I have never heard these terms before ... time domain ... and frequency domain. Can you point to some website or article so that I can read up on them?
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Mathematical Convolution is one method of determining the design of digital filters, whether they are Finite or Infinite Impulse Response (FIR or IIR) models. Convolution, which can be relatively as simple as applying a Fast Fourier Transform (FFT) or as complex as Calculus, can be applied to the time domain or the frequency domain. It's been too long for me to remember all that I've forgotten, so here's a link for anyone to peruse: