AUDIO REGENERATION DEVICE

AUDIO REGENERATION DEVICE

PURPOSE: To generate a low frequency sound with high quality without giving a low frequency component below a resonance frequency of a speaker to the speaker. CONSTITUTION: A high pass filter 11 and a band pass filter 12 separate an audio signal Sin into a low frequency component and a high frequenc...

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Hauptverfasser: AKIYASU MASAICHI, NODA HIDEO, KIKUCHI MOTOICHIRO
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Sprache:eng
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
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creator AKIYASU MASAICHI
NODA HIDEO
KIKUCHI MOTOICHIRO
description PURPOSE: To generate a low frequency sound with high quality without giving a low frequency component below a resonance frequency of a speaker to the speaker. CONSTITUTION: A high pass filter 11 and a band pass filter 12 separate an audio signal Sin into a low frequency component and a high frequency component, a frequency multiplier circuit 13 multiplies (e.g. twice) an audio signal frequency of the low frequency component, and a synthesis section 17 synthesizes the high frequency component and an output of the frequency multiplier circuit and provides an output of the synthesis signal to a speaker. The speaker sounds a sound in response to the audio signal to a sound space correctly by giving the audio signal whose frequency is multiplied to the speaker in this way. A listener can recognize a fundamental tone from the sound in response to the frequency multiplied signal, that is, a low frequency audio signal below the resonance frequency f0 in terms of the acousto-psychology. Since the low frequency component below the resonance frequency f0 is not given to the speaker, a low tone without distortion is regenerated in an excellent way.
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CONSTITUTION: A high pass filter 11 and a band pass filter 12 separate an audio signal Sin into a low frequency component and a high frequency component, a frequency multiplier circuit 13 multiplies (e.g. twice) an audio signal frequency of the low frequency component, and a synthesis section 17 synthesizes the high frequency component and an output of the frequency multiplier circuit and provides an output of the synthesis signal to a speaker. The speaker sounds a sound in response to the audio signal to a sound space correctly by giving the audio signal whose frequency is multiplied to the speaker in this way. A listener can recognize a fundamental tone from the sound in response to the frequency multiplied signal, that is, a low frequency audio signal below the resonance frequency f0 in terms of the acousto-psychology. 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subjects BASIC ELECTRONIC CIRCUITRY
CONTROL OF AMPLIFICATION
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
title AUDIO REGENERATION DEVICE
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