How to convert dual audio movies to single audio without losing it's quality

As we all know that almost all movies we download contains dual audio. But like to watch movies in our mother language. So today I'm going to tell how you can convert dual audio movies into single audio without losing it's quality. 

Follow my steps :

1.  First of all download this software by clicking here and open it.
2.  Now click on " Add  " to put your Desired Video to be convert.

3.  Now Select any Movies that has Dual Audio.
4.  In my case I select The Avengers Dual Audio Movie

5.  Now you see, that movies has Dual Audio.
6.  Now I need Only Hindi,then I untick below English audio.

7.  Now next step is to Add Output Target for that file.
8.  You can't use same file-name in that Directory.
9.  so you have to rename it as Movie1 or place any character in that file-name.

10.  Now Step is to Click on " Start Muxing ".
11.  Now Wait Until That process should Completes. 

12.  Now go folder where you have save your movie and you are ready to watch it.