Electrical audio signal processing systems and devices – Sound effects – Reverberators
Patent
1993-06-30
1994-06-28
Kuntz, Curtis
Electrical audio signal processing systems and devices
Sound effects
Reverberators
381 60, 381 26, H04R 500, H04R 2900, H04R 2500
Patent
active
053254368
ABSTRACT:
The insertion effects of hearing aids are determined and compensated to restore the ability to have directional hearing in individuals wearing hearing aids. In one aspect a method involves finding the ratio of the unaided head related transfer function to the aided head related transfer function and then designing a hearing aid filter that is the inverse of that derived insertion effect, thereby restoring the ability to hear interaural differences in aided systems both in level and in time of arrival to improve hearing in the presence of noise. The insertion effects can be derived either through frequency domain analyses, using the above-mentioned transfer function calculations and measurements, or in another aspect through time domain analyses, using optimal filter calculations and measurement obtained using a successive data acquisition system that is subsequently time aligned by recording trigger pulses with the data.
REFERENCES:
patent: 4739513 (1988-04-01), Kunugi et al.
Gao Shawn
Jayaraman Sriram
Soli Sigfrid D.
Sullivan Jean
Eslinger Lewis H.
House Ear Institute
Kuntz Curtis
Maioli Jay H.
Tran Sinh
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