captador sonoro de pratos sem contato utilizando múltiplos microfones

As described herein, a sound pickup for musical cymbals includes an integrated assembly attachable to a cymbal stand. The integrated assembly includes a plurality of microphones arranged and electrically connected such that the resulting amplified sound is of optimal quality and of relatively consta...

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Bibliographic Details
Main Authors DAVID MCDONALD, CHRISTOPHER C. RYAN, JULIA D. TRUCHSESS
Format Patent
LanguagePortuguese
Published 15.05.2018
Subjects
ACCORDIONS OR CONCERTINAS
ACOUSTICS
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
MUSICAL INSTRUMENTS
MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
PERCUSSION MUSICAL INSTRUMENTS
PHYSICS
PUBLIC ADDRESS SYSTEMS
STRINGED MUSICAL INSTRUMENTS
WIND MUSICAL INSTRUMENTS
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Summary:As described herein, a sound pickup for musical cymbals includes an integrated assembly attachable to a cymbal stand. The integrated assembly includes a plurality of microphones arranged and electrically connected such that the resulting amplified sound is of optimal quality and of relatively constant loudness regardless of cymbal tilt. In one embodiment, two microphones are used, with the signal phase from one microphone being inverted prior to combination with the signal from the other microphone. The inversion is implemented using an inverter and serves to cancel signals that are in phase with one another and augment signals that are out of phase with one another. This, along with suitable placement of the pickup, exploits the fact that the more desirable components of the cymbal's vibration at the inflection point of the cymbal are out of phase with each other, whereas the less-desirable components are in phase with each other.
Bibliography:Application Number: BR20131106208