[Jerry Avins]

Radium wrote:
On Aug 19, 5:55 pm, Jerry Avins wrote:

...

Ir color differentiation. Or both.

Huh?

Typo: Or color differentiation. Or both.

The above device inputs the electrical signals generated by an
attached microphone. These electric signals are AC and represent the
sound in "electronic" form. Sound with a higher-frequency will
generate a faster-alternating current than sound with a lower-
frequency. A louder sound will generate an alternating-current with a
bigger peak-to-peak wattage than a softer soft.

All true. How to you record it with no moving parts?

Other than the microphone [obviously], why does there need to be any
moving parts? If a digital audio device can play audio back without
any moving parts, why can't an analog audio device be designed to do
the same?

Describe a motion-free process of recording and playing back. Cutting
grooves on a disk or magnetizing a moving tape both involve motion.

The device below is *not* analog. It uses sampling so its digital:

http://www.winbond-usa.com/mambo/content/view/36/140/

I'm curious to why there are no purely-analog devices which can
record, store, and playback electric audio signals [AC currents at
least 20 Hz but no more than 20,000 Hz] without having moving parts.
Most of those voice recorders that use chips [i.e. solid-state] are
digital. Analog voice recorders, OTOH, use cassettes [an example of
"moving parts"].

It's this simple: nobody has invented a way. I doubt than anyone ever
will. If you know how, communicate with me privately. With your idea and
my ability to bring it to fruition, we'll both get rich. A motion-free
method for printing text would also be a money maker.

Jerry
--
Engineering is the art of making what you want from things you can get.
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