Multiplexing DTS to avi

[Elian]

Hi,
I have tried to multiplex DTS-sound (file is an *.ac3) to divx-avi, but it´s not working.
Virtual Dub says that my audio file has a bitrate of 32kb/s, but playing it with powerdvd it has 732... the muxed avi does not play any sound, and the file is much too small for having a real dts sound... (original .ac3 has nearly 400mb, the multiplexed avi is only 20 mb bigger than the avi without sound...)
I wanted to have a dts-audio because in my opinion dts is a better sound than dolby digital - my hardware supports both, so i want to try it with dts.

Can anyone help me?

[DJ Bobo]

1) forget about DTS
2) forget about DTS
3) forget about DTS

I don't understand those people who want to get DTS on a DivX, the bitrate of DTS is soooo huge (768 or 1536kbps!!!!!), are you planning on doing 4 CD rips or what?????????????

You want DTS? get the DVD!
And then, I can't hear the difference between Dolby Digital and DTS, you've gotta be kidding yourself, DTS is a fool standard!

stay on the ground man!

PS: to multiplex AC3 (AC3 is dolby digital!) with your avi, you need NanDub, not VirtualDub!

[Zhnujm]

as far as i know there is no tool wich can multiplex a dts file with an avi. and even when there is no way for playing it.
maybe in some time...

[ChristianHJW]

DTS in AC3 ? Are you sure ? Should be normal Dolby Surround ( Dolby Digital ) in an AC3, at least if bitrate is 384 or 448 kbps.

[Elian]

Hi all,
thank you for your answers

@bobotns: Of course you can´t hear a difference using cheap hardware like a surround set from creative; with excellent hardware you do hear a difference at the bigger bitrate. And a DTS-Divx does match to 3 cds. By the way I don´t mind changing CDs or having them in several Roms.
THe prog I use to multiplex my DolbyDigital-ac3s with the movies is DVDReaper, and it uses normal Virtual Dub to multiplex. Nandub is not neccesary.

But if nobody knows a prog to multiplex (and if not supported by usual soft to play avi) I will have to take Dolby instead of DTS.
For a longer view DTS will die, because it is not loger supported by most of the cinemas across europe - and I think US is the same...

Regards,
Elian

[DJ Bobo]

@ Elian
Well, if DTS is going to die (I agree!), don't bother yourself with an outdated standard...
And just to say it, I don't have a cheap creative system, I have a SONY system!

And according to your first post, the ac3-file is 400MB.
I'm pretty sure that's Dolby Digital and not DTS!

Let's say your film is 2 hours and the bitrate is 448kbps

448kbps = 54,7KB/s

54,7 x 60 x 120 = 384 MB ... well your film may be a little longer but you see, this is NOT DTS, DTS will be 2 or 4 times bigger because of its dinosaur (and wasted!) bitrate!

And you may also consider using NanDub to multiplex the sound, it works garanteed with it, and you'll get a working AVI!

[Taric25]

I disagree that DTS will die because it allows for 6.1 which Dolby Digital does not.

[DJ Bobo]

@ Taric25
Dolby Digital also allows 6.1, it's called Dolby Digital EX

[Kandor]

Actually the dolby digital ex is a phantom channel added like the old sorround channels of prologic so it is not descreet and it is not full range.
so dts 6.1 sound a lot better than dolby digital ex.
and about the sound quality. DTS has alot better sound when you have a decoder than can handle it right. Try a music dvd and you will hear a big diffrence or Gladiator. the sound is much smoother and more musical than the ac3 track.
and more and more dvds are coming out with dts and about the theater there is actually dts in most of the theaters not dolby digital.
most movies on the theaters are in dts.



//Kandor

[ChristianHJW]

Vorbis is the future ... 255 channels :D

[Elian]

@taric25: sorry that I can´t tell you whrer I read this, but it is fact: DTS will only be supported by cinemasin 2002, then its dead. Not only caused by the very high bitrates, but caused by the buggy procedures in playing a DTS movie in the cinema. As the DTS sound is separated by the movie on a CD in a simple 486 box, the box gets a timing signal from the movie. This timing signal is used to synch the sound to the movie. The whole system is very buggy; timing signals come not correct or not, and the sound goes more and more unsych... often the sound has to be synched "by hand". Thats not a kind of perfect processing. As the Dolby Standards do not have such bugs, this fight between Dolby and the Spielberg Company goes to Dolby...

@bobotns: my movie ist only about 90 min., the dts-ac3 has 432MB and the DolbyDigital 5.1-ac3 has 260.

For a normal home-cinema-soundsystem the question about Dolby or DTS EX is not actual - I think hardware for these standards is very too expensive. My question was because I have a Dolby Digital 5.1 and DTS playing receiver. I think the standard with 6.1 speakers will not become a real standard - the next step is 7.1.

Regards
Elian

[DJ Bobo]

@ Elian
Well, that's a new one, DTS named ac3... well, if you say so, it's gonna be so. I think, it's a bug in the software you used to extract the DTS track, giving an ac3 extension to a dts-file, since AC3 is definitely Dolby Digital.

About 6.1 and 7.1, this is all crazy, where are we going people? it's hard enough to find place for 6 speakers, where should I put 2 more speakers? over my head may be?! Well I think the industry is beginning to exagerate, I find 6 speakers are enough (well, I live in europe, I'm pretty sure, americans has another way of life, bigger house, bigger car... more speakers?! ¬.¬)

[Elian]

@bobotns: The proggie is used to extract the dts from vob is ac3tool from blacksunsoft. It is included in dvdreaper.
But you are right... the place for 5 speakers and subwoofer is big enough... no need to have two more speakers in a usual european room... but the american way of life with bigger house... and 7 speakers sounds really good...
Elian

[MaTTeR]

@bobotns & elian

You obviously are trying to hear the DTS difference on a crapola SoundBlaster and not on a home theater. Anyone that's ever compared a DTS track to a DD5.1 on a true home theater will tell you they hear a distinct difference depending on which DVD it is. Please don't discount a technology that your unfamiliar with or reading rumors about it's demise;)

I do agree with you that DTS might be overkill on a DivX. If you truly want to hear the best sounding DTS DVD go out and find PitchBlack. This movie IMO should be considered reference quality for DTS and perhaps PQ(picture quality).

EDIT- DTS is not dying here in the states I assure you. More and more titles are coming out all the time.

[tenebrenz]

With all this talk of DTS, 6.1, 7.1 & 255 channel ogg files I think I'm gonna have too book myslf into some genetic cloning lab and get myself some extra ears, so I can hear the full quality of the sound. I've only got 2 (two) of them at the moment :(

[Taric25]

Well said. I have don't have 6.1 spekers, but I have a virtual 6.1 matrix using 5.1 speakers and I can still hear a great differance in surround sound between Dolby Digital 5.1 EX vs DTS 6.1. The insturments and arrows and horses and fire are all in the correct sounding place in DTS, but I have trouble placing them when I watch with Dolby Digital.

However, DTS is overkill for DivX. At most, I would use a multichannel MP3. Well, if I could create one. :)

[Mikele]

@tenebrenz:
Ears are a very complex acoustical device. Even though there's only two of them, they're enough to let you know almost exactly where the sounds are coming from. So, two speakers are without a doubt not enough for our ears, we need more, and the more the better :)

[Taric25]

I was thinking today about the future of surround sound and how many speakers it would tke to give us an impression or real sound. At first, a 27 speaker system came to mind (9 on the ceiling, 9 on the floor, and 9 in between [yes, the speaker in the middle would float]), yet later I thought about a floating middle speaker, and Erueka! What if the speakers MOVED!

Think about it this way: if speakers were ultra-small, they could move without you seeing them. In a suspenceful scene in a movie, the speakers would sneak up behind you and blast at the climax to scare you to death :devil: :p . Moving speakers (I mean ones that fly) would DEFINATELY be more helpful (I think) than 255 channel surround sound.

[DSPguru]

Originally posted by MaTTeR
If you truly want to hear the best sounding DTS DVD go out and find PitchBlack. This movie IMO should be considered reference quality for DTS and perhaps PQ(picture quality).
if you really wanna hear the difference, purchase this (http://www.blackstar.co.uk/video/item/7000000052955) and toggle between the DD5.1 to the DTS mode.

this is really the BEST dts dvd i've ever heard.
and i've heard alot :D

[ChristianHJW]

Originally posted by Taric25 Moving speakers (I mean ones that fly) would DEFINATELY be more helpful (I think) than 255 channel surround sound. [/B]

The 255 channels in Vorbis are not for surround sound. Read here to get a basic idea what this can be good for :

http://www.powerdivx.com/phpbb2/viewtopic.php?t=162

In short : we can have multiple languages in one audio stream, leading to a big decrease of bitrate because the channel coupling feature will only encode the difference between the individual language files ( the speach ), all the other 'sound' is normally the same on all tracks and so there is no nedd to store that 3 times for 3 different languages ..... Vorbis is the future of DivX in terms of audio, believe me .....