Method and circuit for improving the polar response of a two-way

Details Method and circuit for improving the polar response of a two-way Method and circuit for improving the polar response of a two-way

1994-11-10

1998-07-21

Kuntz, Curtis

Electrical audio signal processing systems and devices

Including phase control

381156, H03G 500

Patent

active

057844747

ABSTRACT:
A method and correction circuit for improving and controlling the listening window and response of a two-way loudspeaker system utilizing a horn-loaded high frequency driver. The correction circuit includes adjustable active all-pass and band-pass filters, in a specific arrangement, coupled with conventional cross-over filters to achieve a maximally flat amplitude and phase response acoustically throughout a preferred listening window. A spectrum analyzer measures the near-field responses of the individual and combined transducers while adjustments are made. A phase shifting circuit is included in the low frequency channel which results in improved near-field to far-field response consistency and significantly improves the subjective characteristics of the high frequency horn.

REFERENCES:
patent: 4348549 (1982-09-01), Berlant
patent: 5046581 (1991-09-01), Mitchell
patent: 5185801 (1993-02-01), Meyer

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