Microphone with associated amplifier
First Claim
1. A microphone with an associated amplifier, wherein the microphone and the associated amplifier have each a digital circuit connected together by cables such that the circuit for the microphone contains an electroacoustic transducer, two preamplifiers which differ in value of gain, two analog-digital converters and a driver stage for a two-channel digital audio format,the preamplifiers being connected to the output of the electroacoustic transducer and being connected in turn each with an analog-digital converter, and the analog-digital converters being connected to the digital driver stage,the associated amplifier containing a receiver for a two-channel digital audio format and a signal processor which determines coefficients for generating, from the two-channel digital audio format, a single-channel signal which is an image of the signal of the electroacoustic transducer, whereby amplification and filtration are thereby computed.
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Abstract
The problem addressed by the invention, to develop a microphone with assoted amplifier which has a better dynamic response than analog microphones, requires less space, can replace analog microphones by using cables already in place, and has a low-cost construction, is solved by the invention in that the microphone is made up of an electroacoustic transducer, two analog-digital converters, two preamplifiers connected to the output of the electroacoustic transducers on the one hand and on the other hand each with preamplifiers connected each to an analog-digital converter, and with a driver stage connected to the analog-digital converters for a two-channel digital audio format and in that the amplifier is made up of a receiver for a two-channel digital audio format and a signal processor which generates a one-channel signal from the two-channel audio format as an image of the signal of the electroacoustic transducer. The field of application is in musical production. The invention is illustrated by FIGS. 1 and 2.
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Citations
9 Claims
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1. A microphone with an associated amplifier, wherein the microphone and the associated amplifier have each a digital circuit connected together by cables such that the circuit for the microphone contains an electroacoustic transducer, two preamplifiers which differ in value of gain, two analog-digital converters and a driver stage for a two-channel digital audio format,
the preamplifiers being connected to the output of the electroacoustic transducer and being connected in turn each with an analog-digital converter, and the analog-digital converters being connected to the digital driver stage, the associated amplifier containing a receiver for a two-channel digital audio format and a signal processor which determines coefficients for generating, from the two-channel digital audio format, a single-channel signal which is an image of the signal of the electroacoustic transducer, whereby amplification and filtration are thereby computed.
Specification