failed

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