Dolby 5.1 to DTS ?? (is't possible?)

[Glock]

Can someone help me?

Is't possible to authoring a original Dolby 5.1 audio (from a origianal DVD) to a new DTS audio ?

Are they any (free) DVD audio Authoring software?


Thanks,


-Glock-

[adam]

I don't think there are any commercial DTS encoders, but why would you want to do this anyway? The first rule of encoding is that quality is limited by your source. No matter what you convert a DD source to it can never be higher quality than DD. DD and DTS are just different audio standards. Any benefits that DTS conceivably might have would only be present if using a master audio source.

If you converted DD to DTS all you would do would be to make your DVD less compatible with existing audio receivers.

[BJ_M]

adam is right -- to convert you would have to convert first to wav and then encode to DTS (surcode and dts make encoders) ..

because of the conversions the quality would be less then the DD you started with .

[Glock]

Thanks,

But DTS audio is better than the normal Dolby 5.1 ?
Is there any software u can buy it, to make the DTS?


- Glcok -

[Donny661]

DTS is normally better than DD if both the DD and DTS have the same high quality source. But, if you want to make DTS from DD you'll just loose quality. Both DD and DTS are lossy compression (if you don't know what that is look at the glossary). You can compare it to mp3 and regular cd audio (exept cd audio isn't compressed). You can buy a cd then rip it to your hard drive as mp3. You'll loose quality in that process. Then when you decide to put that mp3 on another audio cd you won't be able to get the quality you lost. Think about where you would gain the quality. It doesn't appear out of thin air when you want it back.

[BJ_M]

yes you can buy a DTS encoder -- the cheapest is $1995

http://www.minnetonkaaudio.com/Prices_3.htm

[keithsebastian]

Also, DTS occupies more space and hence you might have to compromise
on video quality.

[Cornucopia]

Think of it this way:

If you had uncompressed linear PCM audio...that would be 100% quality.

If you encode DTS from this PCM source, you'll get 75-95% of the quality. Average might be 85% for the sake of example.

If you encode DD (whether 2.0, 5.1 or whatever) from this same PCM source, you'll get 65%-92% of the quality. (These figures are all just to give a better understanding, don't take them literally). You could be averaging 75% here.

So what you're wanting to do is extract the DD source (75%) and re-encode that to get a DTS. This will give you something that is 85% of 75%, or 63.75% of the original source.
So you're better off leaving it as DD. At least then it's 75%.

This rule also holds true when dealing with video sources folks...

HTH,
Scott

[chazzie]

True words have been spoken my friends!

I'd definatly stick with DD 5.1 audio for homeburned DVD's, there's no use in occupying more space for the sake of DTS on your own productions (and absolutley not conversions from DTS). Tests have also revealed that DD5.1 audio in many cases are better than the DTS equivilant. The only noticiable diffrence you'll hear from a DTS and a DD soundtrack is that the DTS track might be a bit louder (volumewise), and thus, fooling you that the quality is better.

The best sound in quality -- Linear PCM, no questions about it! I've bought two Springsteen DVD's and they contain both DD 5.1 and PCM audio tracks. This is of course music DVD's, and there is LPCM the best, no doubt, but the problem in feature films is that LPCM only supports 2 channels (Stereo).

Chazzie

[txpharoah]

For most homemade work, even 5.1 is a waste. If you don't have the source, just stick with stereo. Dolby 2/0 is just fine. If you really need that surround feeling, buy a good recevier that can emulate it, and don't work so much with the audio files. In the end it's just not worth the time and effort.

[sir_max]

There is no difference between DTS and Dolby Digital...What they do is they take DD and change some layers accordingly to improvise the effects...this usually done manually and if you let a software program to do this for you automatically you create an artificial DTS. sorry

[BJ_M]

There is no difference between DTS and Dolby Digital...What they do is they take DD and change some layers accordingly to improvise the effects...this usually done manually and if you let a software program to do this for you automatically you create an artificial DTS. sorry

uhhh ? sorry -- you are way wrong ..
i create both dolby and dts media (cinema and consumeer) and can assure you they are not the same thing at all ..

[sir_max]

Sorry, but they AREN'T...U may think they are, but i can assure you it is not any better then DD. I know this from a fact from the movie business. Maybe i explained it wrong. Lets say the movie Gladiator and a fighting scene. What the DTS technition does is he listens to the DD and what he sees on the screen. Then he pulls the audio apart and changes it to improve the surround effects and the tone to match even better then DD. The trick is that u get more options with DTS then with DD. If u use a program to do it for you.....YES it will sound better, but unless you do it yourself you won't have a proper DTS experience.

[FulciLives]

My understanding (at least as far as a "real" hollywood type production) is that the soundtrack is created using some sort of high quality format that is uncompressed and better than both Dolby Digital and DTS so that when the final soundtrack is turned into a DD or DTS it is from this MASTER version and since DTS is better than DD then the DTS will be better.

I have never heard of a DTS being made from DD as a standard practise.

- John "FulciLives" Coleman

[sir_max]

I guess it is uncompressed and the Audio quality sounds better, but it taken from original source and it can never be better then that. Why does is sound then so good. so much better then DD. It using different technology where more information is available. DTS is not like mp3 or any othe codec u simpöy process and voila thats DTS. It is far more specific then DD and enhances it. We both have right. I guess we only have a different understanding of it.

txpharoah from a different thread about 5.1 DD
You won't have TRUE surround sound. You're making false surround. You'd need all 6 audio channels individually recorded and then remixed by an audio engineer. Most good receivers can emulate surround from Dolby Stereo 2/0 discs. That's all the software is doing anyway: emulating. Since your source is only stereo at best, you can never hope for anything better.

[Cornucopia]

That's just NOT how it works.

#1- Real audio engineers (or technicians) that work for the major studios don't work with something that's already compressed. They start with master tracks that are LPCM. CD quality or better-usually better especially these days.

#2- The subjective differences between AC3 and DTS aren't predicated on changes in the mix (gain, eq, balance). They are mainly a function of 2 things--Bitrate and Compression efficiency. Plain and simple, the signal with the higher bitrate will almost always sound better (yes, there are some exceptions). Compression efficiency is what all these debates should be about; if you have the same track at say 912kbps in both AC3 and DTS, the reason one would be better than the other would be that it is more efficient with its compression on that type of signal. That last part means that no one compression method is perfectly matched for all types of signals.

#3- Engineers rarely, if ever, "Pull apart" a signal as you would put it. They almost ALWAYS start with either the raw multitracks, or with submixed stems (Music / FX / Dialog--or in the case of CD's Rhythm section/SoloInstruments/BackingVox/LeadVox). It sounds to me (an audio engineer since 1984) that you are repackaging hearsay. I've done tons of research on Audio Recomposition and Restoration, and I can tell you it's NEVER to be taken lightly.

Sorry to burst your bubble...

Scott

[sir_max]

I am not saying they take the audio stream apart and change everything to it...but they make improvements to it...i think i will have to do some research and will post it here....talk to you later

[BJ_M]

Sorry, but they AREN'T...U may think they are, but i can assure you it is not any better then DD. I know this from a fact from the movie business. Maybe i explained it wrong. Lets say the movie Gladiator and a fighting scene. What the DTS technition does is he listens to the DD and what he sees on the screen. Then he pulls the audio apart and changes it to improve the surround effects and the tone to match even better then DD. The trick is that u get more options with DTS then with DD. If u use a program to do it for you.....YES it will sound better, but unless you do it yourself you won't have a proper DTS experience.

i AM in the movie bussness .. I AM the one creating DD and DTS tracks for movies and also for DVDs (mostly movies) (well maybe not creating them as much as manipulating or final mastering and compression) ,, i have been in this bussness for close to 20 years ..

so please don't tell me "how its done" .. i learned at Skywalker ranch - where i got certified as both a THX theatre inspector and dolby certification ..
I also work with DTS compression and equipment on a DAILY basis, as do all 3 of our film studios and both of our post production studios and also our 3 mixing theatres..

please don't take this the wrong way -- but you have no idea what you are talking about .. BUT if you can , take a tour of a mixing stage or studio .. even one of ours .

[sir_max]

take it easy. I am not telling you your job. I can only know from what people tell me....And someone else told me (sound technition) that a DTS has manual been changed...his example for that was the Eagles DVD with the soundtrack of hotel california were u can here the instruments from different single sources....to me this sounds believable....i guess he must have been wrong....

If u know what u r talking about. GREAT. Please tell me/us what ur job is then....