CODEWITHSUNDEEP
androidaudio-recording
John Bajer
John Bajer

Reputation: 61

How to automatically limit Android audio recording length?

I've got this working code. I need it to record only for a limited time without any click from the user. How do I do this?

    MediaRecorder recorder = new MediaRecorder();
File outputFile = new File(file);
recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(outputFile.getAbsolutePath());
try {
    recorder.prepare();
} catch (IllegalStateException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
recorder.start();
recorder.setMaxDuration(60000);
// stop
recorder.stop();
recorder.reset(); 
recorder.release();

Upvotes: 6

Views: 6095

Answers (4)

Ilya Gazman
Ilya Gazman

Reputation: 32221

Use setMaxDuration and setOnInfoListener to get a callback for notifing the UI.

recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(outputFile.getAbsolutePath());

recorder.setMaxDuration(60000);
recorder.prepare();
recorder.setOnInfoListener(new MediaRecorder.OnInfoListener() {
    @Override
    public void onInfo(MediaRecorder mr, int what, int extra) {
        if(what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED){
            Toast.makeText(context, "Recording stops. Limit reached", Toast.LENGTH_LONG).show();
        }
    }
});
recorder.start();

Upvotes: 3

wolfliu
wolfliu

Reputation: 61

this will done well:(use the setMaxDuration before prepare/start function )

recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
recorder.setOutputFile(outputFile.getAbsolutePath());

recorder.setMaxDuration(60000);
recorder.prepare();
recorder.start();

Upvotes: 6

Andro Selva
Andro Selva

Reputation: 54322

This might be little a nasty approach. But this is what I did,

once you start your mediaPlayer with mediaplayer.start(), start a Thread parallel to it like this,

 thread passMusic=new Thread(new Runnable() {

        public void run() {
            try {

                Thread.sleep(60000);
                mediaplayer.pause();
                mediaplayer.stop();
                mediaplayer.release();
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }


        }
    });passMusic.start();

And now you can use handlers to update your UI or something.

Upvotes: 0

ByteMe
ByteMe

Reputation: 1476

You should put your recorder.stop(), etc. calls in a timer

Here is a link to instructions on how to use a timer task http://developer.android.com/resources/articles/timed-ui-updates.html

Timer timer = new Timer();
timer.schedule(new FinishRecordingTask(), 100, 200);

just add this after you have called recorder.start()

Upvotes: 0

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