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1. Ability to cough can be evaluated through cough sounds: An experimental investigation of effects of microphone type on accuracy

Author

Zu Soh, T Murakami, T Ozaki, Akira Otsuka, Yasutaka Umayahara, and Toshio Tsuji

Subjects
Evaluation system, Microphone, Cough sound, Acoustics, 0206 medical engineering, Regression analysis, 02 engineering and technology, 咳嗽音, 020601 biomedical engineering, Cough ability, respiratory tract diseases, 03 medical and health sciences, 493.3, 0302 clinical medicine, Bone conduction, 030228 respiratory system, 咳嗽能力, cough, マイクロ フォン, 咳嗽, Mathematics
Abstract

To develop a novel cough ability evaluation system through cough sounds, this study verified the effects of three types of microphones (bone conduction mic, mini speech mic, and smartphone mic) on the estimated cough peak flow. From the results of the non-linear regression analysis, the determination coefficients showed high values (greater than 0.7) for the three types of microphones investigated. Furthermore, for the cough sounds recorded with the bone conduction mic and the smartphone mic, including the height variable in the revised prediction equation of the cough peak flow improved the accuracy of the estimated cough peak flow.

Published
2018

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