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Consistent interface for filter effects
Posted: Fri Aug 29, 2014 3:14 pm
by Paul L
For High and Lowpass filter dialogs, the frequency input field is not first in tab order.
For notch filter, it is (which I find more convenient personally).
Would it be nicer to make them consistent?
It's a simple matter of Nyquist programming of course, so I can easily do it for myself if I prefer that.
Re: Consistent interface for filter effects
Posted: Fri Aug 29, 2014 6:02 pm
by Robert J. H.
Paul L wrote:For High and Lowpass filter dialogs, the frequency input field is not first in tab order.
For notch filter, it is (which I find more convenient personally).
Would it be nicer to make them consistent?
It's a simple matter of Nyquist programming of course, so I can easily do it for myself if I prefer that.
Those are not the same filters.
The Notch filter is of second order only. Hp and Lp go up to order 8 and the first field expresses that.
Re: Consistent interface for filter effects
Posted: Fri Aug 29, 2014 9:16 pm
by Paul L
Robert J. H. wrote:
Those are not the same filters.
The Notch filter is of second order only. Hp and Lp go up to order 8 and the first field expresses that.
Sure, but each has a frequency slider and there is inconsistency in the user interface. Most users don't care about the math, and usually I don't either.
Re: Consistent interface for filter effects
Posted: Fri Aug 29, 2014 10:59 pm
by Robert J. H.
Paul L wrote:Robert J. H. wrote:
Those are not the same filters.
The Notch filter is of second order only. Hp and Lp go up to order 8 and the first field expresses that.
Sure, but each has a frequency slider and there is inconsistency in the user interface. Most users don't care about the math, and usually I don't either.
It's not about maths. It's about foing down in the decision tree:
- What type?
(only Butterworth available)
- what sub-type?
(via effect menu, Low-Pass, High-Pass, Band-Pass, Notch...
The shelf filter has HS and LS as first choice in the GUI)
- What order
(Only available for Hp and Lp)
- What cut-off frequency?
(The sample rate is given)
- How much ripple?
(Chebichev only)
- What Gain?
(only for shelf/peaking EQ filters)
- What Q-factor?
(or bandwidth or slope, falls away for cascaded filters higher than order 2)
The inconsistency gets worse if you enable the classic filters in Audacity, the cut-off frequency is the very last input control.
Apart from anything else, the users are now perhaps to familiar with the HP and LP layout and wouldn't appreciate a change.