Hi :
I was looking at http://www.blu-raystats.com/. I saw that over 60% of teh disks have 'Lossless Audio'
1. Is this the correct/technical name of a format. Or a loosely used term ( AFAIK DTS-MA is lossless too )

2. Also LPCM is uncompressed right ? ( So the player will not have to do any decoding at all ? )

Thanks

1. Lossless audio consists of LPCM, TruHD, DTS HD MA and DTS HD.

2. LPCM (linear pulse code modulation), is being used for Blu Ray as a lossless carrier.

DTS-HD High Resolution is not a lossless codec, it is a high resolution lossy codec. DTS-MA is the only lossless DTS codec.

I just got a PS3 and have it connected to my Yamaha 2600 via HDMI for A/V, with the audio set to PCM. When I watched a BR Disk (It was either Cars or Meet the Robinsons) my Receiver displayed MPMC (or was it MLPCM? sorry fuzzy memory!) What do you think that was as opposed to LMPC?

Multi Channel LPCM

I just got a PS3 and have it connected to my Yamaha 2600 via HDMI for A/V, with the audio set to PCM. When I watched a BR Disk (It was either Cars or Meet the Robinsons) my Receiver displayed MPMC (or was it MLPCM? sorry fuzzy memory!) What do you think that was as opposed to LMPC?

My guess is that it was trying to say it was multi-channel. Since there is no such codec out there that I know of. But anyone elses guess is as good as mine.

I always wondered what lossless audio consisted of. I always thought it was it's own audio like TruHD or DTS.

I never wanted to start a thread asking a whole bunch of HD questions since I'm kind of new here. lol.

I always wondered what lossless audio consisted of. I always thought it was it's own audio like TruHD or DTS.

I never wanted to start a thread asking a whole bunch of HD questions since I'm kind of new here. lol.

In a nutshell:

LPCM: Lossless and uncompressed.

TrueHD & DTS-HD Master: Lossless and compressed (take about 1/2 the space/bandwidth of LPCM and much like a Zip file for audio).

DD, DD+, DTS (core) and DTS-HD: Lossy (perceptual coding) and compressed.

Thanks everybody for the responses :
One thing is clear for me : www.blueraystats.com should not categorized 'lossless' along with DTS HD MA ( as if they are two different formats )
Also what happens when my player setting is 'bitstream' AND the disk has Multi channel LPCM ?
( Will the LPCM be streamed through the HDMI ? )

Thanks everybody for the responses :
One thing is clear for me : www.blueraystats.com should not categorized 'lossless' along with DTS HD MA ( as if they are two different formats )
Also what happens when my player setting is 'bitstream' AND the disk has Multi channel LPCM ?
( Will the LPCM be streamed through the HDMI ? )

If you look it breaks all the lossless formats out. There is TrueHD, DTS HD MA, and PCM. All it is doing is telling you what kind of lossless is on the disc. Which depending on your player and receiver is very important if you want lossless sound.

...One thing is clear for me : www.blueraystats.com should not categorized 'lossless' along with DTS HD MA ( as if they are two different formats )...
...but DTS-HD Master IS lossless.:confused:

In a nutshell:

LPCM: Lossless and uncompressed.

TrueHD & DTS-HD Master: Lossless and compressed (take about 1/2 the space/bandwidth of LPCM and much like a Zip file for audio).

DD, DD+, DTS (core) and DTS-HD: Lossy (perceptual coding) and compressed.


Yep, just focus on this response and you will be right on.

Yes, in theory, it is DTS core with lossless extensions. It is not bit for bit identical to the master but it can be very, very close. DTS HD can handle 8mbps which is higher than any of the lossless tracks that have been released on either format so far.
You listed DTS-HD (presumably meaning High Resolution, since Master Audio was listed separately) as lossless. This is incorrect, as has been pointed out. And no, DTS-HD is not a "DTS core with lossless extensions." It's a DTS core with lossy (XBR) extensions. No amount of spinning on your part will change the fact that you made a mistake. Just own it and move on.

BTW, your numbers are wrong. DTS-HD HR has a max bitrate of 6Mbps (not 8) on BD and 3Mbps on HD DVD.

http://img148.imageshack.us/img148/6104/dtschartjz7.jpg

WTF is your problem? I am not trying to spin it. If a DTS HD MA track @ 5mbps and a DTS HD track @ 5 mbps were on a disc, would they not be identical? I guess I am confused here.
Yes, you are confused. DTS-HD may (or may not) sound identical to DTS-HD MA at the same bitrate, but DTS-HD is not technically lossless, according to DTS. If you have a problem with that, I would suggest you take it up with them, since I'm getting my information straight from their website.

DTS-HD High Resolution = DTS Core + XBR Extensions
DTS-HD MA = DTS Core + XLL Extensions

They are different and only one of them is lossless, despite what you listed in post #2 (and continue to attempt to spin into a correct answer.)

Don't get mad at others because you made a mistake. I would suggest taking a look at the DTS-HD White Paper (http://www.dtsonline.com/media/DTS-HD_WhitePaper.pdf) and the DTS website (http://www.dtsonline.com/dts-hd/) for more information.

Steeb,

that is fine, if I make a mistake correct me. These kind of comments are not needed.

I only posted that after you tried to spin away your mistake. Just to jog your memory, MaynardJames posted:
DTS-HD High Resolution is not a lossless codec, it is a high resolution lossy codec. DTS-MA is the only lossless DTS codec.
You responded with:
Yes, in theory, it is DTS core with lossless extensions. It is not bit for bit identical to the master but it can be very, very close. DTS HD can handle 8mbps which is higher than any of the lossless tracks that have been released on either format so far.
Ignoring the fact that you made two obvious technical errors (the 8Mbps max bitrate and the core + lossless extensions bit), you never actually admitted you were wrong. Instead, you tried to show that they probably sound the same, so they must both be lossless, which completely ignores the fact that you made the blanket statement that DTS-HD is lossless (it is not.)

As I said before, just own your mistakes and move on.