Title :
Low power InfomaxICA with compensation strategy for binaural hearing-aid
Author :
Fan-Chiang, Yi ; Huang, Ching-Wen ; Chi, Tai-Shih ; Jou, Shyh-Jye
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
Binaural hearing-aids are under intensive study nowadays. The information exchange across both ears provides an opportunity to perform the blind source separation to enhance the signal SNR. This study combines the conventional InfomaxICA with our proposed novel algorithms: binaural delay compensation, minimum-interference initial de-mixing guess and low power design concept, for a real-time binaural hearing-aid application. Simulations demonstrate our algorithms provide 20.5 to 30.6 dB gain at 0 to 35 points delay at SNR= 0 dB in our assumed scenario. Therefore, our algorithms are robust under various practical wearing conditions.
Keywords :
blind source separation; hearing aids; independent component analysis; medical signal processing; binaural delay compensation; binaural hearing-aid; blind source separation; compensation strategy; gain 20.5 dB to 30.6 dB; information exchange; low power InfomaxICA; low power design concept; minimum-interference initial demixing guess; signal SNR; Algorithm design and analysis; Auditory system; Delay; Microphones; Signal to noise ratio; Speech;
Conference_Titel :
Circuits and Systems (ISCAS), 2011 IEEE International Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4244-9473-6
Electronic_ISBN :
0271-4302
DOI :
10.1109/ISCAS.2011.5938008