Thread: confuse about carmen fantasia sacd

Posts: 5

Post by truelies October 19, 2005 (1 of 5)
I bought ANNE-SOPHIE MUTTER Carmen-Fantasie SACD
yesterday.
I found that at end of the manual has a table. Said
the source of SACD layer is: 44.1KHz/24 bit; CD layer:
44.1KHz/16 bit.
What's this mean? Does this means the SACD I bought
only has 44.1KHz/24bit or this means it is made from
an 44.1KHz/24bit source?

I know DSD(SACD) is 64*44.1KHz/1bit.

Post by zeus October 19, 2005 (2 of 5)
truelies said:

I found that at end of the manual has a table. Said
the source of SACD layer is: 44.1KHz/24 bit; CD layer:
44.1KHz/16 bit.

In DG parlance, this means that the high-resolution DSD signal was derived from a 44.1kHz/24-bit PCM source.

Post by md October 20, 2005 (3 of 5)
zeus said:

In DG parlance, this means that the high-resolution DSD signal was derived from a 44.1kHz/24-bit PCM source.

zeus,

Can remastering a pcm source in dsd create better sound? Another question I have is what is the difference between an sacd in stereo and a dsd recording (that is not an sacd) in stereo?

Post by zeus October 20, 2005 (4 of 5)
md said:

Can remastering a pcm source in dsd create better sound? Another question I have is what is the difference between an sacd in stereo and a dsd recording (that is not an sacd) in stereo?

DSD has a depth of 20 bits so you'd expect the transfer to sound cleaner, more dynamic than a downsampling to 16 bits for CD.

As for the difference between DSD recordings on CD and SA-CD, what you'll hear from SA-CD is all the information they captured at the time of the recording (post-processing notwithstanding). SBM (Single Bit Mapping) for CD can preserve some of the original's qualities but it's a compromise. You can hear the differences (or at least you should be able to) by comparing the stereo high-resolution signal to the CD-compatible layer of hybrid discs.

Post by md October 21, 2005 (5 of 5)
zeus said:

DSD has a depth of 20 bits so you'd expect the transfer to sound cleaner, more dynamic than a downsampling to 16 bits for CD.

As for the difference between DSD recordings on CD and SA-CD, what you'll hear from SA-CD is all the information they captured at the time of the recording (post-processing notwithstanding). SBM (Single Bit Mapping) for CD can preserve some of the original's qualities but it's a compromise. You can hear the differences (or at least you should be able to) by comparing the stereo high-resolution signal to the CD-compatible layer of hybrid discs.

zeus:

Thanks. I have a very cheap sony sacd player, and there does not seem to be any sonic differences. Maye when I start to spend some money will the differences between psm and dsd be uncovered. Any suggestions for bargain players? Aslo, I heave been following the release of Genesis' "The Lamb..." for sacd, and i came across an interview where the remastering engineer said the sacd will a pcm master, not dsd, because the old tape has to be heated, and it's a big process. This makes me sad because i love the album, and it will never be heard with the beneifts of dsd. Isn't the whole point to get rid of the pcm technology? I suppose I would want the effort put forth at every cost to remaster in dsd, especially for these cases where a classic album could be shown in a new, better light. Any comments or insights would be welcome.

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