Problems with DTS and AC3

[marinovedder]

I am trying to do this: i downloaded a mpg video from a concert. i am trying to demux the audio from the video and make it a dts compliant file so i can listen to it in my home theater not only in the frontal speakers, but in the whole set of speakers.

the problem is this: i had to convert the video to avi using drdivx because if i opened it with virtualdub i got some errors with some improper joining. after the mpg was encoded to avi, i demuxed the wav from it. then using Gold Wave i created the six files needed to make a dts wav file.

then using surcode i wanted to encode it to a dts wav file. if i listen to the six files individually they sound great... if i listened them with surcode as a "source file" it was great too, but.. if i listened to how the file was going to be after encoded (destination) it sounded really weird, like wind blowing or something... i encoded it anyways then i used ffmgui to make it an ac3 file and sound was weird too....

what con i do?? how am i suppose to make the video sound good in a home theater?? was the process i did good?

[BJ_M]

surcode can help you with dts encoding as they have excellent customeer support .. i forwarded your question to them ..

but basicly -- if you started with 2ch audio -- you are really gaining nothing making 5.1 unless you really really know what your doing (and even not always then)

[marinovedder]

actually i dont know what im doing but i found a guide that actually is very convincing... i just want to be able to listen to the video in my home theater using all of my speakers, not only the frontal one

[BJ_M]

then use your reciever and put it in one of the fake surround modes -- it will do a better job

[Gazorgan]

What was the demuxed file? MP2 or AC5.1? Only if it was AC5.1 do you even remotely have a chance to make a DTS file, and then there's absolutely no point in converting it (unless your home theater only plays DTS and not AC5.1). A mp2 file is stereo, not multi channel (although it could be dolby surround, but unlikely if it's a homebrew concert video).

[marinovedder]

it was a mp2 file... but my question would be.... if i convert that wav to ac3.... will i get it to sound in all the speakers?? or do i have to use dts as an obligation first... and my first method was actually pretty close from working because i could separate all the sound and make the 6 files for the 5.1 dts.... the problem is that when i encoded them the wav file didnt sound right.... just a blurry sound....

[Gazorgan]

It's a 2 channel wav, not 6. There aren't any 6 channel MP2's. There's nothing to encode to AC5.1 or DTS. You can encode it to AC2.0 .

It could be a Dolby Surround Signal, in which case you could have 4 channels. You can convert that to 6 channels easily(LF is easy, and center is when A and R match). The downside is it's still really only 2 channels at a time, it won't ever sound 'good' on a home theater.

[marinovedder]

then i would like you to see the guide i used to do the encoding... because i dont understand... i am actually making six separate wav files then joining them to one single wav with properties of a dts file...

i just dont know if i am able to put a link to another site from here.... i will put it.... so u can read it and lemme know what happens

http://forum.digital-digest.com/archive/topic/21454-1.html