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In Reply to: RE: Hifitommy... posted by kerr on November 11, 2016 at 07:11:46
We don't know whether the added variable is helpful or harmful. All we know is that adding the visual changes the result.
Here's a true anecdote from my college days:
There was a life size sculpture of a human male figure in the area where I used to walk my Malamute. My dog would bark and growl at the sculpture, thinking that it was a threat. Though I never tried it, I'm sure that my dog would not have barked had he been blindfolded. Was he a better watch dog without the blindfold?
Follow Ups:
> There was a life size sculpture of a human male figure in the area where I used to walk my Malamute. My dog would bark and growl at the sculpture, thinking that it was a threat. Though I never tried it, I'm sure that my dog would not have barked had he been blindfolded. Was he a better watch dog without the blindfold? <
Excellent story - and I do now understand... I hope!
The answer, I think, is that sighted testing overinflates differences, while blind testing deflates them. Neither is terribly reliable, but unless one wants to blindfold oneself repeatedly, we go with sighted. And if the statue were actually a human intent on doing harm, sans blindfold would be best. Your dog took a "better safe than sorry" approach which in my mind made him an excellent watchdog! :)
obviously, animals and humans react to visuals vide the cat videos where someone places a cucumber behind the cat that is eating and they go frantic upon seeing it. same for the dog and the statue.
...regards...tr
But if you do it with extensive tests and with correlation to objective measurements as Floyd Toole did over decades it becomes a very useful tool to go along with other tests. In fact Toole claims that doing both types of tests he's come up with over 95% certainty of predicting an excellent speaker.
"But if you do it with extensive tests and with correlation to objective measurements as Floyd Toole did over decades it becomes a very useful tool to go along with other tests. In fact Toole claims that doing both types of tests he's come up with over 95% certainty of predicting an excellent speaker. "
Here's a video where Toole discusses this idea. The relevant discussion starts at 21 minutes 35 seconds. I can't seem to make that start time work with the youtube video embedding feature, so you'll need to fast-forward it manually to that point. Or you can use this link to go directly to the video on youtube at the right start time.
Floyd worked out which loudspeaker measurements to perform (the so-called "spinorama"), and I believe it was Todd Welti who figured out how to process the data in such a way as to give a figure of merit having a high correlation with listener preference on double-blind listening tests. There's some more discussion and links in this post .
But Infinity failed to provide parts support and left owners holding the bag (their bags)... Ouch!
nt
Toole was VP of engineering.
now THERE is a visual.
...regards...tr
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