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Q: audio conversion ( Answered 5 out of 5 stars,   1 Comment )
Question  
Subject: audio conversion
Category: Computers
Asked by: funkydude-ga
List Price: $10.00
Posted: 29 Jan 2003 18:22 PST
Expires: 28 Feb 2003 18:22 PST
Question ID: 155049
what software do i use to convert an mpeg2 layer audio file into a wave
file allowing me to re EQ the soundtrack prior to multiplexing a new av
sequence,many thanks george

Request for Question Clarification by sycophant-ga on 30 Jan 2003 01:43 PST
Hi Funkydude, 

I am not entirely clear on what it is you are trying to do. If it is
simply convert a MPEG Layer 2 audio file to a WAV, so that you can
import it into another piece of software for EQ changes, then I would
suggest you can use Winamp by selecting the Diskwriter Plugin as the
output plugin (in Preferences).

Let me know if this is what you are trying, or if it is something
else.

Regards,
sycophant-ga

Request for Question Clarification by kriswrite-ga on 30 Jan 2003 12:09 PST
Are you seeking software that will allow you to convert *and* EQ the
file? Or do you simply want software for file conversion?

kriswrite
Answer  
Subject: Re: audio conversion
Answered By: funkywizard-ga on 30 Jan 2003 13:44 PST
Rated:5 out of 5 stars
 
The program I would look at first is known as Tmpeg, which can
seperate the audio in an mpeg2 file from the video, and perform a
variety of edits and conversions on either audio or video. You can get
tmpeg here: http://www.downseek.com/download/21411.asp

The second program that would be of use after converting the audio to
wav is a program called virtualdub, which should allow you to edit the
wav file's equalization.

Virtual Dub can be found here:
http://prdownloads.sourceforge.net/virtualdub/VirtualDub-1_4_13.zip

The vcdhelp.com conversions page [ http://www.vcdhelp.com/convert ]
may be of some use to you as well.

Also, if you are ever in need of guidance for creating, editing,
capturing, encoding, or any other video task, the first place I always
look is http://vcdhelp.com, which has proved invaluable to me.

Search strategy:
://www.google.com/search?num=20&hl=en&lr=lang_en&ie=ISO-8859-1&newwindow=1&safe=off&q=tmpeg

If you need any additional information, or anything is unclear, please
ask for a clarification and I will be happy to assist further.

Request for Answer Clarification by funkydude-ga on 30 Jan 2003 15:24 PST
thanks for the help up to date but i require a more in depth line
right now ftao of funky wizard,hi mate,here goes, i am currently
trying to separate a mpeg vcd etc into its two parts, video and audio
and as you said i allready use tmpge which splits it but at this point
the audio is still in a mpeg layer11 format which is not recognised by
wavelab etc so as to convert the audio into a wavefile,if i could do
this i could re-eq the poor audio track then as long as the resultant
audio track is still in a wave format it is easy to remultiplex it
with the original video track and phase shift the audio track to
restore good lip sync hence the need for a program whick converts mpeg
audio layer11 into wave or even a mp3 format would also be useful,hope
you can help cheers george.

Request for Answer Clarification by funkydude-ga on 30 Jan 2003 15:29 PST
hi there, yes i just need software that will convert an mpeg layer11
audio track[the result of using tmpge which splits vcd's into separate
video and audio files]into a wave file,i could then use wavelab or
soundforge to re eq the sound then multiplex the improved soundtrack
to the original video track again using tmpge which also allows you to
phase shift the audio to correct the lip sync ,hope this makes sense
cheers george.

Clarification of Answer by funkywizard-ga on 31 Jan 2003 16:55 PST
I will get on this right away. Expect an answer today.

Clarification of Answer by funkywizard-ga on 31 Jan 2003 17:12 PST
Although I assumed that one might use tmpeg for demultiplexing the
audio and video and then using virtual dub to convert to wav, I was
surprised to find a way to do it all in tmpeg that was not at first
obvious to me that I feel I should explain.

Load tmpeg as usual, click browse under video, and select the video
whose audio should be converted to wav. Then click the file menu,
click output to file, then click wav file. though I thought the
process would be harder, I tested this and it should work fine for any
file that tmpeg can properly read in the first place.

Hope this helps!
funkydude-ga rated this answer:5 out of 5 stars and gave an additional tip of: $5.00
many many thanx to the "funkywizard"i have just used tmpge as you
outlined and it works perfect,i was seconds away from buying Q-DESIGN
ACM CODEC but you have saved the day,what a guy,cheers George from
Scotland UK.

Comments  
Subject: Re: audio conversion
From: alan_dershowitz-ga on 30 Jan 2003 09:29 PST
 
I've done something like this using a program DVD2AVI.  It takes an
unencrypted DVD VOB file and splits off the video into an AVI, and the
audio into a WAV.  Maybe thats what you are looking for.

I've never tried it on a straight mpeg2 file (althought the website
says you can), so try it before assuming I'm correct.

http://arbor.ee.ntu.edu.tw/~jackei/dvd2avi/

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