Ralf11 Posted December 11, 2018 Share Posted December 11, 2018 Which aspects of or factors in sound quality have no measurements that correspond to them? Either cases where the measurements have not yet been made, or cases where the measurements cannot be made... counter example: frequency response possible example: "sense of space" or "real instruments playing in real space" Link to comment
Ralf11 Posted December 12, 2018 Author Share Posted December 12, 2018 7 hours ago, Em2016 said: True. But I also feel this discussion needs an expert Physiologist ... ahem... OTOH, you did not specify the type of physiologist Link to comment
Ralf11 Posted December 12, 2018 Author Share Posted December 12, 2018 No, I'm not. I do have an interest in sensory physiology however. There are 2 guys on here who would be closest to that, but I will let them drop by and post if they want. A further complication is that sensory- or neuro-physiology of the auditory system quickly get you involved in cognitive issues, so then you need a cognitive psychologist. Ultimately, it is all about fizziology anyway... Link to comment
Popular Post Ralf11 Posted December 14, 2018 Author Popular Post Share Posted December 14, 2018 I mostly agree, I'll claim that going into a shop and comparing different products is just another cut to winnow the herd (following reading reviews, and/or feature/spec. comparisons). I make the final decision in my own listening room with my other gear. A local shop lost a speaker sale to me last year when he told me there was no in-home trial. I appreciate his financial situation vis-a-vis that, but I'm not interested in subsidizing him - I'd rather subsidize the hard-working barista at the coffee shop. Teresa, Ryan Berry and mav52 3 Link to comment
Ralf11 Posted December 19, 2018 Author Share Posted December 19, 2018 2 examples of euphonic distortions: 1. slight fall in SPL vs. freq. sounds better to most listeners based on tests by JBL, et al. 2. even order distortion in amp stages (tho it is not clear to me that this has been rigorously tested, nor that it sounds better than no distortion at all) Link to comment
Ralf11 Posted December 19, 2018 Author Share Posted December 19, 2018 I posted some info re freq. response curves some time ago on this site. Not sure what your point is re even ordered distortion. However, that effect should not be confused with the Fletcher–Munson curves or their follow-on revisions. Link to comment
Ralf11 Posted December 20, 2018 Author Share Posted December 20, 2018 I have not seen any studies supporting your ideas. If you know of any, please post them. Link to comment
Ralf11 Posted December 20, 2018 Author Share Posted December 20, 2018 8 hours ago, mansr said: Musicians. I don't want those filthy beasts in my home - if they must be allowed in, at least they should use the side door. Link to comment
Ralf11 Posted December 20, 2018 Author Share Posted December 20, 2018 I agree we don't want a too warm sound - just slightly warm - say, a recent model Audio Research tube pre-amp, but not a really old CJ ultra-toaster warm pre-amp. I also agree with @jabbr 's points. And I see DSP in the speakers/room as providing that, or close to it. As for deliberately distorted sound, I deleted Lou Reed's metal Machine Music album as it was just too dissonant, not to mention annoying. I am also waiting for @gmgraves to get the wah-wah pedal tuned just right for his rap album. Link to comment
Ralf11 Posted December 21, 2018 Author Share Posted December 21, 2018 if a parasite lays eggs inside a host, but the eggs have not hatched yet... is that parasitism? that is my analogy to the DRM question Link to comment
Popular Post Ralf11 Posted December 21, 2018 Author Popular Post Share Posted December 21, 2018 Frank, you are the Deepak Chopra of audio mansr, AudioDoctor and crenca 1 2 Link to comment
Ralf11 Posted December 21, 2018 Author Share Posted December 21, 2018 8 hours ago, jabbr said: ...until we understand what is not adequately reproduced, then we cannot measure the difference between any actual system and an ideal reproduction system — the failing is not in the ability to measure but knowing what to measure. I have a voltmeter - what should I measure? Link to comment
Ralf11 Posted December 22, 2018 Author Share Posted December 22, 2018 can you make a vibrating string come out of small metal dome? Link to comment
Ralf11 Posted December 22, 2018 Author Share Posted December 22, 2018 not temperature or time Link to comment
Ralf11 Posted December 22, 2018 Author Share Posted December 22, 2018 6 hours ago, STC said: A mouth is about 4 inches wide, and that's where the vocal originates. the vocal originates from the vocal chords, and is funnel thru the mouth Teresa 1 Link to comment
Ralf11 Posted December 22, 2018 Author Share Posted December 22, 2018 2 hours ago, jabbr said: Good point, particularly if you are measuring hot vs cool jazz as well as syncopation charm, color and spin are the really hard things to measure - not to mention that big scalar value that's like... all over, man and lest anyone think that doesn't matter for music... I refer them to Francis Vincent Zappa and The One Big Note Link to comment
Ralf11 Posted December 22, 2018 Author Share Posted December 22, 2018 I will third, that Nelson Pass is both honest and forthright. I have an old Adcom... maybe should get a Threshold too? If I were to take time off from other things, I'd DIY one of his designs myself. Link to comment
Ralf11 Posted December 24, 2018 Author Share Posted December 24, 2018 just get some groovey USB cables that'll solve all your problems Link to comment
Ralf11 Posted December 24, 2018 Author Share Posted December 24, 2018 On 12/11/2018 at 12:11 PM, Ralf11 said: Which aspects of or factors in sound quality have no measurements that correspond to them? Either cases where the measurements have not yet been made, or cases where the measurements cannot be made... counter example: frequency response possible example: "sense of space" or "real instruments playing in real space" Yes, tho I phrased the question in the opposite way... Link to comment
Ralf11 Posted December 25, 2018 Author Share Posted December 25, 2018 23 minutes ago, fas42 said: Ummm, everything that makes or breaks an audio rig's sound is electrical No. In fact, the most important problems are mechanical, not electrical. Dome breakup, friction, pistonic movement, diffraction, etc. all related to speakers. Then there are the problems at the other end of the chain - again transducers. Link to comment
Ralf11 Posted December 25, 2018 Author Share Posted December 25, 2018 Yes, we can easily measure nV - I can even carry a very accurate data logger capable of that in a backpack and ski it deep into the mountains (or get grad. students to do so, more recently). The problem is more complicated than that however, and involves a lot of psycho-acoustics, besides sample rates and acoustics... Of course, no measurements or studies will ever convince the anti-vaxer like contingent... Link to comment
Ralf11 Posted December 25, 2018 Author Share Posted December 25, 2018 it isn't "wisdom" it is fact see also esl's post just above yours Link to comment
Ralf11 Posted December 25, 2018 Author Share Posted December 25, 2018 didn't JBL do some studies of flat vs. slightly rolled freq. response ("warm")? I have not seen the studies but have seen them referred to... Link to comment
Ralf11 Posted December 25, 2018 Author Share Posted December 25, 2018 Ah ok. I continue to wonder about the audibility of sharp transients... All the old freq. response of the human ear research was done on sinusoidal waves, usually(?) a single freq. at a time. we know that sensory systems in general are xlnt at comparisons, "edge detectors" type stuff for touch, visual, etc. And not so good at absolute measurements. So... A neurophysiologist might profitably explore this area. Link to comment
Ralf11 Posted December 25, 2018 Author Share Posted December 25, 2018 I wonder how many audiophiles need 2 semi-trucks to move their stereo? Link to comment
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