Originally Posted by Chu Gai
Not trying to be a dick here machani, but if you're going to place credence in some of the published links, then somehow you've got to be able to appreciate the need for a degree of rigorousness. This ain't about you being right or wrong with your findings as they stand but it's about seeing how they correlate once you've been a bit more careful. No harm, no foul. Just a matter of further work is required. You take care now.
The listening tests I've performed may not be sufficient for a scientific journal, but they were reasonably rigorous and were more than conclusive to me that there can be more than subtle differences in soundstage between CDPs.
In any case, I will take your suggestion and add both a SPL meter and a VOM in my arsenal, as they are bound to help in my tweaking. (I doubt, though, that there is any instrument that can measure soundstage).
BTW, what did that Onkyo cost up there?
I got it online for $479 from B&H Photo Video. I could not find a local dealer that sold it.
Originally Posted by scientest
I just skimmed this thread so I may have missed it but there seems to be a basic first step that is being ignored: machani, have you had you're hearing tested? Have you ever participated in a hearing test that checked for your ability to detect spatial information in the first place?
My hearing is perfectly normal as far as I know. I have scored well in some online hearing tests ((http://www.digital-recordings.com/
)), albeit the test tones were in the range 250Hz to 8KHz.
You seem to be coming around to the fact that volume also plays a role but it's equally if not more important.
To be clear, I said that once the volume was at a "medium-high" listening level the soundstage "stabilizes" and the image positions do not change. At this volume level, a small amout of variation in the volume knob (+/- 15%) did not affect the soundstage.
I never said that volume did not play a role in sound localization in an audio set up. It most definitely does. Of course, if you turn the volume dial way up everything will sound "bigger", not necessarily more distinct, and beyond a certain point may destroy the soundstage as other interactions are emphasized.
Originally Posted by QueueCumber
I always thought everyone could hear very well three dimensionally until I had one particular friend over and he couldn't hear any depth to the soundstage, just a flat image. It never crossed my mind that some people might be dimensionally challenged auditory-wise until that day. All I could think was... God, that would really suck. Then again, I guess I wouldn't really know it until someone pointed it out, and I likely wouldn't be as into music as I am today if I didn't hear a lot of depth to the soundfield.
I wonder if there is a correlation between auditory depth perception and an interest in playing music and listening to music (also, which came first, the chicken or the egg). I know there is a connection between the O'Connor music related aptitudes and an interest in the music field. Both can facilitate each other before a certain age, and then the aptitudes continue to increase the person's appreciation of music after the teenage years while aptitude development stops at around age 15 or so with one aptitude and even earlier with others.
I am sure that "training" does improve one's hearing abilities. The Scientific American published some studies a couple of years ago where they found the brain of a musician "rewires" itself over time. And trained students were able to distinguish and remember complex musical passages better than untrained ones.
From what I've been reading, spatial hearing is "hard wired" into the brains of mammals. It probably took billions of years to evolve. The paper I quoted earlier stated that "ITD processing requires far better resolution (10-20 μs) than any other neural process ".
I don't claim to be a Golden Eared Audiophile, nor do I claim to have any special hearing abilities. But, IMO, both the recording AND the system have to be highly resolving, in order to produce the 3D holographic sounstage I have been talking about. I recently had a friend over who was convinced I had hidden speakers in the walls and ceilings. (I was playing Dire Staits live version of "Your latest trick", from their "Best of/Sultans of Swing" CD/HDCD).