I'm trying get an audio signal from a high impedance source (guitar or mic) to an ADC.
Some casual research suggested that I should filter my signal before amplifying it.
My current mental design is: Source -> Buffer (optional depending on impedance) -> Butterworth filter -> Boost -> ADC.
Is this the "correct" way to design this circuit?
Does it make sense to throw in an RC filter (or a second active filter), e.g. before the ADC?