Blu-ray and SACD

[GoldenRedux]

Originally Posted by JimPullan

Take this for what it's worth. I believe that Sony's will be phasing out SACD, at least for the Blu-Ray Players, because the 'uncompressed 32 bit' Audio tracks are far superior to the 24 bit SACD's.

The uncompressed LPCM on BD and HD DVD is 24 bit, not 32 bit and DSD (the native format of SACD) is neither, it is a 1 bit bitstream.

I hope everyone here is aware that the first generation 'Sony" Blu-Ray Player does not, and I repeat . . Does Not play CD's or SACD's, only Blu-Ray DVD's and DVD's. It is strictly a DVD Player, not a CD Player.

That I know.

[GoldenRedux]

Originally Posted by dvda-sacd

I hope DSD 128 fs (5.6448 Mhz) is used in BD audio discs someday.

That's what I was hoping they would do.

[GoldenRedux]

Originally Posted by Deciazulado

My vote goes also to SACD. I have like near a 100 (mostly all the pop/rock titles I wanted, some out of print) and now I've started to dabble into the near 3000 classical/jazz titles, which are more readily available. At least there have been a few pop/rock releases this year (Byrds, Depeche Mode, Moody Blues, Little Richard) maybe there'll be a few more when the PS3 is established.


GoldenRedux said:


Isn't 192/24 PCM lossless?

192/24 is raw PCM, aka Linear PCM, there is no compression involved. I was referring to the lossless codecs - DTS-HD MA and Dolby True HD.

[GoldenRedux]

Originally Posted by dvda-sacd

Yes, it is. Lossless packaging codecs do not give any audio improvement over high resolution LPCM.

192/24 is not 'lossless' it is just uncompressed. 'Lossless' refers to the audio codecs. There is no audio improvement using a lossless codec as they are a bit-for-bit identical copy of the PCM data upon being decoded. In my original post that this all refers to, I was referring to the labels using a lossless codec instead of 192/24 LPCM.

[JimPullan]

Originally Posted by GoldenRedux

The uncompressed LPCM on BD and HD DVD is 24 bit, not 32 bit and DSD (the native format of SACD) is neither, it is a 1 bit bitstream.

Hmmmm ! I stand corrected - your right. Now, I can't figure out what is going to be 32 bit ?. I'll have to dig further. I know I read this somewhere.

Help !!!! I'm going mad with all this techno mumbo jumbo ! All I want is the finest audio playback I can experience.

Jim
Owner of the Arcam CD-36

[Deciazulado]

32bit is the internal processing word length of various digital audio editors, maybe there's where you saw it? You then dither down the output to 24 bit word length or 16 bit word length for distribution.


dvda-sacd, I had voted already

Thanks for the clarification, GoldenRedux

[GoldenRedux]

Originally Posted by Deciazulado

32bit is the internal processing word length of various digital audio editors, maybe there's where you saw it? You then dither down the output to 24 bit word length or 16 bit word length for distribution.

This is correct. There are some DAWs that also do 48-bit or 64-bit processing. I believe Pro Tools HD (I think that's what it's called) does 48-bit processing. The next version of Apple's Logic Pro application, Logic Pro 8 (I currently use Logic Pro 7.2) is going to have 64-bit processing, whereas now it has 32-bit.

Thanks for the clarification, GoldenRedux

[dvda-sacd]

Originally Posted by GoldenRedux

192/24 is not 'lossless' it is just uncompressed.

That's right, I confused lossless and uncompressed. Thank you for the correction.

Cheers!

[thunderhawk]

I wonder when you'll stop hearing the difference.

[GoldenRedux]

Originally Posted by thunderhawk

I wonder when you'll stop hearing the difference.