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Posted to sci.physics,sci.optics,rec.audio.tech
Don Pearce[_3_] Don Pearce[_3_] is offline
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Default audio telescope?

On Wed, 20 Apr 2011 19:48:46 -0700 (PDT), RichD
wrote:

This may be a dumb question, I never studied acoustics....

If you look into the wrong end of a telescope,
everything looks reduced, 'anti-magnified'.
Is there anything analogous acoustically?

In both cases, the phenomena is described
by wave equations -


It is completely analogous. A telescope makes things look closer. A
directional microphone makes things sound closer.

If you look through a telescope the wrong way, things look further
away. If you point a directional microphone the wrong way, things
sound further away.

d