No, no, no - Ted Smith - Digital Drive

No, no, no

Posted by Ted Smith (M) on February 25, 2007 at 14:31:29

In Reply to: Different Data Transmissions..... posted by Todd Krieger on February 25, 2007 at 14:05:00:

Howdy

No ASRC is required. Simple SSRC is sufficient (remember integer ratios..., DSD is 64 times CD and 147/5 time 96K and 147/10 times 192K.

All SACD players also play any CDs so there's no real problem there, some choose to implement separate signals paths for CD but most share a lot with the DSD path, for example upconverting Redbook to DSD and then using the DSD path. I don't know of any that support HDCD because (at least historically) HDCD required (by spec) one of a few particular DACs from Pacific Microsonics which (since they were developed before SACD) didn't handle SACD. Now that Microsoft owns HDCD, they let you use software to do HDCD decoding, but they are in the DVD-A camp.

To handle SACD and DVD-A is more a question of which chips you want to use, etc. since SACDs at the physical level are essentially DVDs anyway the transport is already there for DVD-A. Once again manufacturers have a broad range of options, from separate signal paths to sharing almost everything.

I should also point out that some early universal machines took the other route of converting DSD to PCM and then shared their PCM signal path.

-Ted

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Follow Ups Full Thread

Topic - Confused about CD formats... - reedthis 13:35:19 02/25/07 (17)

Re: Confused about CD formats... - michaelv20850 11:53:44 02/27/07 (1)

Not quite - Charles Hansen 12:54:33 02/28/07 (0)

The CARY 306SACD player plays all three formats. nt - DannyB 18:38:43 02/26/07 (2)

Re: The CARY 306SACD player plays all three formats. nt - reedthis 19:11:25 02/26/07 (1)

NAD M5 and M55 do also . . . - JoshT 14:47:56 03/02/07 (0)

"Do most people not bother with HDCD" - Metralla 07:55:24 02/26/07 (0)

Re: Confused about CD formats... - three_sox 02:48:46 02/26/07 (0)

Different Data Transmissions..... - Todd Krieger 14:05:00 02/25/07 (9)

Re: Different Data Transmissions..... - reedthis 15:37:51 02/25/07 (3)

Re: Different Data Transmissions..... - michaelv20850 11:57:41 02/27/07 (0)

Re: Different Data Transmissions..... - Ted Smith 16:18:20 02/25/07 (0)

:-) - Christine Tham 15:59:51 02/25/07 (0)

No, no, no - Ted Smith 14:31:29 02/25/07 (4)

Re: No, no, no - Todd Krieger 14:52:11 02/25/07 (3)

Re: No, no, no - Ted Smith 14:55:01 02/25/07 (2)

Some of us, unfortunately, - Dave Pogue 04:57:11 02/26/07 (1)

:) [nt] - Ted Smith 08:19:10 02/26/07 (0)

Follow Ups

No, no, no - Ted Smith 14:31:29 02/25/07 (4)

Re: No, no, no - Todd Krieger 14:52:11 02/25/07 (3)

Re: No, no, no - Ted Smith 14:55:01 02/25/07 (2)

Some of us, unfortunately, - Dave Pogue 04:57:11 02/26/07 (1)

:) [nt] - Ted Smith 08:19:10 02/26/07 (0)

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