audio telescope?
On Tue, 26 Apr 2011 21:14:33 -0400, Randy Yates wrote:
On 04/26/2011 02:44 PM, Helpful person wrote:
On Apr 26, 9:53 am, Randy wrote:
Rich,
The common telescope is a device that is "bidirectional", i.e., it
"processes" light both ways, and either end can be used as receiver or
transmitter.
"Audio telescopes" are more likely to operate electronically and are
thus "unidirectional," so you don't have the ability to reverse input
and output function.
--
Not true. Neither the receiver (compare with camera) nor the audio
source (compare with illumination) are part of the telescope.
You're right: "receiver" and "transmitter" were the wrong terms.
Substitute "input" and "output," respectively.
However, this was a terminology issue; the basic point was sound (no pun
intended).
Indeed earlier posts in this thread concerned the refraction of sound.
Sure, just as with an optical telescope one can invert such apparatus,
i.e. "reverse its inputs and outputs", with about the result one might
expect, just as one can do with apparatus which focuses sound by
reflecting it.
Not sure why you'd do it, having peered through the objective lens of a
telescope before.... [grin]
-- RLW
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