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How to increase the sound of part of a video file
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stibi
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4. January 2008 @ 12:50 _ Link to this message    Send private message to this user   
I have on my hard disk a movie in the form of VOB file. I would like to cause part of it (in this case the beginning)to sound louder. Is or are there any program/s (as fare as possible not too complicated one/s)with which one can do it ?

Thanks in advance

stibi
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4. January 2008 @ 14:35 _ Link to this message    Send private message to this user   
This uses a number of programs, but comprises simple steps.
The Video and Audio are separated;the audio adjusted;the new audio and original video are rejoined to create a new file.


1 VOBEDIT- Demux VOB to m2v and ac3
2 PX3- Convert AC3 to WAV
3 Audacity- Load wav and adjust audio and output New WAV
4 FFMPEGGui- Convert New WAV to New AC3
5-MUXMAN- Mux m2v with New AC3 into New VOB (a New VOB folder with all the required files is created)



VOBEdit
http://www.digital-digest.com/dvd/downlo...obedit_254.html

Run VobEdit > 'Open', select VTS_01_1.VOB (the first large VOB of the title, the rest will come in at the same time).
'Demux' > select 'All Video and Audio'.
The files will be saved as an .m2v and an ac3.

px3 ac3 to wav
http://www.videohelp.com/tools/PX3_AC3_to_WAV

Load the ac3 and select an output name eg ac3.wav

Audacity
http://superb-east.dl.sourceforge.net/so...y-win-1.2.6.exe

Drag or load the wav onto the window.
Highlight the section to amplify, click 'Effects'.
Choose 'Amplify'
Check 'Allow Clipping' and set the slider up ~9db, check the level then OK.
Play the stream to verify that the sound is good.
Export the file as 'new.wav'

ffmpeggui
http://download2.videohelp.com/download/ffmpeggui03c.zip

Load new.wav and save as new.ac3

muxman
http://www.mpucoder.com/Muxman/versions.shtml

Load the video .m2v and the new audio new.ac3

Select an output folder.
stibi
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5. January 2008 @ 10:13 _ Link to this message    Send private message to this user   
Many many thanks for your prompt and very helpful answer.

I acted precisely as guided by you (except that instead of Audacity I used my Cool Edit program)and it worked perfectly.

Could You, please, tell me also how can one increase the volume of avi,mpeg,flv etc. ?

Thanks in advance
AfterDawn Addict
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5. January 2008 @ 13:16 _ Link to this message    Send private message to this user   
The basic steps would be the same for MPEG files, inasmuch as it is demuxed, adjusted and remuxed.

Run 'Rejig', 'File' Mode.
Select the MPEG file then demux both streams to M2V amd MP2 (MPA?)
Adjust/convert the audio.
Load new WAV and M2V into 'IMagoMPEG Muxer' and create new MPEG file.


Rejig Demux VOB/MPEG
http://www.afterdawn.com/software/video_...tools/rejig.cfm

IMagoMPEG Muxer M2V + MP2 -> MPEG
http://www.videohelp.com/tools/ImagoMPEG-Muxer

For AVI, use VirtualDub.
Load video, then ('File' 'Save wav'), then reload the new wav ('Audio' 'WAV Audio').
Note, you would have to select a compression for the new audio, else it is saved as a large, uncompressed PCM file.
Save the new video file without recompressing ('Video' 'Direct Stream Copy).

VirtualDub most recent stable
http://virtualdub.sourceforge.net/

XVid Codec
http://www.xvid.org/

Free DivX codec
http://www.divx.com/divx/windows/download/

Lame MP3 codec
http://users.tpg.com.au/mtam/install_lame.htm

As to FLV, I haven't tried, so cannot say.

Good luck.
stibi
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5. January 2008 @ 17:33 _ Link to this message    Send private message to this user   
You are great!
I will try it, though - judging from my first experience with your advise - I am convinced it will work.

Many thanks again

stibi
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stibi
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27. January 2008 @ 14:58 _ Link to this message    Send private message to this user   
Originally posted by attar:
The basic steps would be the same for MPEG files, inasmuch as it is demuxed, adjusted and remuxed.

Run 'Rejig', 'File' Mode.
Select the MPEG file then demux both streams to M2V amd MP2 (MPA?)
Adjust/convert the audio.
Load new WAV and M2V into 'IMagoMPEG Muxer' and create new MPEG file.


Rejig Demux VOB/MPEG
http://www.afterdawn.com/software/video_...tools/rejig.cfm

IMagoMPEG Muxer M2V + MP2 -> MPEG
http://www.videohelp.com/tools/ImagoMPEG-Muxer

For AVI, use VirtualDub.
Load video, then ('File' 'Save wav'), then reload the new wav ('Audio' 'WAV Audio').
Note, you would have to select a compression for the new audio, else it is saved as a large, uncompressed PCM file.
Save the new video file without recompressing ('Video' 'Direct Stream Copy).

VirtualDub most recent stable
http://virtualdub.sourceforge.net/

XVid Codec
http://www.xvid.org/

Free DivX codec
http://www.divx.com/divx/windows/download/

Lame MP3 codec
http://users.tpg.com.au/mtam/install_lame.htm

As to FLV, I haven't tried, so cannot say.

Good luck.
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