Onhwy61,
It is true that one can implement some more sophisticated
filters in a digital implementation than would be practical
in analog. Your example re: ringing is a good one. One can
implement higher-order filters that have group delays tailored
to prevent ringing - which would be prohibitive for the
equivalent analog filter.
However, more and more I see the "hawking" of digital processing
as a panacea for all audio ills. DSP can side-step some of
the ills of analog circuits - but DSP has its own set of
problems which can be just as bad [ex. Gibb's phenomenon ]
unless those that implement the technology do it carefully.
Dr. Gregory Greenman
Physicist
It is true that one can implement some more sophisticated
filters in a digital implementation than would be practical
in analog. Your example re: ringing is a good one. One can
implement higher-order filters that have group delays tailored
to prevent ringing - which would be prohibitive for the
equivalent analog filter.
However, more and more I see the "hawking" of digital processing
as a panacea for all audio ills. DSP can side-step some of
the ills of analog circuits - but DSP has its own set of
problems which can be just as bad [ex. Gibb's phenomenon ]
unless those that implement the technology do it carefully.
Dr. Gregory Greenman
Physicist