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In Reply to: RE: Why Rebuy? - I'm with you because as good as 192kHz PCM can be it still isn't anywhere near DSD. posted by Teresa on January 02, 2009 at 15:43:23
Teresa,Why are you assuming the new hirez format will necessarily be of lesser quality than DSD? Why would an engineer, given adequate bandwidth, choose to forego a master format that can accomodate existing formats as well as new ones? Certainly, directly competing (mutually exclusive) formats are a problem as we well know, but this does not appear to be the case with HDMI.
It should be possible, and there is already substantial evidence that it is, to pump many different forms of content over the same transmission mechanism. Furthermore, I don't see why one form of audio data storage cannot be packed within a generic format which then transits the HDMI link for unpacking, followed by native processing on the other end.
Specifically, I ask whether DSD can be packetized within a format which can readily transit HDMI where it can be unpacked, then buffered and independently clocked for jitter-free DAC? HATS would not be required between player and processor since packetized control protocols are already in place between them, and control of the DSD buffer would be completely within the processor. Would such a mechanism give us everything we want? Namely, jitter-free DSD over a cheap, standard digital interface allowing producers to hybridize hirez audio in both "native" BD form for the masses and "hidden" DSD for us? Cheap universal transports feeding a range of processors from mass-market all-in-ones to heavily modded ones with separate power supplies, DAC stages, etc.? Seems like the sky is brightening...
williak
Edits: 01/02/09 01/02/09Follow Ups:
The current Blu-ray spec does not support DSD and, correct me if I'm wrong, I don't think there is any future plan to encapsulate DSD on Blu-ray. The audio only spec is just a profile for music only discs to be played on any future Blu-ray music player w/o any sort of video screen for manipulating menus.I don't think there is anyone keen on inventing another new hi-res format at the moment when Blu-ray has just been able to get a bit of momentum. Judging from the current small resurgence of SACD format (new players that support SACD, steady SACD releases from smaller classical music labels, etc) it will stay in the niche audiophile and classical music + jazz market for the foreseeable future. Studio might even release a few 'usual suspect' recordings on Blu-ray "music" discs to test the water but I'm not holding my breath on it when even the Blu-ray movie market is still trying to stand on its own feet. The general public is NOT into hi-res audio.
Edits: 01/03/09 01/03/09 01/03/09
For many of them stumbling upon a site offering 24 Bit 96kHz downloads will be their first taste of music beyond CD resolution. I predict in time 24/96 downloads will be a craze,
And still 999 out 1,000 people have never heard of SACD or DVD-Audio. A person cannot reject something they have never heard or even know about.
Happy listening,
Teresa
Yes, the marketing of hi-res audio is not that great in the past and the DVD-A v.s. SACD format war didn't help either... but I doubt the general public care. Most folks are happy with the sound quality of CD, DVD (tracks from concerts/opera DVDs) and MP3 downloads. A lot of popular HTiB (Home-theatre in a Box) systems and DVD players in the last few years are compatible with either one or both hi-res audio formats so if a curious mind care he/she could have started to explore.
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