Electrical audio signal processing systems and devices – Binaural and stereophonic – Broadcast or multiplex stereo
Patent
1989-09-13
1990-08-07
Ng, Jin F.
Electrical audio signal processing systems and devices
Binaural and stereophonic
Broadcast or multiplex stereo
381 10, H04H 500
Patent
active
049474316
ABSTRACT:
A circuit is provided which gauges the amount of significant high-frequency spectral energy in the very recent history of the program material and ignores the effects of short noise bursts and other transients associated with FM reception in the moving vehicle. The circuit provides an output voltage which can be used to adjust the attack characteristics of an audio processor.
REFERENCES:
patent: 3823268 (1974-07-01), Modafferi
Anderson Fred J.
Manlove Gregory J.
Marrah Jeffrey J.
Reprogle Matthew C.
Stroud Richard S.
Delco Electronics Corporation
Duke Albert F.
McGeary III M. Nelson
Ng Jin F.
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