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A New Method for the Design of Crossover Filters
A new method is presented for the design and evaluation of loudspeaker crossover filters. The desired system characteristic can be prescribed by a (complex) acoustic transfer function rather than an electrical one only. It may be derived from conventional filters or based on a measured filter from a reference (favorable) system. Double blind listening tests are performed to verify subjectively the similarity between the reference system and its experimental counterpart. The drivers of the experimental loudspeaker are preceded by digital filters, enabling the limitation of several different favorable loudspeakers. Multidimensional scaling techniques are applied to represent the results of the listening tests. These results affirm the strength of the design method.
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