A class of crossover systems is described which produce null responses in their high-pass and low-pass outputs at frequencies close to the transition crossover frequency. As a result, both outputs have a high initial rate of attentuation in their stopbands, while the sum of their output has a flat all-pass response. When the nulls are moved to very high and low frequencies, the transfer functions degenerate into Butterworth functions for odd order, and into Linkwitz-Riley functions, for even order. Active and passive realization are presented. The work is the subject of a patent application.
(See document for exact affiliation information.)
https://aes2.org/publications/elibrary-page/?id=12050
(1090KB)
Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member Join the AES. If you need to check your member status, login to the Member Portal.
