Audio Processing on the PS3 and Xbox 360

Oh, if you spent 11,000 quid on a speaker system you become an "audiophile". And at that point, I think there's a huge disconnected with reality which certainly explains the night and day difference you experienced.

Have you seen the review of the wooden knob that improves sound for receivers? ;)
 
Oh, if you spent 11,000 quid on a speaker system you become an "audiophile". And at that point, I think there's a huge disconnected with reality which certainly explains the night and day difference you experienced.

Have you seen the review of the wooden knob that improves sound for receivers? ;)

:rolleyes: So i cant hear a difference then? Its just the fact that my expensive speaker and amp give me a faulse illusion? Let me guess you play your games on a cheap ass system that makes them sound like crap?? Please!

I hear a difference and sometimes its a big differnce, either like it or lump it.

What was the point of you starting a thread about there audio capabilities if all you do is toss away opinions of people who OWN both system and have lissened to them BOTH? Shall i tell you what the point is? there isnt one, if your not go lissen to people views then dont watse mine or other people time by making threads on subjects that no matter what people contribute your not gonna lissen and make fun.
 
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:rolleyes: So i cant hear a difference then? Its just the fact that my expensive speaker and amp give me a faulse illusion? Let me guess you play your games on a cheap ass system that makes them sound like crap?? Please!

I hear a difference and sometimes its a big differnce, either like it or lump it.

What was the point of you starting a thread about there audio capabilities if all you do is toss away opinions of people who OWN both system and have lissened to them BOTH? Shall i tell you what the point is? there isnt one, if your not go lissen to people views then dont watse mine or other people time by making threads on subjects that no matter what people contribute your not gonna lissen and make fun.
I think what Asher means is that while you are probably able to hear a difference (maybe even a large difference), most people won't be able to, either because their equipment isn't good enough or because they themselves are unable to observe the subtle differences. It is the same with most people not hearing/caring about the difference between CD and a 128kb/s MP3.
 
I think what Asher means is that while you are probably able to hear a difference (maybe even a large difference), most people won't be able to, either because their equipment isn't good enough or because they themselves are unable to observe the subtle differences. It is the same with most people not hearing/caring about the difference between CD and a 128kb/s MP3.

Yeah and some think WII graphics look like a million and cant see the difference between SD and HiDef. Do we care about that? should we all go for lowest standard? No thanks.

I laugh when i read about "geeks" that just bought a "booming" 5.1 Sound system for their PC´s "it sounds incredible" and it´s 300 watts! Yet the psu is rated at 50 Watt the most costly part of the system was the marketing, it´s just to sad really.

So why are there such a gap between what people think of audio and graphic quality. Education, it´s that simple. If you don´t know what your listening to or how it should sound you have lost!, the same goes for graphics. It´s just that graphics is easier to explain and show A-B comparisons with. The hearing sense is totally underated but who cares? noone i guess :)

And in regards to the Uncompressed audio, as i tried to hint at earlier, the PS3 has an advantage over the competition since it can actually produce uncompressed audio over it´s HDMI output. Yes the original files may have been compressed but the game doesn´t have to recompress them again.And when it comes to a soundtrack it´s possible to cache the music on the Harddisk in a lossless compression and stream it from there while you stream game data from the BluRay disc.
 
:rolleyes: So i cant hear a difference then? Its just the fact that my expensive speaker and amp give me a faulse illusion? Let me guess you play your games on a cheap ass system that makes them sound like crap?? Please!

I hear a difference and sometimes its a big differnce, either like it or lump it.

What was the point of you starting a thread about there audio capabilities if all you do is toss away opinions of people who OWN both system and have lissened to them BOTH? Shall i tell you what the point is? there isnt one, if your not go lissen to people views then dont watse mine or other people time by making threads on subjects that no matter what people contribute your not gonna lissen and make fun.
As I've said, I do own both systems and I've listened to them both extensively. This isn't really about subjective opinions, because with audio quality it's really quite random. I do not hear any difference between the two. I'm willing to entertain technical discussions about how audio processing is implemented on either system, as this is in the technical forum, but I don't think generic "one sounds so much better than the other" comments are useful considering I don't hear any difference myself.

As I've said, I only have a 5.1 system so maybe this explains it. But to me, the sound separation on Xbox 360 titles like Halo 3 is on par with PS3 titles like Uncharted. Ditto for clarity and their transitions. I don't see any technical reason why one would reasonably sound better. I don't really think uncompressed audio is any different, aside from a useful marketing checkbox. In my humble experience, audiophiles are particularly affected by placebos and I believe this to be the case here.

It's the same story with Bluray titles, and audiophiles claiming the uncompressed tracks sound so much better than the losslessly compressed tracks. It boggles my mind since I don't hear any difference, and technically there's no difference in data integrity. But they swear up and down, that when they "lissen" they can hear a big difference.

What I'm looking for in this thread is a technical discussion to support claims that there's superior sound separation and transitions, which I haven't yet found.
 
As long as both consoles are hooked up to the same sound setup, with same settings for the reciever. Then it should be a fair comparision aslong as the speakers of course are high quality. :smile:

laugh when i read about "geeks" that just bought a "booming" 5.1 Sound system for their PC´s "it sounds incredible" and it´s 300 watts! Yet the psu is rated at 50 Watt the most costly part of the system was the marketing, it´s just to sad really.

One has to fell sorry for them. 300w/1000w/whatever non RMS values. If goign for PC speakers then RMS value, Hz value vs volume level and THX certification would be a good thing to look for. THX becouse it has to be able to pass through different test at a certain volume with a very low amount of distortion. Of course there are different THX cert types. :)
 
It's the same story with Bluray titles, and audiophiles claiming the uncompressed tracks sound so much better than the losslessly compressed tracks.

I guess you mean lossless compression, aka the bits that go in go out untouched. I am with you on principle, however if you read some reviews where a release has both lossless and PCM tracks there is a difference. Most likely it has something to do with the encoder settings. I read a review just recently but couldn´t dig it up.
 
In my humble experience, audiophiles are particularly affected by placebos and I believe this to be the case here.

It's the same story with Bluray titles, and audiophiles claiming the uncompressed tracks sound so much better than the losslessly compressed tracks. It boggles my mind since I don't hear any difference, and technically there's no difference in data integrity. But they swear up and down, that when they "lissen" they can hear a big difference.

So because you cant hear a difference there is'nt one? I suggest you go and buy a decent system and THEN come back and tell me you cant hear a difference.
 
Yeah and some think WII graphics look like a million and cant see the difference between SD and HiDef. Do we care about that? should we all go for lowest standard? No thanks.
That's a crap analogy. I've never met or even read about someone that can't tell the difference between Wii graphics and PS3/360 graphics. There are lots who don't care, but nobody that can't see a difference. With MP3/CD comparison, there are scientific studies that show a majority of people are unable to distinguish between them in ABX tests.

(P.S. I think ABX tests are stupid because you never do side-by-side comparisons when listening/viewing material. People should hear random samples without 1:1 comparison and try to match the general characteristics to some other reference samples. But at least it's indisputable proof, as side by side is the optimal situation for differentiation.)

I laugh when i read about "geeks" that just bought a "booming" 5.1 Sound system for their PC´s "it sounds incredible" and it´s 300 watts! Yet the psu is rated at 50 Watt the most costly part of the system was the marketing, it´s just to sad really.
That was the old days. Now Creative, Logitech, and Altec Lansing have tons of low-end models, and among "geeks" only a tiny percentage will buy a set with a falsely advertised spec.
 
I guess you mean lossless compression, aka the bits that go in go out untouched. I am with you on principle, however if you read some reviews where a release has both lossless and PCM tracks there is a difference. Most likely it has something to do with the encoder settings. I read a review just recently but couldn´t dig it up.
The only possibility I can imagine for explaining this is just that the hardware that does the decoding of lossless audio doesn't buffer decompressed stream data in any way prior to mixing and output, which causes the channels of audio to potentially get just slightly out of sync with each other if some part of it decompressed at a different rate (I'm not sure how they separate channels if at all in lossless streams). The less likely possibility is simply that the hardware just runs the decompressed audio through some other path which is inherently lower quality. (i.e. assumes that all compressed audio whether lossless 32-bit 256 KHz audio or 56 kbps MP3, it's all the same, so there's no need to think there's any quality worth preserving in the output).

If neither of those have any truth to them in reality, then as Asher says, the listeners are delusional. The data stream you get out from lossless decompression is identical by definition. They hear differences because they saw the word "compressed" and assumed that there will be differences.
 
I don't believe all that 'PS3 uses uncompressed audio' talk. Sure, maybe for streaming a cut scene or something...

Do you guys have any idea what the in game memory req's are for uncompressed samples?
Of couse the sound samples used to dynamicly generate game audio are compressed. The difference is the PS3 can take that generated soundtrack and output that at full quality though HDMI as multichannel PCM, where as the 360 must compress it's surround sound mix down to Dolby Digital.
 
If neither of those have any truth to them in reality, then as Asher says, the listeners are delusional. The data stream you get out from lossless decompression is identical by definition. They hear differences because they saw the word "compressed" and assumed that there will be differences.
Most of the time I'd agree with you, but there are variables unaccounted for here that has significant bearing on perceived audio differences: The listening equipment and the mastering process.

There's just no telling without detailed frequency analysis whether one track might be mixed slightly different WRT normalization, frequency dropoff towards the LFE, and/or whatnot. There's just no telling whether one particular amp and/or decoder might apply some adjustment to an output of one kind of input but not to the other. All we tend to get is anecdotal evidence which may or may not be placebo.

This is a discussion that has been going on for ages and ages, for example with DD vs. DTS, so depending on settings/equipment I'm not discounting that there may be differences in the eventual output. Still, that doesn't mean that it has any meaning to talk about one being 'better' than the other or that the differences are actually attributable to wiz-bang-spec-buzzword factors the 'placebophiles' attribute them to. More likely than not, they aren't. On one hand people tend to be too technical in discounting the possibility that perceivable differences can occur, while on the other hand people attribute such differences to whatever they'd like the cause to be and whatever fits their world view best.

Frankly, even having a discussion regarding whether uncompressed audio have any advantages over lossless compressed audio is a bit ludicrous.
 
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where as the 360 must compress it's surround sound mix down to Dolby Digital.
Or DTS or WMA-Pro, no? The situation where lossy samples are recompressed using a different codec after mixing (as opposed to outputting un(re)compressed multichannel PCM) is a theoretical advantage of the PS3, but I doubt there's going to be much of a (if any) perceivable quality impact from this with interactive media. I guess it could be tested/simulated, but for practical purposes I doubt it's worth the bother.
 
Most of the time I'd agree with you, but there are variables unaccounted for here that has significant bearing on perceived audio differences: The listening equipment and the mastering process.
Well, sure... but the previous post was about the only difference being the stream format. The listening equipment, mastering process, and listener(s) are the same, and the only difference is how its stored. Barring cases like those mentioned where the equipment itself introduces error into the output specifically for compressed streams, any difference is placebo.

The idea of error-introducing processing is at least verifiable by objective means, not that you could expect a manufacturer to admit to any such thing.

Frankly, even having a discussion regarding whether uncompressed audio have any advantages over lossless compressed audio is a bit ludicrous.
Of course, but the pursuit of pretentious meaninglessness is a powerful drive for anyone who professes themselves to be a "something"-o-phile.
 
Here's a perhaps stupid question: Is it not possible to store the compressed audio on the disc in DD already?
 
Or DTS or WMA-Pro, no?
I'm pretty sure it's just DD for games. I've never heard of a DTS game and my reciver doesn't support WMA Pro but from what I've heard it is just used for passthrough of pre-encoded media.

Here's a perhaps stupid question: Is it not possible to store the compressed audio on the disc in DD already?
The audio has to be generated in real time to match what is happening on the game, that is why the gun goes pop when you pull the trigger rather than when the devlopers thought you might. ;)
 
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The idea of error-introducing processing is at least verifiable by objective means, not that you could expect a manufacturer to admit to any such thing.
Sure. Not arguing against you at all, really. Your post was just a nice vector to my point.

When talking about differences that in theory should be very subtle or non-existent, the most likely factors (IMO, in the real world) causing the audible change (besides placebo) aren't in the discussion at all. These are factors that could be controlled for, but in discussions regarding anecdotal evidence aren't. Thus, you get page upon page with arguments regarding 'reasons' (that very likely would not be manifested in a controlled environment) vs. placebo, depending on preferences, bias, the whether that day, or other irrelevant factors.
 
I was told Skate is also DTS, but I have not confirmed it myself.


As for telling the differences, I find that room setup is also important. The same equipments in my place and a friend's produce different result (Mine is open room and airy; his is closed, soft and everything is tuned).
 
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The only possibility I can imagine for explaining this is just

The review put it down to the encoding Process afaik. Ok, i´ll go waste another hour trying to track down the review, i guess i love you all to much ;-)

EDIT:
http://www.dvdfile.com/index.php?option=com_content&task=view&id=6337&Itemid=3

that this slightly compromised fidelity of the Dolby TrueHD track is a result of dialogue normalization processing which is applied after the lossless sound file is extracted in the playback hardware’s decoding engine, and effectively re-writes every bit word with a new value as the amplitude of the entire digital waveform is digitally recalculated/reduced. I should point out that my audio gear, while better than the average Circuit-City rack-system, isn’t comprised of out-of-reach esoteric gear; I’m confident that most critical listeners with “good” sound systems will be able to hear the difference between the Dolby TrueHD and PCM soundtrack on the third film without difficulty.
 
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