Title :
A low-cost architecture of audiometer based on direct digital synthesizer
Author :
Wu, Han-Chang ; Yang, Li-Ping ; Chen, Chien-Hao ; Young, Shuenn-Tsong ; Kuo, Te-Son
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
The authors propose a new architecture for audiometers. By utilizing a direct digital synthesizer (DDS), pure tone testing signals could be generated more precisely than by other existing techniques. A microcontroller was used to receive the stimulating commands from a PC and then send appropriate control signals to the DDS and the log attenuator. All components were assembled with compact size and low cost
Keywords :
acoustic signal processing; biomedical equipment; hearing; medical signal processing; microcontrollers; audiometer; compact size low cost components; control signals; direct digital synthesizer; log attenuator; low-cost architecture; medical instrumentation; pure tone testing signals; stimulating commands; Attenuators; Auditory system; Biomedical engineering; Circuit testing; Digital circuits; Digital signal processing; Frequency; Microcontrollers; Signal generators; Synthesizers;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.804049
