Listener fatigue: what does it really mean?


Okay, so I used to think that listener fatigue meant that your ears just kind of got tired from listening to speakers that were overly bright. I don't have a good understanding of the make up of an ear, but I believe there are muscles in an ear that, I guess, expand and contract while we listen to music and I figured that's what it meant to have listener fatigue. Now, I'm thinking that listener fatigue is maybe more than your ears just getting tired but actually, your whole body getting tired and feeling drained. I experienced this time and time again listening to my paradigm studio's. They are somewhat bright and provide quite a bit of detail in my oppinion, so I'm wondering if, since there was such a great amount of detail coming through, that it was physically draining because I'm sitting there analyzing everything that's coming through the speakers. I would wake up and first thing in the morning, grab a cup of coffee and start listening to music (my daily routine) and 20-30 minutes later start nodding off and I couldn't figure out what was going on. I've been sitting here this morning listening to my new vandersteen's for two hours and can't get enough. I feel like I could listen all day and that I'm almost energized from listening vs. drained.

Soooo, what are your oppinions about what listener fatigue is and why it's caused?
b_limo
"Possible sources could start with the quality of input materials (e.g. CDs or LPs)"

I used to think this was more of a factor in the past than I do these days. I really think system related issues are a much bigger factor, though I know a lot of people find modern "louder" recordings to be a source of fatigue. That is a likely category of recordings to cause listening fatigue, but I find many modern "louder" recordings to actually be quite good, only a small % blatantly fatiguing. I wonder if some are actually designed to grate on your nerves rather than happen to come out that way.
List of Possible Distortion Sources?

1. Comb filter effects

2. Tube microphonics

3. Cosmic microwave background radiation

4. Sunspot activity

5. Window vibration

6. Wall vibration

7. Floor vibration

8. Past Time coordinates embedded in recording

9. Directionality of wires, cables, fuses, etc.

10. Low pressure weather system
The Anstendig Institute has papers on this subject you might find helpful.

http://www.anstendig.org

check out the papers written under;

Vibrations: Natural and Mechanical

The body as a machine.

Our bodies are affected by the vibrational quality of our surroundings.

Hope this helps.
Agree with Csontos, it's the distortion. The problem is, even when you get rid of as much distortion as you can, there's still a great deal of distortion in the sound. We tend to assume that's what it's supposed to sound like, that any remaining distortion must be the fault of the recording. Pop Quiz: Where on Earth does all that remaining distortion come from?

"An ordinary man has no means of deliverance." - Old audiophile axiom