🚀 go-pugleaf

Howdy--

I was listening to a radio talk show the other day; some caller who
was speaking to the host uttered some offensive word, and the
host hit the button, which presumably made the show jump to "real
time" from the seven-minute delay it had previously been running
under. 

Apparently it takes some time for the delay to "charge up" again,
as the host would not take another call until the delay light lit
up again. My question: how do these things work? Are the electronics
necessary to incorporate such a thing very complex? Even with my
limited understanding of electronics theory, I can understand how
a delay might work if the signal was digital, but how is an
analog signal delayed? In order for the delay to "build up" to the
seven-second mark again, the signal must slowly be delayed from
0 to 7 seconds; where does this extra time come from so that it
is not noticeable? Does it in any way affect the frequency of the
original signal, i.e., a voice might be imperceptibly lower in
pitch?

Thanks for any info. Just curious.

kz


~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ken Zuroski
Department of English
Carnegie Mellon University
Pittsburgh, PA 15213 USA
kz08@cmu.edu
~~~~~~~~~~~~~~~~~~~~~~~~~~~