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Perception of Pace/Rhythm/Timing (PRaT) -- genetic?
hollowman
post Jul 4 2011, 16:24
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A somewhat "controversial" topic in audio gear subjective reviewing is the reproduction of Pace/Rhythm/Timing, sometimes abbreviated PRaT. (Sometimes, PRAT with a cap. 'A' may denote A=acceleration). The topic also includes an interdependent subjective metric, dynamics.

Perhaps the seminal introduction to the phenomenon is the Nov. 1992 article in Stereophile, Pace, Rhythm, & Dynamics by Martin Colloms . I noted that this topic is "controversial" in that it not often reported in gear/equipment reviews -- especially in forum- or message-board-based reviews ... where most folks stick to the common (and, IMO, repetitive) BMTS (bass, mids, treble, soundstage). From there, some may additionally describe, e.g., a headphone's 'dynamic' or 'speed' qualities. But when asked to comment on PRaT, the same reviewer responds with puzzlement, smug ridicule, or ignorance.

Pace/Rhythm/Timing -- or PRaT -- is something I'm particularly sensitive too. It is one of the first attributes that I notice the presence or absence of in audio gear, like headphones, all else held equal. I even notice it in slow music, like adagio or lento movements (the Colloms article above goes into this a bit).

Because of the apparent "underreporting" of the "PRaT" phenomenon as important audiological subjective metrics -- and even some hostility as to its importance or even its existence -- I'm wondering how much its perception is genetic. This may be like genetic sensitivity to perfect pitch:
http://perfectpitch.ucsf.edu/study/
Or, more simply, the PTC genetic bitterness test from high-school biology class?

This post has been edited by hollowman: Jul 4 2011, 16:42
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AndyH-ha
post Jul 5 2011, 07:26
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Perhaps the inclination to believe in such things is genetic.
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hollowman
post Jul 5 2011, 09:37
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QUOTE (AndyH-ha @ Jul 4 2011, 23:26) *
Perhaps the inclination to believe in such things is genetic.
Or perhaps the genetic inclination to gang-up-attack -- and with quick, frustrated kraut-like diatribes, ad hominum remarks, etc -- new and potentially important issues as opposed to more thought-out remarks (several above --- thx!) or pointing to URL link to, say, peer-reviewed, double-blind-controlled counter-evidence.

Example of a valid counter argument that requires little supporting evidence: PRaT is simply a matter of personal taste .... that one genetically (or via early nurturing or both the complex and interdependent dynamic of nature + nurture) simply LIKES music with "better" or more-pronounced pace/rhythm? This does not address why certain gear has more/less PRaT ... and I posed the orig. query pre-thought-thru many of these counter-arguments.

All digression aside ... the "pet theory" from the OP is most likely off-track. But it has been reported in various audio forums and circles -- as well as the usual, market-serving commercial press -- often enough to deserve some scrutiny.

This post has been edited by hollowman: Jul 5 2011, 10:07
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hollowman
post Jul 5 2011, 13:17
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QUOTE (hollowman @ Jul 5 2011, 01:37) *
(several above --- thx!) or pointing to URL link to, say, peer-reviewed, double-blind-controlled counter-evidence.

Example of a valid counter argument that requires little supporting evidence: ....
Here's one more bullet for your pea shooter ... Accuse me (hollowman) as Appealing to consequences
http://en.wikipedia.org/wiki/Appeal_to_consequences
Or, hollowman you're "Pigeonholing" ... you're http://en.wikipedia.org/wiki/Pigeonholing

I've dug into the issue a bit further and found reporting of it -- using slightly diff. semantics -- not quite as uncommon as I believed. To wit: this info-graphic equipment review style used in the no-longer-pub'd UK audio mag Sonic Boom:

Fig. 1: Sonic Boom’s circular quality plot. Shown is their finding for the Adcom GFA-555 II power amplifier.
QUOTE
Looking like a microphone’s polar response (see fig.1), the circle is segmented into wedges, with concentric rings indicating levels. Used in conjunction with a lengthy explanatory breakdown of the categories, the graph creates what the magazine calls “Sound Shapes,” with examples to show what’s good and bad. I assume that any product achieving the largest possible perfect circle would be a perfect performer. Among the points on the outer perimeter are “Presence’ “Rhythmic Coherence,” “Tonal Palette,” “Intimacy,” “Spatial Coherence,” and “Resolution” as primaries, with inner markings for categories including “Weight,” “Dynamic Range,” “Staging,” “Decay,” and others. If used with care, it produces a cleverly realized picture of the performance, as fascinating as the overhead drawings of soundstage dimensions David Wilson used to produce when he was reviewing for The Abso!ute Sound. If Gregory can develop this further, he could be onto some thing much more useful when used in con junction with a review than conventional specifications have been in the past.


This post has been edited by hollowman: Jul 5 2011, 13:25
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dhromed
post Jul 5 2011, 16:22
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QUOTE (hollowman @ Jul 5 2011, 14:17) *
Fig. 1: Sonic Boom’s circular quality plot. Shown is their finding for the Adcom GFA-555 II power amplifier.


What a fantastically arbitrary arrangement of words and lines!
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Posts in this topic
- hollowman   Perception of Pace/Rhythm/Timing (PRaT) -- genetic?   Jul 4 2011, 16:24
- - greynol   QUOTE (hollowman @ Jul 4 2011, 08:24) I...   Jul 4 2011, 16:43
|- - hollowman   QUOTE (greynol @ Jul 4 2011, 08:43) QUOTE...   Jul 5 2011, 09:11
- - Arnold B. Krueger   QUOTE (hollowman @ Jul 4 2011, 11:24) A s...   Jul 4 2011, 19:22
- - RobWansbeck   Many years after reading the first, 1978, edition ...   Jul 5 2011, 01:28
- - kraut   I find that the thread opener follows the usual au...   Jul 5 2011, 02:19
- - greynol   I truly hope this doesn't end up like it did w...   Jul 5 2011, 02:44
- - krabapple   QUOTE (hollowman @ Jul 4 2011, 11:24) I n...   Jul 5 2011, 03:20
|- - hollowman   QUOTE (krabapple @ Jul 4 2011, 19:20) [.....   Jul 5 2011, 08:48
|- - krabapple   QUOTE (hollowman @ Jul 5 2011, 03:48) QUO...   Jul 5 2011, 15:25
|- - hollowman   QUOTE (krabapple @ Jul 5 2011, 07:25) Wha...   Jul 8 2011, 13:44
|- - db1989   QUOTE (hollowman @ Jul 8 2011, 13:44) gre...   Jul 8 2011, 13:50
- - AndyH-ha   Perhaps the inclination to believe in such things ...   Jul 5 2011, 07:26
|- - Arnold B. Krueger   QUOTE (AndyH-ha @ Jul 5 2011, 02:26)...   Jul 5 2011, 09:20
|- - hollowman   QUOTE (AndyH-ha @ Jul 4 2011, 23:26)...   Jul 5 2011, 09:37
|- - hollowman   QUOTE (hollowman @ Jul 5 2011, 01:37) (se...   Jul 5 2011, 13:17
|- - dhromed   QUOTE (hollowman @ Jul 5 2011, 14:17) Fig...   Jul 5 2011, 16:22
|- - hlloyge   QUOTE (hollowman @ Jul 5 2011, 14:17) I...   Jul 5 2011, 18:22
- - Woodinville   Pace, rhythm and timing are all sensations that co...   Jul 5 2011, 08:09
|- - hollowman   QUOTE (Woodinville @ Jul 5 2011, 00:09) P...   Jul 5 2011, 08:59
|- - Woodinville   QUOTE (hollowman @ Jul 5 2011, 00:59) Not...   Jul 5 2011, 11:01
|- - hollowman   QUOTE (Woodinville @ Jul 5 2011, 03:01) Q...   Jul 5 2011, 11:54
|- - Soap   QUOTE (hollowman @ Jul 5 2011, 06:54) How...   Jul 5 2011, 12:18
|- - hollowman   QUOTE (Soap @ Jul 5 2011, 04:18) QUOTE (h...   Jul 5 2011, 14:05
|- - Soap   QUOTE (hollowman @ Jul 5 2011, 09:05) QUO...   Jul 5 2011, 14:14
- - DonP   We do get the occasional golden eared prat in here...   Jul 5 2011, 13:17
- - Soap   Mods, can you lock this thread already? OP (hollo...   Jul 5 2011, 13:58
- - kraut   QUOTE Extremely refreshing, Kraut Maybe it is ref...   Jul 5 2011, 15:51
- - drewfx   A simple, non-judgmental question: If a system ca...   Jul 5 2011, 16:42
|- - benski   QUOTE (drewfx @ Jul 5 2011, 11:42) A simp...   Jul 5 2011, 19:21
|- - drewfx   If these effects were audible, would you expect th...   Jul 5 2011, 19:38
||- - benski   QUOTE (drewfx @ Jul 5 2011, 14:38) If the...   Jul 5 2011, 19:51
|- - DonP   QUOTE (benski @ Jul 5 2011, 13:21) [ I...   Jul 5 2011, 21:43
||- - greynol   QUOTE (DonP @ Jul 5 2011, 13:43) fuzzily ...   Jul 5 2011, 22:31
||- - Woodinville   QUOTE (greynol @ Jul 5 2011, 14:31) This ...   Oct 16 2011, 05:02
||- - lbstyling   QUOTE (Woodinville @ Oct 16 2011, 04:02) ...   Jan 4 2012, 22:10
|- - Notat   QUOTE (benski @ Jul 5 2011, 12:21) I...   Jul 6 2011, 16:03
- - Soap   They should show up as measurable distortion, no?   Jul 5 2011, 19:46
|- - benski   QUOTE (Soap @ Jul 5 2011, 14:46) They sho...   Jul 5 2011, 19:53
- - drewfx   So then the devil's advocate argument is: 1. ...   Jul 5 2011, 20:18
- - greynol   QUOTE (hollowman @ Jul 5 2011, 01:11) It ...   Jul 5 2011, 21:16
|- - db1989   Having read a little of the Stereophile article li...   Jan 4 2012, 22:39
|- - disfrontman   QUOTE (db1989 @ Jan 4 2012, 16:39) QUOTE ...   Jan 5 2012, 03:29
- - knutinh   1. Find some discussion-forum with a clear profile...   Jul 6 2011, 07:23
- - Nick.C   Likes ^. (we need a like button for posts...... ...   Jul 6 2011, 08:22
- - WernerO   Perhaps time for a bit of history? The whole PRaT...   Jan 5 2012, 08:56


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