Mediarecorder Ioexception: Prepare Failed

I want to use MediaRecorder to record voice, my code is: public void record(View v) { Log.d(TAG, 'record'); this.mediaRecorder.setAudioChannels(1); this.mediaRecor

Solution 1:

This is a big problem but has a very small solution

In most cases, the filename that we get from this.file.getAbsolutePath() contains file:/// as a prefix

    ////////////////////////////////////////////////* INCORRECT CODE */
    this.mediaRecorder.setOutputFile(this.file.getAbsolutePath());
    /*the above line sets a file url beginning with a "file:///"
    //however, since this setOutputFile requires us to send a
    //string referring to the uri, we will have to get rid of the
    //"file:///"and simply write the uri */
    ////////////////////////////////////////////////* CORRECTED CODE BELOW */
    this.mediaRecorder.setOutputFile(this.file.getAbsolutePath().substring(8));
    /*the above line of code extracts the string uri eliminating
    // file:/// */

Hope you find this answer helpful

Solution 2:

First at all you code looks fine. Have you added the required permissions to your manifest file?

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

If yes, then try replacing:

this.mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);

by

this.mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);

Don't forget to check if the path of your video file is correct.

Solution 3:

This Exception will be raised . if any of the following things failed:

file not found: Ensure that output file location that yu have specified is existing, otherwise it will throw you filenotfoundexception

Write Permission: You must specify Write permission in your manifest file.

Record permission : specify Record permission in your manifest file.

you can use this..

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

Still you get error.. try display the error. Like this

try{
        mRecorder.prepare();

    } catch (IOException e) {
        Log.e(LOG_TAG, "prepare() failed");
       System.out.println(""+e);    //to display the error
    }

mRecorder.start();

Solution 4:

I deleted

this.mediaRecorder.setAudioEncodingBitRate(16);

at method 2 and now it's working.

Solution 5:

For devices targeting version >= 10+ , you need to use MediaStore api, in my case file could not be found because the file is out of my app's scoped storage.