how to increase low audio volume of .mkv files

Download two files to extract audio from a video and again merge audio after increasing its volume by an audio editor (both not required to install but work together)

To merge download "mkvtoolnix" file from here and extract it to a folder in my case it is mkvtoolnix : http://www.bunkus.org/videotools/mkvtoolnix/downloads.html#windows

Download "MKVExtractGUI2" file from here and extract it and keep this file in mkvtoolnix folder:
http://sourceforge.net/projects/mkvextractgui-2/

Note : keep "MKVExtractGUI2" file to "mkvtoolnix" folder.

Now follow these steps from "mkvtoolnix" folder :

To extract:
open "MKVExtractGUI2.exe" file. Selct input file to extract,
set output location for extracted file. Select tracks to extract.
Click on extract button.

To merge:
After increasing volume of audio files extracted previously,
open "mmg.exe" file (Don't care about any error message on open,if any).
Add files in input files box (Original video + edited audio file).
Select file in below box reqiured to merge.
Define their appearence for selection during playback using up/down button.

In general track option Tab:
give name in track name if you want any.
select language of audio or for any file.

In global tab :
Defined the file/segment title which appear on the screen initially (give movie name or your name) with movie during playback of file.(not required, depends on you).
Now click start muxing button. Answered Apr, 20 2011

bvcsoft mp4 video converter can increase video volume ,and convert ,normalize all your favarile videos,musics to mp4 format with the same sound level.very great. Answered Apr, 27 2011

1, Click the File>Open in main menu.

2, Refer to time scale in the foot of the waveform, select a start time and click on (You should better click on the near middle of two channels in waveform, because whichever you click the above channel or underneath, you just get a single time scale what you clicked.).

3, Drag you pointer to a time scale what you want to finished. If you can not get a time or sample scale exactly, you can input the number of time or sample in Edit Box of “Selection” on the right corner. If “Selection” can not appear on the upper right corner, you can get it from View > Panels> Selection in main bar.

3, Click Transform>Amply in the “Effect” panel. Next click “Apply”.

read more:www.mp3audioeditor.com/editing/increase-or-decrease-the-volume.htm Answered Jul, 24 2011

Drag and drop the video file in format factory. free software: http://format-factory.en.softonic.com/download select a format to convert select settings under auido stream: volume : seelct any postive value select ok click on start converting click on view output file or open output folder.

Answered Oct, 28 2011