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US 5,206,913 AGranted
Method and apparatus for logic controlled microphone equalization
AssigneeLectrosonics, Inc.
InventorTravis M. Sims
Life of this patent
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Abstract
A sound system microphone equalization apparatus and method comprising a plurality of filters programmable by a microprocessor. User interfaces permit adjustment for each microphone channel of the parameters of the three notch filters, and four tone control filters in the filter network.
Claims29
Apparatus for equalizing a microphone channel in a sound system comprising:
- means for simultaneously providing an audio signal to a filter network and a logic input signal responsive only to an on-off state of said microphone channel to a microprocessor;
- means for selectively filtering the audio signal based solely upon the logic input signal provided to said microprocessor;
- and
- wherein said means for selectively filtering the audio signal further comprises a combination of preprogrammed filters preset by a user.
1 more element
A method of equalizing a microphone channel in a sound system comprising the steps of:
- a) providing an audio signal to a filter network while simultaneously providing a logic input signal responsive only to an on-off state of said microphone channel to a microprocessor;
- and
- b) selectively filtering the audio signal based solely upon the logic input signal provided to the microprocessor;
- and
- wherein the step of selectively filtering the audio signal further comprises the step of providing a combination of preprogrammed filters preset by a user.
2 more elements
Apparatus for equalizing multiple microphones in a sound system comprising:
- means for connecting a plurality of microphones to automatic audio mixer means;
- means for providing audio signals from said automatic audio mixer means;
- means for providing logic signals from said automatic audio mixer means;
- means for amplifying and coupling said audio signals to a filter network;
- means for coupling logic input signals, said logic input signals responsive only to an on-off state of each of said plurality of microphones to a microprocessor;
- means for selectively filtering said audio signals based solely upon said logic input signals;
- and
- means for amplifying and coupling said filtered audio signals to loudspeaker means;
- wherein said means for selectively filtering said audio signals further comprises a combination of preprogrammed filters preset by a user.
6 more elements
A method of equalizing multiple microphone channels in a sound system comprising the steps of:
- a) connecting a plurality of microphones to an automatic audio mixer;
- b) providing audio signals from the automatic audio mixer;
- c) providing logic signals from the automatic audio mixer;
- d) simplifying and coupling the audio signals to a filter network;
- e) providing a logic input signal responsive only to an on-off state of each of the plurality of microphones selectively filtering the audio signals based solely upon the logic input signals coupled to the microprocessor;
- and
- f) amplifying and coupling the filtered audio signals to loudspeakers;
- wherein the step of selectively filtering the audio signals further comprises the step of providing a combination of preprogrammed filters preset by a user.
5 more elements
Dependencies are inferred from the claim text.