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Med Instrum ; 12(4): 254-7, 1978.
Artigo em Inglês | MEDLINE | ID: mdl-692471

RESUMO

A system is described for the analysis of respiratory sounds by means of a dual-channel sound envelope detector and a real-time spectrum analyzer. A three-dimensional spectral analyzer display for frequency, amplitude, and time has been utilized. Respiratory sounds have been observed with intensities up to 0.5 N/m2 and with normal frequencies in the range of 0 to 1.5 kHz. This system can extract useful information from the sounds of respiration, information which is not available by conventional auscultation.


Assuntos
Auscultação/métodos , Respiração , Humanos , Análise Espectral/instrumentação
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