Good demo for lossy vs lossless differences

[PoorSignal]

I know for the Warner movies like The Matrix has both DD5.1 and TrueHD and you can easily switch back and forth.

Does anyone notice a big difference, please name the movie and particular scene.

[OhDamaso]

The DD from Riddick HD DVD to the DTS-HD MA...just about any scene...huge difference for me.

[Petra_Kalbrain]

I'm a big fan of the following for showing the difference between lossy and lossless...

Cars - great perception of detail increase between DD 5.1 and LPCM

3:10 To Yuma - The train sequence at the end of the film is INSANE for the difference in directional/environmental effects. As the train rolls in, the sobwoofer (SOBwoofer because it makes me cry tears of joy) shakes my walls and the bottles rattling on the shelves in the scene seem to multiply 100 fold!!!

[saprano]

Whatever movie you choose please use the DVD version. dolby digital and dts on bluray is much better than on DVD. infact on some movies i can't tell the difference between the lossy and lossless track on the bluray. the only movie i have that has a big difference on bluray is live free or die hard. the dolby digital sounds low and compressed compared to dtsma which sounds airy and detailed.

Its better to use the lossy tracks on DVD to hear a real difference.

[NJ_RAMS_FAN]

Originally Posted by Petra_Kalbrain

I'm a big fan of the following for showing the difference between lossy and lossless...

Cars - great perception of detail increase between DD 5.1 and LPCM

3:10 To Yuma - The train sequence at the end of the film is INSANE for the difference in directional/environmental effects. As the train rolls in, the sobwoofer (SOBwoofer because it makes me cry tears of joy) shakes my walls and the bottles rattling on the shelves in the scene seem to multiply 100 fold!!!

+1 on the cars!! sounds so beautiful.

[RocShemp]

Technically, 3:10 To Yuma isn't a lossless track. It's uncompressed PCM. But, yes, it's an amazing and beautiful difference.

[phansson]

Originally Posted by RocShemp

Technically, 3:10 To Yuma isn't a lossless track. It's uncompressed PCM. But, yes, it's an amazing and beautiful difference.

LPCM (or pcm) on Blu Ray is an uncompressed lossless track. Just for the record....

[Todd Smith]

Originally Posted by RocShemp

Technically, 3:10 To Yuma isn't a lossless track. It's uncompressed PCM. But, yes, it's an amazing and beautiful difference.

Uncompressed PCM IS lossless

[RocShemp]

Originally Posted by phansson

LPCM (or pcm) on Blu Ray is an uncompressed lossless track. Just for the record....

Lossless and lossy refer to types of compression. Uncompressed PCM is, well, uncompressed. It cannot be lossless (or lossy) as it was not compressed.

[DualEdge]

Two of my favorties to use when demoing the comparison is House of Flying Daggers (the follow the bean sequence) and the new version of Superman Returns (the intro says it all).

[Kryptonic]

Originally Posted by RocShemp

Lossless and lossy refer to types of compression. Uncompressed PCM is, well, uncompressed. It cannot be lossless (or lossy) as it was not compressed.

It's just a terminology difference. Call it lossless or uncompressed, it's the same thing.

Originally Posted by DualEdge

Two of my favorties to use when demoing the comparison is House of Flying Daggers (the follow the bean sequence) and the new version of Superman Returns (the intro says it all).

This is the first one that immediately came to mind. The PCM and TrueHD tracks on the BD are a huge leap over the DD.

Another good one I imagine would be T2, comparing the DD EX track and the DTS-HDMA track.

[cdot2four]

Black hawk down I showed my friends the difference between audio and hd audio with a push of a button

[BIslander]

Originally Posted by Kryptonic

It's just a terminology difference. Call it lossless or uncompressed, it's the same thing.

It's actually a matter of using the correct terminology.

Lossless refers to a type of compression where all of the material removed during encoding is restored during decoding. There is no loss. That's different from lossy processing where some of the data removed during encoding is not restored during decoding.

PCM never goes through an encoding/decoding or compression/decompression process. So, it's not lossless. It's just PCM. You can call it uncompressed PCM if you want, although that seems unnecessary. What is compressed PCM?

[ghebert]

Originally Posted by Todd Smith

Uncompressed PCM IS lossless

Actually lossless actually means that there is compression with no loss in quality...PCM has no compression to begin with so there is nothing to be lost. Saying that a PCM track is lossless is like saying tuna fish or PIN number...it is already implied that tuna is a fish and the N in PIN stands for number, no need to say it again. If an audio track is not compressed then it can't be lossy/lossless, it is simply uncompressed...to say that it's lossless means that it can also be lossy.

[Graytwhyte]

I noticed a big difference in U571. I thought the bass was deeper and louder on the dvd version, but there is so much more clarity and detail on the blu. During the depth charges scene you can hear dishes rattle on the blu, and only hear the rumbling on the dvd. The bass is also of better quality on blu.

[phansson]

I know this is all semantics,

DTS HD MA = TruHD = LPCM = original studio soundtrack

Personally, I call all of them "lossless" because they all equal a copy of the original soundtrack without any loss of information.

[igotcabada]

I noticed a big difference on Black Hawk Down...

Since the default audio setting is Dolby 5.1 rather than PCM , it took about 5 minutes into the movie to realize that I was listening to the the DD rather than the PCM

[davcole]

Originally Posted by Graytwhyte

I noticed a big difference in U571. I thought the bass was deeper and louder on the dvd version, but there is so much more clarity and detail on the blu. During the depth charges scene you can hear dishes rattle on the blu, and only hear the rumbling on the dvd. The bass is also of better quality on blu.

Agreed!!

I've heard the DTS track and the DTSMA and the DTSMA improves on it. There is more inner detail. I was able to pick up background details that i'd never noticed before. There is one scene before they leave on the sub where the cook mentions the eggs dropping. On the DTSMA I heard the egss drop and break offscreen, that's a detail i'd never heard before.

[RocShemp]

Originally Posted by BIslander

It's actually a matter of using the correct terminology.

Lossless refers to a type of compression where all of the material removed during encoding is restored during decoding. There is no loss. That's different from lossy processing where some of the data removed during encoding is not restored during decoding.

PCM never goes through an encoding/decoding or compression/decompression process. So, it's not lossless. It's just PCM. You can call it uncompressed PCM if you want, although that seems unnecessary. What is compressed PCM?

Originally Posted by ghebert

Actually lossless actually means that there is compression with no loss in quality...PCM has no compression to begin with so there is nothing to be lost. Saying that a PCM track is lossless is like saying tuna fish or PIN number...it is already implied that tuna is a fish and the N in PIN stands for number, no need to say it again. If an audio track is not compressed then it can't be lossy/lossless, it is simply uncompressed...to say that it's lossless means that it can also be lossy.

Thank you both. I'm glad to see someone gets what I was saying.

[JasonR]

Chris Botti: Live

Huge difference in the lossless and lossy tracks.