A portable instrument for phonocephalography

Author

Manoli, Samir H.

Author_Institution

Dept. of Electr. Eng., Texas Univ., El Paso, TX, USA

fYear

1993

fDate

1993

Firstpage

300

Lastpage

301

Abstract

A portable instrument for phonocephalography is provided having a pair of ear insertable microphones of sufficient sensitivity to detect sounds from the surface and cavities of the head. The amplified signals from each microphone are passed through a frequency analyzer and a multiplexing oscillator for display on a two channel oscilloscope. Alternatively or additionally, the amplified signals may be displayed on a chart recorder. An ECG pickup and amplifier may additionally be provided, having input to the second channel of the oscilloscope, for correlating ECG signals with sounds from the ear. Such a device provides a simple, passive, noninvasive technique for diagnosis of, for example, tinnitus and intratemporal carotid aneurysm, and permits correlation of audible sounds from the head with patient´s ECG.

Keywords

bioacoustics; biomedical equipment; patient diagnosis; portable instruments; 2 channel oscilloscope; ECG signals correlation; amplified signals; audible sounds; chart recorder; diagnosis; ear; ear insertable microphones; frequency analyzer; head cavities; head surface; intratemporal carotid aneurysm; multiplexing oscillator; noninvasive technique; phonocephalography; portable instrument; tinnitus; Displays; Ear; Electrocardiography; Frequency; Instruments; Magnetic heads; Microphones; Oscillators; Oscilloscopes; Signal analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering Conference, 1993., Proceedings of the Twelfth Southern

Conference_Location

New Orleans, LA, USA

Print_ISBN

0-7803-0976-6

Type

conf

DOI

10.1109/SBEC.1993.247442

Filename

247442