In practice, are almost all signals in DSP finally measured as a
voltage?
That is, even though the original may be sound pressure converted
through a carbon microphone to variations in current, or may be charge
on a CCD due to photons releasing electrons, in the end there is a
conversion to voltage and from that to the digital number?
I guess the question could also be put as: do all ADCs convert from
voltage?
Chris Bore
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BORES Signal Processing
www.bores.com
