[Jerry Avins]

Radium wrote:

...

Okay. So a digital video device with greater bit-resolution can allow
for more levels of luminance?

Ir color differentiation. Or both.
\
What is the video-equivalent of bit-resolution?

Bit resolution.

...

There is no analog-equivalent of sample-rate? Then what the limits the
highest frequency an analog audio device can encode?

The capabilities of the transmission and recording media.

What determines the highest frequency signal an analog solid-state
audio device can input without distortion?

Distortion, in the commonly used sense is immaterial. On a phonograph
disk, high frequencies are limited by the ability of the cutting stylus
to move rapidly, of the playback stylus to stay in the groove at high
acceleration, and of the microphone to capture the sound.

Analog solid-state audio device = a purely analog electronic device
that can record, store, playback, and process audio signals without
needing any moving parts.

Oh? Just what would the record consist of?

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? Even a microphone
has a moving diaphragm. You must like the taste of your foot. You keep
putting it in your mouth.

What mathematically determines the highest-frequency electric signal
such a device can intake without distortion?

Distortion (as the term is commonly meant unless otherwise qualified)
entails harmonics which have higher frequencies than that which is
distorted. Near a system's upper frequency limit, harmonic distortion is
impossible. There is no mathematical limit to an analog system's
frequency response; the limit is physical. One can understand purely
digital systems with mathematics alone. Analog systems are messier by
far. You actually have to understand how real-world things behave in
order to deal with them. Purely digital systems have relatively little
use. All of our senses are analog.

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