Which do you prefer: Dolby TrueHD or DTS HD Master Audio?

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jimbowne

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Hello people. I recently purchased new speakers (Acesonic 510 speakers)and a pioneer 819 av receiver capable of decoding TrueHD and DTS HD. Since my previous setup was only able to decode dolby digital and dts, how much better are the new formats? I imagine they are pretty noticeable considering the difference in quality I heard while comparing dts to dts 96/24. What are your thoughts about the new formats?

-I also have to admit a personal bias favoring DTS.
 
but wether they use different compression methods, data should not be lost, when the signal is decompressed, assuming it is lossless.


both on blu ray

MAX.18mbps (DD true HD) and 24mbps/VAR (DTS HD MA)

DTS does not use MLP, method of compressing data.
 
 
I've also felt DTS to be more realistic & crisp and i'm yet to experience DTS HD MA.


 
I found this discussion because I too am amazed how crappy True HD sounds compared to DTS. I just watched the Star Trek 2009 movie and it sounds awful and muddy. It's not my Yamaha Receiver 7.1 150 watts HDMI or new Klipsch speakers. When I play the new Star Wars Teaser it blows my mind. I had to turn the volume down almost 15 dec from the Star Trek movie. The room just shakes. Even John Rambo movie sounds muddy also in True HD. It really sucks cause the sound is 80% of the movie. When I play the opening scene to Xmen 1 with the kid magneto bending the gates..omg...it is absolutely off this planet. Why is it so bad? Have anyone figured this out? Is it a setting things?
 
To JohnCranberry:
I hate to be the one to say this but you're confusing the issue of volume with sound quality. Many people, yourself included apparently, feel that louder is better. However that is not an actual description of quality, just quantity.

DTSHDMA, WAV, PCM, LPCM, TrueHD & FLAC are all lossless codecs and therefore mean they have the exact same information in them and will sound identical with a properly set up sound system and the master volume adjusted so the volume coming out of the speakers yields the same decibels. Provided the source material is masted and then the same data is encoded, it's the same. The only way there could be a difference is if the audio was mastered and then encoded by say TrueHD, and then mastered again differently and encoded by say DTSHDMA...however even if it was encoded again with TrueHD it would sound different as well.

Some of those formats have metadata which trys to tell the receiver or processing unit to adjust the sound in certain ways...however this can all be voided by turning that processing off and adjusting the volume respectively.

It could very well be that your audio system just isn't good enough to reproduce very high quality sound or quality sound to the volume you would like...if STAR TREK 2009 sounds muddy then I think it's stressing out your system. On my system it sounds crisp, clear and amazing in TrueHD, DTSHDMA, LPCM and in FLAC. I've done them all. It's funny you picked that movie because I used that specific movie to do sound tests on my system. One other consideration about your system could be it's not set up just right either...possible the speakers are slightly out of alignment and your getting interference. And lastly it could be the specific sounds from that movie track are such that they bounce weirdly off the walls, or furniture in your room and make it sound muffled. All these last things can be fixed by a proper optimization of your sound system and speaker placement.

Lastly, you can't compare different movies and say that he codec is bad. If the audio sounds bad when using any of these lossless codecs, then it's either the recording and/or mastering of the audio that was done poorly, or it's your system not reproducing the sounds properly.

PS - I almost forgot to add...I like DTS-HDMA better only because it seems to be more compatible with more equipment. My Sony BDP-S590 won't play an mkv file with TrueHD, but is great with the rest of the codecs. Also, lots of software to rip/encode/decode doesn't like or won't do TrueHD where it will DTS. With that said, if you're only ever going to play a bluray disc movie in a bluray player connected to a receiver that can output any of those codecs...than I have no preference...they are all FANTASTIC!!
 
This review is about the audio Dolby tru HD 7.1 of John Wick Dolby tru hd 7.1 blu ray which I watched yesterday. There are many debates going around online about which is the better format DTS-HD OR DOLBY TRU-HD. According to my experience the DTS-HD format is far better than the dolby sound. I have to crank up the volume 10 db more for Dolby encoded blurays than DTS to get the proper sound moreover the dolby audio is not at all crisp & clear as in DTS. Now about the audio of John Wick its pretty dull & flat. I had doubts about my Pioneer LX-85 reciever & OPPO bluray player but at the start of the movie there is this DOLBY ATMOS demo which is very clear & loud at normal volume level. Even Expendables 3 & Ninja turtles audio encoded in dd 7.1 were totaly flat. The sounds where glasses break are totally muddled with dolby tru hd blurays.
 


I have both with a pretty good system: HK3700 w.polk (rti serie a7\csi6\rti4\sub klipsh220) and they sound very good... I can't tell really which is the best, but i find they sound different anyway.... maybe the mastering.
 
Been doing this since the start. DTS and DTS-HD are by far preferable to the always nasty AC3 we had for many years. Another nice thing is that if you have a DTS receiver DTS-HD will support it at the Regular DTS bit rate. Lets hope that the new DTS X that their working on will also support legacy. Backward compatibility is very important. DTS was the first sound good enough to make me toss some $$$ on speakers. JBL setup 5.1 Full size speakers although my system will support 7.1. That's simply crazy unless you have a huge house.
5.1 rocks in DTS and is clear and crisp. compared to Dolby ac3 it's simply incredible even with 55 year old years battered by concerts.
 


 


 



that is why i use only dvd player and see only dvd movies because i have only 2 speakers and dolby 2.0 mono or stereo is the best for my 2 speakers and dvd dont use 24 bit audio that is why i love it even more we can not hear more than 20khz anyway
 


I think you think it sounds better specifically because of your "55 year old years battered by concert" ears. DTS is usually louder (louder does not mean better nor more fidelity), it just means louder. However, it is, literally, human nature for louder things to appear better to the human brain. You can hear it more easily and you think it is better. There are numerous papers on this and lots of studies that directly lead to the the 1970s and 1980s advertisement VOLUME HIKE in ads between shows. Louder means you're more likely to listen to it, hear it, like it.

With that said, in double blind testing, 5.1 AC3 at 640kbps (not the standard DVD 448 but the full 640) has had the same results as somewhere in the ~200kbps mp3s as compared to compressed lossless and uncompressed lcpm audio. THE HUMAN EAR CAN'T TELL THE DIFFERENCE when properly adjusted for volume and encoded from the same source.

That doesn't mean there aren't a few rare people who really can tell the difference, there might be, but we're talking a really small percentage of people. The human ear range is pretty tight, there are certainly people who can hear better than others but it's not orders of magnitude, there are no "magical" ears, the ears can only hear so much.

Also, that doesn't mean you can get around your brain either. For example in your case you now think that AC3 sucks and DTS is better or the best. I doubt there is anything that is going to let you (your brain) have an objective opinion about this anymore except for possibly doing a proper double blind audio test.

However, even if proven wrong, many pyschological studies have shown that you will then be MORE LIKELY to believe the bias because you were proven wrong.

And in the end no matter what if given the choice you're gonna pick DTS over AC3, it's just how the brain works. Unless you can really stay unbiased and objective, which is very hard for humans to truly do, but can be done with training.
 


I really don't understand your argument very much. You do realize that:

NO SOUND IS EVER RECORDED IN DOLBY or DTS, right?

Those are codecs used when the movie is released for distribution!! And even then if using lossless codecs, THERE IS NO DIFFERENCE IN AUDIO SIGNAL. Unless they are encoded from different mixes or masters of course. There can be modifiers in the code that tell playback devices how to play it back and even these you can usually turn off if you like.

SOUND IS RECORDED PCM OR LPCM

or any other RAW audio format that literally just records sound.

Let me say this, professional audio is recorded this way. Sure cell phone and many other devices can record sound in mp3 or whatever format, but even then I think it is originally recorded in raw and then converted and the raw deleted.

And then the whole DVD versus BD thing...are you freaking serious? DVDs look okay when played on DVD players and on an old 480p TV. However on newer HD TVs, they look like crap. Bluray BLOWS DVD OUT OF THE WATER!!!

I don't think you know the difference between new technology/new science, and brand names.

DVDs are a technology that store information on a physical disc. Blurays or BDs are the exact same thing. They just store the information differently. As a result, you can store nearly 6 times as much information on a BD as a DVD. Because of this difference, BDs contain much better looking (and arguably) better sounding media. That's not really a debate.

Your whole die hard argument makes no sense to me either. Look I think it silly to pay more for the TrueHD and DTSHDMA tracks, drives me crazy. It costs the same (or more) to convert them to lossy formats than lossless formats, it is marketing sure. BUT, in the case of DIE HARD, they actually had to pay someone to RE MIX THE AUDIO tracks into the new 5.1 or 7.1 or whatever. It's not like they are converting the old sound, they are REMIXING IT!! It doesn't always sound better and you can have someone unqualified to do it of course, but barring something crazy and unexpected, a remixed HD audio version of a movie sound track should sound much better than a dolby stereo version from 30 years ago.

It goes back to how audio is recorded...it's raw audio data. If it is remixed from the originals (which of course it would be), then you can't have any better starting material...unless of course those originals have degraded.
 
I wonder why no one is ever mentioning the huge advantage of Dolby TrueHD vs DTS HD:

METADATA! Dolby TrueHD has the ability to add dynamic compression in a controlled fashion upon decoding if desired by the listener. This means that soundtracks can be mixed to the highest denominator with full dynamic range, and compression can be applied in a way determined by the mixing engineer e.g for late night listening BY YOUR PLAYBACK DEVICE! These fantastic and costumer-focussed features are not available with DTS, that is engineered way more crude in comparison with Dolby. From a pure sound quality perspective, they both sound great, but the flexibility of Dolby systems yields for a much better tailormade experience for the user.


Because DTS does not have these features, mixes often tends to be lowest denominator = less dynamic range, flat and boring to reach some middle ground. This is not because of the codec, but is due to the lack of features. A Dolby TrueHD soundtrack is also more a guarantee that the studio releasing knows what they are doing, as Dolby TrueHD requires some thinking to deliver correctly.

The real reason for the change towards DTS HD is probably much more likely, that the tools used to encode in the formats are much cheaper for the studios when using DTS than the tools for Dolby TrueHD (as of 2010). I find it saddening, that the best possible experience is obviously not what is driving the studios, even though Blu-Ray is becoming a pure entusiast medium for costumers that insist on the best possible presentation of the source material. It is time that the studios realise that, and step up their efforts to deliver the best possible experiences on BD and UHDBD now that online delivery / crap quality has become the standard.

Dolby TrueHD ticks all the boxes for this purpose, as it can deliver highest denominator and scale down in a controlled way to suit lesser playback environments in a way that DTS cant.

For anyone that actually has the ability to listen to the difference on a good home theater system between a Dolby Digital online streaming version of a movie vs a Dolby TrueHD delivery from a blu-ray of the same material, you will be left enlightened and chocked that so many people are missing so much from their movie experience.
 


 


 
that bluray is better than dvd in sound is not really true, i have a dvd of the first dracula that blows away the bluray audio of the same dracula movie! and the picture looks better in many parts in the dvd but sometimes the picture is better in the bluray.
 
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