Saidera
Senior Member
My primary interest is in DSP like SBM Direct because DSD to me is overkill. If the ‘best sounding’ PCM CD is made from DSD via SBM Direct, like Sony HK liked to assert, then I want to test that claim properly.
So how'd one go about doing that?
Like this perhaps:
https://www.audiosciencereview.com/...ound-quality-of-dsd.14773/page-20#post-517365
https://www.audiosciencereview.com/...ound-quality-of-dsd.14773/page-21#post-517534
https://www.audiosciencereview.com/...ound-quality-of-dsd.14773/page-22#post-518757
By getting SSMS DSD Mode, unless you have access to K-1327 in a mastering studio somewhere, or a Sonoma software system.
I would like some assistance in this matter.
It may not be possible to objectively test this claim that DSD CDs are better. Even mastering studios will regularly subjectively compare different ways of downsampling DSD, and SBM Direct is not always the first choice.
However Eiichi Ohtaki used SBM Direct for his 2011 remaster of his album A Long vacation (now in 360 Reality Audio, so it is not an unpopular album in Japan). Then he indirectly publicised it via book interviews etc although he had no interest in suffering the difficulties of creating music as opposed to merely listening, nor was he interested in using DSD or Blu-Ray to create anything or as a consumer.
I am still researching, but SBM Direct can apparently retain enough of the benefits of pure recorded DSD audio (if any) within the 22 kHz band it is limited to playing with thanks also to the proprietary curve which is different to the 1990s SBM's one, however details are kept hidden by Sony. I want to objectively verify this statement or to deny it and to accept that there are better dithers now. See http://archimago.blogspot.com/2020/07/summer-musings-post-hi-res-audio-why-hi.html#more
where the SBM process is shown to keep the noise floor down to around -140dB for most of the audible range and rises from 14kHz. How does SBM Direct compare?
You may have heard SBM Direct PCM if you bought SACDs dual layer (playable in CD player) or have DSD CDs from Hong Kong, or Yo Yo Ma’s 2009 Box set (full SBM Direct) or Glenn Gould’s Complete Collection 2015 full SBM Direct or basically a high proportion of Sony Music releases these days are still SBM Direct-based, if they merely downconvert the DSD masters they hold to 24/44.1 SBM Direct PCM. New recordings are rare, and that should explain something as well.
So how'd one go about doing that?
Like this perhaps:
https://www.audiosciencereview.com/...ound-quality-of-dsd.14773/page-20#post-517365
https://www.audiosciencereview.com/...ound-quality-of-dsd.14773/page-21#post-517534
https://www.audiosciencereview.com/...ound-quality-of-dsd.14773/page-22#post-518757
By getting SSMS DSD Mode, unless you have access to K-1327 in a mastering studio somewhere, or a Sonoma software system.
I would like some assistance in this matter.
It may not be possible to objectively test this claim that DSD CDs are better. Even mastering studios will regularly subjectively compare different ways of downsampling DSD, and SBM Direct is not always the first choice.
However Eiichi Ohtaki used SBM Direct for his 2011 remaster of his album A Long vacation (now in 360 Reality Audio, so it is not an unpopular album in Japan). Then he indirectly publicised it via book interviews etc although he had no interest in suffering the difficulties of creating music as opposed to merely listening, nor was he interested in using DSD or Blu-Ray to create anything or as a consumer.
I am still researching, but SBM Direct can apparently retain enough of the benefits of pure recorded DSD audio (if any) within the 22 kHz band it is limited to playing with thanks also to the proprietary curve which is different to the 1990s SBM's one, however details are kept hidden by Sony. I want to objectively verify this statement or to deny it and to accept that there are better dithers now. See http://archimago.blogspot.com/2020/07/summer-musings-post-hi-res-audio-why-hi.html#more
where the SBM process is shown to keep the noise floor down to around -140dB for most of the audible range and rises from 14kHz. How does SBM Direct compare?
You may have heard SBM Direct PCM if you bought SACDs dual layer (playable in CD player) or have DSD CDs from Hong Kong, or Yo Yo Ma’s 2009 Box set (full SBM Direct) or Glenn Gould’s Complete Collection 2015 full SBM Direct or basically a high proportion of Sony Music releases these days are still SBM Direct-based, if they merely downconvert the DSD masters they hold to 24/44.1 SBM Direct PCM. New recordings are rare, and that should explain something as well.
Last edited: