Do SVCD or VCD play surround sound and center channel???

[davidborden]

I was wondering if I rip a DVD to SVCD or VCD when I play it will it play out of the center channel, and surround channels as well as front channels?

[DiViNeLeFT]

by just using basic settings you will get front and rear channels... sorry, no center. i have heard things about ways to do it so that the center channel is a mix of all the channels... and there is also 6 channel mpeg audio for SVCD if your hardware supports it... but i guess the chances of that are slim to none!

what i do is just enable the virtual 5.1 in my turtle beach santa cruz control panel... it creates a mix of all the channels for the center channel and really sounds great doing it... for anyone haveing problems with the SB live! 5.1 i highly recomend the santa cruz. i had a live! 5.1 and since i upgraded i havnt had a sound problem.

[thxkid]

Are you wanting to know about computer surround sound or a home unit, All VCD's and SVCD's I have recorded(I don't rip) Plays the dolby Surround sound back great as left-center-right-rear-sub.

[vitualis]

If your VCDs have standard Dolby Surround encoded (i.e., if you used DVD2AVI or the FlaskMPEG method), then on a standard Dolby Pro Logic decoder system, you will get:

Left, Right, Centre and Surround channels.

Regards.

[species8472]

I have created a test svcd that used the AC3 5.1 digital stream on a test rip of a dvd. It worked fine. I got the blue bar on my Sony 5.1 dolby digital receiver and it sounded excellant. I do not normally use the AC3 stream since it just takes up too much bandwidth and I like to get at least 50 minutes on a svcd.

[vitualis]

!!??

1. Did you actually make a SVCD and NOT a miniDVD?
2. Are you actually getting 5.1 discrete channels or just Dolby Pro Logic decoded audio?
3. What did you do exactly (method)?

Regards.

[species8472]

SVCD can use mpg2 multichannel 5.1 like in a dvd. The way I did it was use Smartripper to rip the cd. Then use Flask and select the 5.1 audio track (requires experimenting to get the right track). Then used the LSX Mpg encoder plugin in Flask to encode the mpg2. This will use the same AC3 5.1 stream that the dvd uses. It has been awhile since I did this.

[vitualis]

Okay, this makes sense now. You are mistaken on several points:

1. SVCD can use MPEG 5.1 multichannel (like some, mainly European, DVDs) but few players support this. 5.1 audio on a DVD is usually either in Dolby Digital (AC3) or DTS. SVCD does not support AC3 or DTS.

2. If you used FlaskMPEG, then you definitely do not have discrete 5.1 audio. You only have Dolby Surround encoded stereo. This can be decoded to give an additional centre and surround channel if you have a Dolby Pro Logic decoder.

FlaskMPEG will automatically downmix an AC3 5.1 audio stream into a Dolby Surround compatible stereo stream.

In summary, you do not have 5.1 audio on your S/VCD. You only have Dolby Surround encoded stereo.

Regards.

[species8472]

Hmmm. It has been a long time. But according to this page: http://www.uwasa.fi/~f76998/video/svcd/overview/ multichannel 5.1 is possible in SVCD. Also, Flask can output dolby digital 5.1 to a separate file. See this page: http://www.flaskmpeg.net/docs/readme.html audio tab-direct stream copy. As I said, it has been along time since I have done this. I may have used another program to multiplex the resulting mpg file.

_________________
Anya rules!

<font size=-1>[ This Message was edited by: species8472 on 2001-09-18 23:58:01 ]</font>

[adam]

5.1 encoded multichannel mpeg audio is really only a theoretical function of svcd. Seriously their is very little chance that you will ever put together a combo of hardware that actually supports it. Even hardware that says it supports multichannel mpeg audio still doesnt work for svcds only for dvds.

Also, unless you created the audio on a linux based computer there is no way it is multichannel mpeg audio. I don't think anyone has come across a way to do the compiling of the channels on a windows based pc yet.

You could mux an ac3 stream with 5.1 into your video stream and make an xsvcd but I doubt there would be even a single dvd player that could play it, even ones that are minidvd compatible.