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High Rez vs. RBCD: Is There A Difference?

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  • High Rez vs. RBCD: Is There A Difference?

    Yes, according to the author of this article.

    18296.pdf

    The overall conclusion is that the perceived fidelity of an audio recording and playback chain can be affected by operating beyond conventional resolution.

    As Gus Skinas of Sony said:

    "This is only the beginning... Now let's figure out why DSD is so much more "believable" than PCM at lower sample rates. Is it only about the sample rate? If the tests are designed to determine what is felt rather then what is heard, there will be a much bigger difference in the results. You don't have to be an audiophile or "golden ear" to feel the difference.:
    Attached Files
    Myles B. Astor, PhD, Administrator
    Senior Editor, Positive-Feedback.com
    ________________________________________

    -Zellaton Plural Evo speakers
    -Goldmund Telos 300 stereo amp
    -Goldmund Mimesis 37S Nextgen preamplifier
    -Doshi EVO and Goldmund PH3.8 phonostage
    -VPI Vanquish direct-drive turntable
    -VPI 12-inch 3D Fat Boy dual pivot tonearm, VPI 12-inch 3D Fat Boy gimballed and SAT LM-12 arm
    -Lyra Atlas SL Lambda, Fuuga Mk. 2, vdh Colibri Master Signature, MutechHayabusa, MOFI Master Tracker, Sumiko Songbird cartridges
    -Technics RS1506 with Flux Magnetic heads, Doshi V3.0 tape stage (balanced)
    -Assorted cables including Transparent XL Gen. 6, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble Power Cords
    -Accessories including Stillpoint Aperture panels, Cathedral Sound panels, Furutech NCF Nano AC receptacles; Silver Circle Tchaik 6 PLC, Symposium ISIS and SRA Craz 3 racks, Audiodharma Cable Cooker, Symposium Ultra and assorted SRA OHIO Class 2.1+ platforms.

  • #2
    Oh yes, how about this statement from the authors:

    "Authors have noted that ABX tests have a high cognitive load [11], which might lead to false negatives (Type II errors)."

    About time someone owned up to this issue. It's called the inverted U hypothesis. The more things we have to focus upon, the lower our perceptual ability. To put it in a real world analog, think about why football defenses blitz the QB. The more things the QB has to concentrate on, the bigger chance there is of him making a mistake.
    Myles B. Astor, PhD, Administrator
    Senior Editor, Positive-Feedback.com
    ________________________________________

    -Zellaton Plural Evo speakers
    -Goldmund Telos 300 stereo amp
    -Goldmund Mimesis 37S Nextgen preamplifier
    -Doshi EVO and Goldmund PH3.8 phonostage
    -VPI Vanquish direct-drive turntable
    -VPI 12-inch 3D Fat Boy dual pivot tonearm, VPI 12-inch 3D Fat Boy gimballed and SAT LM-12 arm
    -Lyra Atlas SL Lambda, Fuuga Mk. 2, vdh Colibri Master Signature, MutechHayabusa, MOFI Master Tracker, Sumiko Songbird cartridges
    -Technics RS1506 with Flux Magnetic heads, Doshi V3.0 tape stage (balanced)
    -Assorted cables including Transparent XL Gen. 6, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble Power Cords
    -Accessories including Stillpoint Aperture panels, Cathedral Sound panels, Furutech NCF Nano AC receptacles; Silver Circle Tchaik 6 PLC, Symposium ISIS and SRA Craz 3 racks, Audiodharma Cable Cooker, Symposium Ultra and assorted SRA OHIO Class 2.1+ platforms.

    Comment


    • #3
      The other issue for is, being there is a difference, is it worth it? For example, most DSD files/albums available for purchase are available as a vinyl LP release as well. I would rather buy a record any day of the week (assuming you're also into analog). I guess if you have a hi-rez streaming process, as Tidal is proposing in the coming months, then this would make it more worth while. But from a strictly purchasing standpoint, I'm am ok with PCM files and ALAC, FLAC, or WAV files, which most of my collection is anyways. Most of the artists or albums I listen to will never be available in DSD, which is important for me to consider. Digital has always been a risky unstable endeavor since it there no 100% gold standard in the audio industry and among audio manufacturers. Nothing seems to be future proof, unless you're ok with PCM files. "Higher Higher Rez" files will probably replace "High Rez" files, and so on. Built in Tidal and other streaming options may also impact this. How to spread the money around is becoming harder and harder. I still have to add a second arm my VPI Avenger for mono down the road too. The audio world is changing very rapidly over the past year and it doesn't seem to be slowing down. Look at how many products VPI has recently come out with to compete in the industry. It is really hard to keep it.

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      • #4
        Now may need Hi-Rez Headphones for Hi-Rez audio now too? Does it ever end? http://www.whathifi.com/advice/what-...ampaign=buffer

        Comment


        • #5
          John Atkinson alluded to,the existence of this meta-analysis in Stereophile back in January (I think) after he heard it presented at the AES convention in Oct 2015. Note that there is no new research presented, this is a meta-analysis (Wikipedia for those who don't know what this is) of previously published information. For me the take home message is that if the quality of reproduced sound matters to you, then hi-res PCM or DSD is preferable to RBCD or lower bit-rate digital formats. As most of us have experienced in many sensory areas, once you have noticed a difference that matters to you, it will only become more noticeable (and probably annoying) with continued exposure. Coffee, anyone (Myles)?
          Tascam BR-20
          Modwright Oppo 205 full tube mod w/LPS
          Euphony Summus server, EtherRegen, HDPLEX LPS
          MSB Discrete DAC (dual PS, ISLPro, balanced out)
          Pass Labs INT60
          Daedalus Audio Apollo 11’s
          REL S3 (Kimber Kable connection)
          Daedalus/Wywires, Audioquest, Acoustic Zen, DH cables
          Torus IS5
          Stillpoints and IsoPods, Tube Traps, GIK

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          • #6
            For pcm it's not always hi rez to be great I own some Redbook that is reference material.for me . Now typical hirez if real is better . So myles the real part should precede the question as to what is better . If pcm Redbook and same stuff hi rez pcm beats it . The sound is less shrill or a cleaner symbol . A voice that moves you more. Nw while dsd is different it may not be better to all . But the best digital I own is tape transfer to dsd . Next as my digital dac gets better pcm approaches dsd . It may not be there but it's not pcm anymore . A simple different from.pcm to dsd is pcm has bite meaning it snaps like a snare drum does . Where dsd is dynamic but remains Smooth like your best analog rigs do .
            Gus skinus to me hts the nail perfectly . Now attention is true to me . But mood ,lights , drugs kidding all effect this greatly . I think a lot of money is spent on power cords that improves the mind maybe not the sound . My Regens make me feel thus way . Is it real ??? To my mind yes , tubed ,interconnects are far more conclusive though . I I've your posts myles really thought proviking . Please accept my posts as just my view and in no way do mean I kkw better than anyone here or elsewhere .
            analog stuff.
            otari mtr 10 2 track 1/4 made new by soren
            otari mtr 10 2 track 1/4 1/2 combo made new by soren
            sota sapphire used eminent tech ver 2 arm
            new sota nova table has magnetic levitation platter and full speed control and latest motor same arm as above
            thorens td124 sme ver 2 arm
            thorens td125 sme ver 2 arm
            kenwood direct drive sme ver 2 arm
            phono preamp Ml no 25 all re capped
            speakers cust infinity IRS V , new caps and LPS , magnets etc.
            mark levivson pre no 26 amps no 33
            digital three cust servers , win ser 2016 , AO
            Dacs lampi various

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            • #7
              I don't have a DAC that was designed to be killer for PCM. I have the Mytek Stereo 192 and there is simply no contest between DSD and PCM regardless of the PCM resolution.
              Micro Seiki SX-8000 table with flywheel, SME 3012R arm, SME 312S arm, Lyra Etna SL and Dynavector XV-1S cartridges, ARC Ref 3 phono stage, Otari MX-55 tape deck, Ampex 350 repros, Roon Nucleus Plus server, PS Audio DSJ DAC, ARC Ref 6 pre, ARC Ref 75 amp, JBL 4345 speakers, and Def Tech Ref subs.

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              • #8
                I owned your dac for years . It was not bad Pam but yes there is better . But with my 6K server it did sound good finally lol . I sold it a few months back
                analog stuff.
                otari mtr 10 2 track 1/4 made new by soren
                otari mtr 10 2 track 1/4 1/2 combo made new by soren
                sota sapphire used eminent tech ver 2 arm
                new sota nova table has magnetic levitation platter and full speed control and latest motor same arm as above
                thorens td124 sme ver 2 arm
                thorens td125 sme ver 2 arm
                kenwood direct drive sme ver 2 arm
                phono preamp Ml no 25 all re capped
                speakers cust infinity IRS V , new caps and LPS , magnets etc.
                mark levivson pre no 26 amps no 33
                digital three cust servers , win ser 2016 , AO
                Dacs lampi various

                Comment

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