Loudspeaker system for use in a stereophonic sound reproduction system
AssigneeSansui Electric Co., Ltd.
InventorsFumio Kobayashi, Shozo Koshigoe
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Abstract
In order to improve characteristics of localization of sound images and a listener's sense of stereophonic perspective, a loudspeaker system for a stereophonic sound reproduction system comprises a main speaker adapted to be driven by audio input signal and radiate acoustic energies toward a listener for stereophonic reproduction, and a subspeaker adapted to be driven by the input signal and radiate out-of-phase acoustic energies which are smaller in magnitude than the acoustic energies provided by the main speaker and reach the listener with a time delay.
Claims10
A loudspeaker system for use in a stereophonic sound reproduction system for providing a stereophonic sound field using at least one pair of loudspeaker systems placed at equal distances from a listener in a listening room and receiving stereophonically related audio signals, each loudspeaker system comprising:
- a main speaker responsive to application of a corresponding one of the stereophonic audio signals thereto to radiate an acoustic energy toward the listener;
- and
- a sub-speaker responsive to application of said corresponding one of the stereophonic audio signals thereto to radiate an acoustic energy which is out of phase with, and smaller in magnitude than the acoustic energy from said main speaker and reaches the listner's corresponding one ear later than the acoustic energy from said main speaker.
A loudspeaker system for use in a stereophonic sound reproduction system for providing a stereophonic sound field using at least one pair of loudspeaker systems placed substantially at equal distances from a listener in a listening room and receiving stereophonically related audio signals, each loudspeaker system comprising:
- a main speaker responsive to application of the corresponding one of the stereophonic audio signals thereto for radiating an acoustic energy corresponding to the audio signal;
- and
- first, second and third sub-speakers responsive to application thereto of said corresponding one of the stereophonic audio signals which is smaller in amplitude than, and in an out-of-phase relation to the audio signal applied to said main speaker for radiating acoustic energies respectively in upper, left and right directions with respect to said main speaker.
Dependencies are inferred from the claim text.