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公开(公告)号：US5745586A
公开(公告)日：1998-04-28
申请号：US657930
申请日：1996-04-25
申请人： Ryo Tagami , Mitsuhiko Serikawa
发明人： Ryo Tagami , Mitsuhiko Serikawa
CPC分类号： H03G5/025
摘要： A sound quality control system according to the present invention precisely and swiftly realizes a sound quality that is desired by a listener, by controlling sound quality based on quantitative counter model between the psychological characteristic and the physical characteristic of a sound reproduction apparatus. A quantitative counter model between the physical characteristic of a sound reproduction apparatus and a plurality of the psychological quantities upon hearing a sound therefrom is constituted for each respective psychological quantity. Based on the quantitative counter model, a desired sound quality is input to a compensation characteristics extractor, and a compensation characteristic that realizes the desired sound quality is extracted. The compensation characteristic is sent to a signal processor; and an audio signal input is processed according to the compensation characteristic, and amplified to be reproduced by a loudspeaker.
摘要翻译： 根据本发明的声音质量控制系统通过基于声音再现装置的心理特征和物理特性之间的定量计数器模型来控制声音质量来精确地并且迅速地实现收听者期望的声音质量。 针对每个心理量构成声音再现装置的物理特性与听到声音之间的多个心理量之间的定量计数器模型。 基于定量计数器模型，将期望的声音质量输入到补偿特性提取器，并且提取实现期望音质的补偿特性。 补偿特性被发送到信号处理器; 并且根据补偿特性处理音频信号输入，并被扬声器放大以再现。
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公开(公告)号：US5381482A
公开(公告)日：1995-01-10
申请号：US12265
申请日：1993-02-01
申请人： Masaharu Matsumoto , Mitsuhiko Serikawa , Akihisa Kawamura , Hiroko Numazu , Takeshi Norimatsu , Ryo Tagami , Mikio Oda
发明人： Masaharu Matsumoto , Mitsuhiko Serikawa , Akihisa Kawamura , Hiroko Numazu , Takeshi Norimatsu , Ryo Tagami , Mikio Oda
CPC分类号： H04S1/002 , H04S7/305 , H04S1/007 , H04S2400/01 , H04S5/00
摘要： A sound field controller for generating apparent sound sources by adjusting the amplitude and delay time of a sound signal so that the sound will be perceived by plural listeners as sound coming from a location separated from the specific location of the front speakers, and for additionally controlling the effect of the apparent sound sources by evaluating the attributes of the source sound signal. The controller includes FIR filters for generating a left sound pattern signal, FIR filters for generating a right sound pattern signal, a first delay circuit for delaying the left and right sound pattern signals by a first predetermined time and applying the delayed left and right sound pattern signals to the left and right speakers, respectively, to introduce an apparent sound source located left rear of a center listener; and a second delay circuit for delaying the left and right sound pattern signals by a second predetermined time and applying the delayed left and right sound pattern signals to the right and left speakers, respectively, to introduce an apparent sound source located right rear of a center listener.
摘要翻译： 一种声场控制器，用于通过调节声音信号的幅度和延迟时间来产生视在声源，使得声音将被多个听众感知为来自与前置扬声器的特定位置分离的位置的声音，并且用于另外控制 通过评估源声音信号的属性来观察视声源的影响。 控制器包括用于产生左声音模式信号的FIR滤波器，用于产生右声音模式信号的FIR滤波器，用于将左右声音图形信号延迟第一预定时间的第一延迟电路，并将延迟的左右声音模式 分别向左右扬声器发出信号，引入位于中心听众左后方的明显声源; 以及第二延迟电路，用于将左右声音图形信号延迟第二预定时间，并将延迟的左右声音图案信号分别施加到左右扬声器，以引入位于中心右后方的表观声源 听众
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3.发明授权
公开(公告)号：US5164840A
公开(公告)日：1992-11-17
申请号：US400190
申请日：1989-08-28
申请人： Akihisa Kawamura , Masaharu Matsumoto , Mitsuhiko Serikawa , Ryo Tagami , Katsuaki Sato , Hiroko Yoshida , Hikari Hashimoto
发明人： Akihisa Kawamura , Masaharu Matsumoto , Mitsuhiko Serikawa , Ryo Tagami , Katsuaki Sato , Hiroko Yoshida , Hikari Hashimoto
CPC分类号： G11B20/00992 , G11B27/007 , G11B27/107 , G11B27/322 , G11B27/34 , H04N9/802 , H04S1/007
摘要： Control codes for controlling processing of an audio signal by a sound field variation circuit to produce desired sound fields are recorded on a monaural track of a video tape concurrent with recording of video and audio signals, and can thereby be subsequently played back for producing sound fields which are respectively synchronized with video images.
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