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Hearing aid employing adjustment of the intensity and the arrival time of sound by electronic or acoustic, passive devices to improve interaural perceptual balance and binaural processing

  • US 5,434,924 A
  • Filed: 03/06/1991
  • Issued: 07/18/1995
  • Est. Priority Date: 05/11/1987
  • Status: Expired due to Term
First Claim
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1. A method for improving binaural hearing balance of a person with two functioning ear systems, one of which has hearing perception which is poorer than hearing perception in said person'"'"'s other and better ear system, said method comprising:

  • (a) determining differences in binaurally perceived intensities and in binaurally perceived sound arrival times between such person'"'"'s left and right ear systems so as to determine a difference in hearing perception between said person'"'"'s two ear systems, and(b) adjusting (1) intensity of sound to at least one of said person'"'"'s ear systems, and (2) arrival time of sound to at least one of said person'"'"'s ear systems in accordance with said determined differences in binaurally perceived intensities and binaurally perceived sound arrival times between such person'"'"'s two ear systems such as to decrease said differences and achieve better interaural balance between said person'"'"'s two ear systems,thereby to improve interaural perceptual balance between said person'"'"'s two ear systems and binaural processing of said person, and thus improve said person'"'"'s hearing, including speech perception, for different environments and different sound levels.

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