Speaker control apparatus and speaker system

There is provided a speaker control apparatus capable of efficiently improving frequency characteristic of a speaker apparatus of phase inversion type, which is originally small in size and high in efficiency. The speaker control apparatus(10) includes a detection section(5) for detecting sound pres...

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Bibliographic Details
Main Author OHYABA, TAKASHI
Format Patent
LanguageEnglish
French
German
Published 08.10.2003
Edition7
Subjects
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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Summary:There is provided a speaker control apparatus capable of efficiently improving frequency characteristic of a speaker apparatus of phase inversion type, which is originally small in size and high in efficiency. The speaker control apparatus(10) includes a detection section(5) for detecting sound pressure within a speaker apparatus(1) of phase inversion type and generating a sound pressure signal Spo corresponding to the detected sound pressure, a signal processing section(13) for generating a feedback signal Sfb for feedback on the basis of the detected sound pressure signal Spo, a feedback section(11) for feeding back the feedback signal Sfb to an input signal corresponding to sound to be radiated and generating a feedback input signal Ssy, and an amplification section(12) for driving a speaker unit included in the speaker apparatus(1) on the basis of the feedback input signal Ssy and causing radiation of sound.
Bibliography:Application Number: EP20030004891