Title :
Low-power ANSI S1.11 filter bank for digital hearing aids
Author :
Kuo, Yu-Ting ; Lin, Tay-Jyi ; Li, Yueh-Tai ; Lin, Chou-Kun ; Liu, Chih-Wei
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu
Abstract :
This paper presents a low-power filter bank design for digital hearing aids, which is compliant with the ANSI S1.11 standard. A multi-rate filtering algorithm and its coefficient design method are proposed, which reduce 94% multiplications. The power dissipation is further reduced by 31% and 35% with switch activity reduction and multi-VDD silicon implementation respectively. The design has been implemented using the TSMC 0.13 mum CMOS technology and consumes only 79 muW for 24 KHz 18-band audio processing.
Keywords :
CMOS integrated circuits; channel bank filters; hearing aids; TSMC CMOS technology; audio processing; coefficient design method; digital hearing aids; low-power ANSI S1.11 filter bank; multi-rate filtering algorithm; power dissipation; ANSI standards; CMOS process; CMOS technology; Design methodology; Filter bank; Filtering algorithms; Hearing aids; Power dissipation; Silicon; Switches; Hearing aid; filter bank; low power;
Conference_Titel :
Signals and Electronic Systems, 2008. ICSES '08. International Conference on
Conference_Location :
Krakow
Print_ISBN :
978-83-88309-47-2
Electronic_ISBN :
978-83-88309-52-6
DOI :
10.1109/ICSES.2008.4673433
