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http://dx.doi.org/10.5302/J.ICROS.2006.12.6.530

Digital Hearing Aid DSP Chip Parameter Fitting Optimization  

Jarng Soon-Suck (Chosun University, Dept. of Information Communication Eng.)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.12, no.6, 2006 , pp. 530-538 More about this Journal
Abstract
DSP chip parameters of a digital hearing aid (HA) should be optimally selected or fitted for hearing impaired persons. The more precise parameter fitting guarantees the better compensation of the hearing loss (HL). Digital HAs adopt DSP chips for more precise fitting of various HL threshold curve patterns. A specific DSP chip such as Gennum GB3211 was designed and manufactured in order to match up to about 4.7 billion different possible HL cases with combination of 7 limited parameters. This paper deals with a digital HA fitting program which is developed for optimal fitting of GB3211 DSP chip parameters. The fitting program has completed features from audiogram input to DSP chip interface. The compensation effects of the microphone and the receiver are also included. The paper shows some application examples.
Keywords
digital hearing aid; GB3211 DSP chip; parameter fitting; optimization; hearing loss; audiogram;
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