Audio apparatus having electronic graphic equalizer
AssigneesHitachi, Ltd., Hitachi Automotive Engineering Co., Ltd.
InventorsHiroshi Ozawa, Shiro Horii, Ichiro Hondo
Life of this patent
Estimating the term…
Abstract
An audio apparatus includes an electronic graphic equalizer, in which a plurality of frequency characteristics corresponding to various space configurations are stored preliminarily and a plurality of frequency characteristics corresponding to various types of music are also stored preliminarily. Suitable frequency characteristics are selected from these two groups of frequency characteristics according to a specific spatial configuration and a specific music to be reproduced and combined to obtain a frequency characteristics suitable for the configuration and the music.
Claims6
An audio apparatus having an electronic graphic equalizer capable of arbitrarily controlling gains in respective frequency ranges within an audible frequency range, first memory means for storing frequency characteristics curves for respective types of car room configuration, second memory means for storing frequency characteristics curves for respective sound sources, first selection means for selecting one of frequency characteristics curves stored in said first memory means, a second selection means for selecting one of frequency characteristics curves stored in said second memory means, and means for adding the two frequency characteristics read out from said first and said second memory means to obtain a composite frequency characteristic, whereby a frequency characteristic suitable for a specific sound source to be reproduced in a specific car room is obtained.
Dependencies are inferred from the claim text.