Home Speaker Asylum

General speaker questions for audio and home theater.

Where are the data to prove listeners could hear a difference with and w/o the ultra high frequencies?

The many test biases to "encourage" high frequency audibility:
-All the subjects were under 35 years old.
-Many were women.
-The Indonesian music had an unusual amount of high frequencies.
-Brain measurements were considered a proxy for "hearing"
-No one had to prove he/she could really hear a difference before stating a preference for music with and without the ultra high frequencies. (Beyond that complaint, the subjective evaluation conclusion didn't seem to follow from the data -- you covered that well in your post)

I just don't see how this study could support a decision to buy a super tweeter.

I mentioned FM radio in my prior post because there are no frequencies over 15kHz. ... meaning that a small amount of sound energy is eliminated for broadcasta (this didn't read as clearly as it should have) ... yet that fact NEVER seems to be mentioned among the many complaints about FM radio sound quality (even complaints by golden ears who think every wire sounds different).

The best sound quality I have ever heard from a stereo was from a Redbook CD with no output over 20kHz. But then I can't hear 15kHz. anymore!
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Richard BassNut Greene
Subjective Audiophile 2007


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