super tweeters

[anon_bb]

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

 

[Tenson]

this[/URL] in case anyone knows.

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?

 

[bottleneck]

Markus - I believe you're right.

 

[Markus S]

"Always Right Member" is already taken, alas

 

[anon_bb]

Nearly always right member when it comes to spelling?

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

 

[Markus S]

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

 

[Dynamic Turtle]

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....

 

[Markus S]

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.

 

[anon_bb]

Buffy? Is it in their too?

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

 

[Markus S]

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

 

[anon_bb]

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

 

[Markus S]

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.

 

[darrylfunk]

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.

 

[anon_bb]

The theories always muddy the facts?

I must remember that one!

 

[oedipus]

Try:

Oohashi et al - Inaudible High-Frequency Sounds Affect Brain Activity: Hypersonic Effect

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....