19 Nov
2017
19 Nov
'17
1:33 p.m.
On Sun, 19 Nov 2017 13:10:24 +0100, David Kastrup wrote:
Fons Adriaensen
<fons-dDzkXPnfpdzhj6bIAHgUAw(a)public.gmane.org> writes:
You could use presets for some parameters of the EQ and only change the
desired parameters of the EQ.
Indeed, and that basically means there is no
point in 'emulating'
those filters.
Take a for example a second order parametric section. If it has
controls for center frequency, bandwidth and gain then it can
generate *all* frequency responses of that type (within the range of
its controls).
Correct.
There or no more free parameters given the order
and the general
shape of the frequency response.
In other words, any such filter can do whatever any other can.
Correct. The problem is _exactly_ that it can do whatever any other
can and that you have far too many free parameters to get under
control. A few distinctly different good choices in practice lead to
better results, particularly given time constraints, than a full
continuum of every available choice.
The continuum is what tool builders can work best with. But the actual
use cases want ready-made tools.