SPD - Subliminally Perceived Distortion

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I share Jack Caldwell's enthusiasm. I drive older cars, live in a rent controlled apartment, buy the cheapest cognac that I can 'enjoy', etc, in order to optimize my audio system, and to work in audio design. I don't know why anybody would want to criticize a person's interest in a subject, perhaps beyond the average. That is what it takes to make something 'special' and that is appreciated by some, perhaps not most here.
 
Spending your life savings on high end audio...

Audio seems to be a very peculiar industry. It has engineered itself a very comfortable corner of the commercial world, where price is inversely proportional to specification, and where its customers sometimes even know they are being sold a placebo, but fiercely fight against the wool being lifted from their eyes. How else could they fill their time?

The industry is 90% marketing, and driven by the spreading of 'memes', like cables having an effect on the sound, cables being directional, cables having to be be made of exotic materials, cables needing burning in. It's all good fun and very funny for people like me, but I personally know two people who don't have very much money and whose families most certainly suffer because of the husband's addiction - and it is not short of being an addiction like drugs or gambling. In other walks of life, consumer watchdogs exist to prevent people from being ripped off (even if willingly), but in audio anything goes.
 
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Interesting. I"m sitting here listening to "Morph the Cat" by Donald Fagen. Plenty of low end on this track. I can feel the bass in my feet. Is it getting there via the slab, the carpet or the air? Don't know, but it's there. But some notes more than others.

I was listening to "The Wall" on the weekend at Higher than normal levels doing power test (using a power meter to see how much power the amp was actually drawing from the mains). I was surprised to notice vibrations seemingly coming from the floor.

Our unit has a suspended concrete slab floor, carpeted, all walls (internal and external) are rendered concrete block. This really surprised me considering the solidity of the unit, and more importantly the fact that it was only my MTM's playing (dual 5" drivers each in separate 5L volumes) nearfield F3 of 90Hz.

Also they are not on the floor! they are about 1M off the floor, have spike feet and are sitting on top of my old 3 ways which are sitting on the floor.

I think the track I noticed this on was another brick in the wall part one, probably around the "Daddy what else did you leave for me" part.

Anyhow I know this is completely anecdotal, and I wouldn't have joined in if I hadn't noticed this on the weekend (perhaps there's some cosmic significance in that :rolleyes: ) but I thought since everyone was taking pot shots at SY I'd join in :D

Tony.
 
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You're not wrong about that SY! I suspect (but don't know) that there aren't any earthquake provisions in the building code here in Aus. It will only take one big one to change that though :fight:

The fact that we are in the centre of a continental plate is the main reason we are not prone to earthquakes, but it certainly doesn't mean a big one couldn't happen. You only have to consider how much damage was done by the 5.6 magnitude Newcastle quake in 1989 (I felt that one in Sydney around 150Km away) and it is pretty obvious that our building standards don't include earthquake provisioning! The scary thing is the unit I'm in is unusually strong! Most of the stuff in Sydney is pathetic....

anyway back on topic. I've thought for a long time that monitoring of brainwaves of "experienced/trained" listeners and trying to correlate these to subjective impressions would be a very interesting study to perform. It is bound to be prone to interpretation bias, but it might just uncover some interesting phenomena, and could lead to a better understanding of what we hear, what we think we hear, and what our brain simply makes up!

Tony.
 
OK, then you don't have a Humor Fairy there. Or you once did and she was clubbed to death by a shillelagh-wielding leprechaun.

edit:
May 8, 2010. A small earthquake shook West Clare on Thursday, marking the first time in recorded history such a seismic event had occurred.

Irish authorities confirmed that a “seismic event” measuring 2.7 on the Richter scale took place at 10.24 p.m. on Thursday.

As a former Californian, I can attest that a 2.7 is the earthquake equivalent of near beer.
 
OK, then you don't have a Humor Fairy there. Or you once did and she was clubbed to death by a shillelagh-wielding leprechaun.

edit:


As a former Californian, I can attest that a 2.7 is the earthquake equivalent of near beer.

Ah, SY please use emoticons to warn me, I'm doubled over here with laughter & it's dangerous to not give a warning. Your earthquake is bigger than mine jokes now :D!
 
2.7 is so wussy, they couldn't even call it an earthquake. It was a "seismic event." And the first in recorded history there. The ground there is apparently quite stable.

I've only been to Ireland once (Belfast), and any shaking of the ground we felt was attributed to political activity or our own consumption of local beverages.
 
As a former Californian, I can attest that a 2.7 is the earthquake equivalent of near beer.

2.7! Here we had a 4.8 and only the observant noticed. I was passing a truck at the time and it felt like wind blow by except it was after I was in front.

How could a normal human even notice a 2.7?

I have been in L.A. when the hotel had free magic fingers for everyone for a few minutes. (Also when they celebrated the police officers being found not guilty in the Rodney King case.)

(For those who did not visit a U.S. motel in the 60's "Magic Fingers" was offered as a coin operated whole king size bed vibrator. It was advertised as a massage machine to relieve the back stress of long distance driving. The operational time for your money was long enough for couples to share the experience. I just came of age too late for a first hand report of the supposed improvement.)
 
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