Improving of lung sounds registration device for further signal processing

The paper proposed and implemented the various ways to optimize devices for lung sounds auscultation and digitization. To achieve this aim the following steps are proposed: increasing the amount of detected lung sounds channels, data digitizing directly in the device, noise reduction. Also experiments on transmission of lung sounds signals were carried out using a wireless data transfer module NRF24L01. Analysis of the proposed methods and their practical implementation were carried out. It is shown that the offered options for auscultation tools changing improve quality and increase the quantitative characteristics of the recorded signal. Developed ways of optimization can be applied to improve both separate blocks of phonospirographic complex and the complex as a whole. Designed module will provide new opportunities for telemedicine applications.