Electrical audio signal processing systems and devices – Including frequency control
Patent
1997-01-16
1998-05-26
Loomis, Paul
Electrical audio signal processing systems and devices
Including frequency control
381 56, H03G 500, H04R 2900
Patent
active
057579393
ABSTRACT:
Methods and apparatus are disclosed for demonstrating sound quality differences between two sound samples by negatively filtering a first of two signal samples and subsequently representing the negatively filtered signal sample as a first level of sound quality. The second signal sample is represented as a second level of sound quality, typically of higher quality than the first sound sample. The negative filtering is inverse to the enhancement to be demonstrated. In an exemplary embodiment of the invention, negative filtering techniques are used to demonstrate the differences between an "ordinary" voice sample and an "enhanced" voice sample to be broadcast over television or radio facilities. Negative filtering is limited to a selected frequency or range of frequencies such that there is a demonstrable difference in sound quality between the ordinary voice sample and the enhanced voice sample.
REFERENCES:
patent: 4511917 (1985-04-01), Kohler et al.
patent: 4955070 (1990-09-01), Welsh et al.
patent: 5228093 (1993-07-01), Agnello
patent: 5384856 (1995-01-01), Kyouno et al.
Begeja Lee
Mayer Mitchell S.
Pladek Robert B.
Loomis Paul
Lucent Technologies - Inc.
Mei Xu
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