Method and apparatus for digital filtering of audio signals
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United States of America Patent
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Mar 10, 1998
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N/A
app pub date -
Mar 25, 1996
filing date -
Mar 25, 1996
priority date (Note) -
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Abstract
The present invention provides an efficient audio equalization system in terms of the number of coefficients and taps of a digital filter. The processing efficiency of the system allows it to provide audio equalization with high resolution at low frequencies using a 1/20-th the number of coefficients and taps in equivalent prior art systems. The resulting reduction in cost makes it economical to incorporate the system in hi-fi systems, home theaters, automobiles, televisions, etc. providing significantly improved sound quality with little or no overall increase in cost of production.
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