Title :
A low complexity speech coder for binaural communication in hearing aids
Author :
Shuo-Wen Hsu ; Tian-Sheuan Chang
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao-Tung Univ., Hsinchu, Taiwan
Abstract :
This paper presents a low complexity speech coder with the adaptive Minimum-Maximum Scalar Quantization (MMSQ) method suitable for binaural communication in hearing aids. Compared to the fixed rate MMSQ, the adaptive MMSQ can achieve similar or better compression ratio with 13dB SNR improvement. The final codec implementation with 0.18um CMOS process only costs 6K gate count with 118uW power consumption.
Keywords :
CMOS integrated circuits; hearing aids; quantisation (signal); speech coding; MMSQ method; adaptive minimum-maximum scalar quantization method; binaural communication; hearing aids; low complexity speech coder; power 118 muW; size 0.18 mum; Complexity theory; Hearing aids; Signal processing algorithms; Signal to noise ratio; Speech; Speech coding; adaptive MMSQ; hearing aids; lossy compression; low power; scalar quantization; speech coding; waveform coder;
Conference_Titel :
Circuits and Systems (ISCAS), 2012 IEEE International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4673-0218-0
DOI :
10.1109/ISCAS.2012.6271892
