Broad sound field loudspeaker system

摘要

A sound system processor for converting left and right channel signals from an audio source into composite left and right signals and employing at least one low and high pass filters, a plurality of sum processors, and at least one difference processor so as to create at least two or more composite signals for delivery to speaker drivers to generate a broad sound field from a compact multi-speaker sound system source.

主权项

1. A sound system processor configured to enhance the quality of sound produced by reducing the perception of point-source sound generation, the sound system processor configured to process left and right signals generated by an audio source to generate output to a plurality of speakers, the sound system processor comprising:
a first sum processor configured to process (i) the left signal from the audio source and (ii) the right signal from the audio source, where the output of the sum processor is a composite left plus right signal; a high pass filter configured to process (i) the left signal from the audio source and (ii) the right signal from the audio source, where the output is a high pass left signal and a high pass right signal; a low pass filter configured to take the composite left plus right signal and generate a composite low pass filter left plus right signal; a second sum processor configured to combine the high pass left signal with the high pass right signal so as to generate a composite high pass left plus right center signal; a difference processor configured to subtract one from the other of the high pass left signal and the high pass right signal so as to generate a first side signal and a second side signal; a third sum processor configured to combine the composite low pass filter left plus right signal with the first side signal so as to generate a composite left signal for delivery to a first speaker driver; a fourth sum processor configured to combine the composite low pass filter left plus right signal with the composite high pass left plus right signal so as to generate a composite left plus right center signal for delivery to a second speaker driver; and a fifth sum processor configured to combine the composite low pass filter left plus right signal with the second side signal so as to generate a composite right signal for delivery to a third speaker driver.