What does a phaser really do?
As talked about, phaser results are reliant on all-pass filters. All-pass filter is a sort of filter that impacts the part of a sign with out altering its amplitude. Not like low-pass, high-pass, or band-pass filters, which alter the energy of sure frequencies, an all-pass filter permits all frequencies to move via at equal quantity however shifts their part by completely different quantities.
A phaser impact is constructed utilizing a number of all-pass filters in collection. In isolation all-pass filters aren’t audible, however when the unique dry sign is combined in and the filter cutoff frequency of the filters are modulated by an LFO, the interplay between the unique and phase-adjusted indicators creates phasing’s sweeping, swirling impact.
Let’s have a look at Phasis’ interface to see the most typical sorts of Phaser FX parameters.