"Erik Squires" wrote in message
ervers.com...
So, here's my question. If I digitize a 15 kHz signal, using a 44.1 kHz
sampling rate, I'm going to get about 3 samples / cycle.

Are the normal digital filters good enough to reproduce a 15 kHz singal
with
varying amplitude?

Deconstruct this signal to frequency domain and it won't be a pure 15 kHz.
There has to be another component imposed on the
15 kHz that "varies the amplitude".

ScottW