Novel software for real-time processing of phonocardiographic signal

Author

Sakari, Lukkarinen ; Kari, Sikio ; Anna-Leena, Noponen ; Anna, Angerla ; Raimo, Sepponen

Author_Institution

Lab. of Appl. Electron., Helsinki Univ. of Technol., Espoo, Finland

Volume

4

fYear

1997

fDate

30 Oct-2 Nov 1997

Firstpage

1455

Abstract

Novel software which processes real-time digital phonocardiographic signal in personal computer has been developed. The software is capable to display, process, and record heart sound signals with all standard multimedia sound formats (11025 Hz/22050 Hz/44100 Hz, 8/16 bits, mono/stereo). Both time varying amplitude graph and short-time Fourier transformation (STFT) based time-frequency distribution can be displayed simultaneously on the computer screen. User definable digital filters can be used to enhance the results

Keywords

IIR filters; bioacoustics; cardiology; digital filters; graphical user interfaces; medical signal processing; signal sampling; spectral analysis; time-frequency analysis; IIR filters; auscultation; digital phonocardiographic signal; heart sound signals; multimedia sound formats; real-time processing software; sampling frequency; short-time Fourier transformation; stereo sound processing; time varying amplitude graph; time-frequency distribution; user definable digital filters; Computer displays; Computerized monitoring; Digital filters; Hardware; Heart; IIR filters; Microcomputers; Signal processing; Software standards; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE

Conference_Location

Chicago, IL

ISSN

1094-687X

Print_ISBN

0-7803-4262-3

Type

conf

DOI

10.1109/IEMBS.1997.756980

Filename

756980