super tweeters

oh crumbs what have I started - lets not get carried away! ;-)

 

I used CoolEdit to generate the tones so I believe they were of equal power. However as I said my speakers have a 22KHz maximum range so its probably rolling off there.

Should I ask why so many of you are interested in how to kill people with your Hi-Fi setups?

 

Markus - I believe you're right.

 

"Always Right Member" is already taken, alas

 

Nearly always right member when it comes to spelling?

What about kwisatch hadderach? Whats the spelling for that? This is a test

 

... from a member so nice he had to name himself twice?

 

oh god, we've somehow managed to turn a thread on supertweeters into a thread on how to spelling the name of a fictional alien leader who rides worms for a living!

lol....

 

You mean in the Dune or in the Buffy context?

Anyway, I read Dune ages ago, the Muad'dib bit is one of the few details I remember, the Sasquatch thing I had to google.

 

Buffy? Is it in their too?

Dont tell me you have all the trek titbits in that mind somewhere?

 

I'm not into Trek nor Buffy. My current TV favourite is Monk.

 

It did seem surprising. You dont seem like a Buffy fan Monk?

 

Yet another US TV series, a bit like Columbo but with an obsessive-compulsive hero. If you don't have it yet in the UK, you have something to look forward to.

 

monk

hi markus,
monk is great by the way.
out on dvd as well in the uk.

when these conversations crop up i always look at the recording itself rather than the playback side of it.

the theorys always muddy the facts.

i think super tweeters are pretty much the same as a good tweeter.

after all its about phase accuracy and real harmonic accuracy over the recorded bandwidth.

 

The theories always muddy the facts?

I must remember that one!

 

Just the one paper? That's it? Any others?

It's an interesting paper - but the result has not been independently verified. There is quite a high liklihood that the was some fault in the experiment - for example Intermodulation Distortion.

Here's some later work that doesn't support your case and probably points to the root cause of Oohashi "results":

Detection threshold for tones above 22 kHz - Kiryu, Shogo; Ashihara, Kaoru - AES preprint 5401

Perceptual Discrimination of Very High Frequency Components in Musical Sound Recorded with a Newly Developed Wide Frequency Range Microphone - Ando, Akio; Hamasaki, Kimio; Nisiguchi, Toshiyuki; Ono, Kazuho - AES 6298.

D. Griesinger, Perception of mid frequency and high frequency intermodulation distortion in loudspeakers, and its relationship to high-definition audio , AES 24th International Conference, Banff, Alberta, Canada,

Your go....