Fast neuromorphic sound localization for binaural hearing aids

Author

Park, Paul K. J. ; Hyunsurk Ryu ; Jun Haeng Lee ; Chang-Woo Shin ; Kyoo Bin Lee ; Jooyeon Woo ; Jun-Seok Kim ; Byung Chang Kang ; Shih-Chii Liu ; Delbruck, Tobi

Author_Institution

SAIT, Samsung Electron., Yongin, South Korea

fYear

2013

fDate

3-7 July 2013

Firstpage

5275

Lastpage

5278

Abstract

We report on the neuromorphic sound localization circuit which can enhance the perceptual sensation in a hearing aid system. All elements are simple leaky integrate-and-fire neuron circuits with different parameters optimized to suppress the impacts of synaptic circuit noises. The detection range and resolution of the proposed neuromorphic circuit are 500 us and 5 us, respectively. Our results show that, the proposed technique can localize a sound pulse with extremely narrow duration (~ 1 ms) resulting in real-time response.

Keywords

bioelectric potentials; biomedical electronics; ear; hearing aids; noise; binaural hearing aid system; integrate-and-fire neuron circuit; neuromorphic sound localization circuit; parameter optimization; perceptual sensation enhancement; synaptic circuit noise; time 5 mus; time 500 mus; Delay lines; Delays; Neuromorphics; Neurons; Noise; Silicon; Time division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2013 35th Annual International Conference of the IEEE

Conference_Location

Osaka

ISSN

1557-170X

Type

conf

DOI

10.1109/EMBC.2013.6610739

Filename

6610739