[net.audio] 200 khz and 201 khz

keithe@teklabs.UUCP (Keith Ericson) (12/02/83)

So you put a 200 kHz tone and a 201 kHz tone into you tweeter and you
claim you can hear something...?(!)

First of all, I would guess that 200/201 kHz tones will bounce right
out of the immitance presented by the tweeters and (virtually) NONE of
that energy will get converted to acoustic energy.

Secondly, the distortion products generated by the ELECTRONICS will
probably generate the 1kHz tone for you, even if your ear doesn't. This
assumes that the 200/201 kHz makes it past the input stage of the power
amp in the first place.

To test your hypothesis you need TWO separate channels, and probably
something other than hi-fi tweeters as transducers. Put 200 kHz into
transducer 1, and 201 kHz into transducer 2; let the acoustic medium -
air - be the combining device, and see if you can hear a 1 kHz tone...

Let us know what you find out.

keith ericson at teklabs