1991 · 50 citations · 2 references
Health ProfessionsComputer EngineeringElectrical EngineeringAssistive Listening DevicesHearing AidsHearing ScienceDigital Signal ProcessingHearing Aid Signal ProcessingHearing Assistive DevicesDigital Filtering ArchitecturesFilter Bank DesignFinite Impulse Response FiltersHearing Aid RehabilitationReal-time Operation
A digital filterbank that can be used in a hearing aid is proposed. Complementary interpolated linear phase impulse-response filters are used to minimize the number of multiplications per sample. The filterbank has eight bands, each with sidelobes of about 40 dB. It can be realized with a total of 27 multiplications. If a multiplication with 0.5 is implemented as a shift, then the total will be 19. The hearing aid was implemented on a general-purpose digital signal processor for real-time evaluations. A portable processor system based on Texas TMS320E25 was constructed for testing under real-world conditions.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
2
Multirate digital signal processing
Signal Processing · 1984 · 515 citations
Engineering, Computer Engineering, Electrical Engineering +6
Experiments with a programmable master hearing aid.
Harry Levitt, Sullivan Ja, Arlene C. Neuman et al. · PubMed · 1987 · 19 citations