PROBLEM TO BE SOLVED: To provide a respiration diagnostic device and a respiration diagnostic program that have enhanced accuracy of determination on which of nasal breathing and mouth breathing is performed.SOLUTION: A respiration diagnostic device 300 includes a sound collector 110 mounted on the nose of a user for taking in a body-conducted sound through the cartilage of the nose, a microphone 130 attached to the sound collector 110 for generating sound data indicating a temporal change in the amplitude of the body-conducted sound taken in by the sound collector 110, and a frequency analyzer 200 for subjecting the sound data generated by the microphone 130 to Fourier transformation, and determining which of nasal breathing and mouth breathing the user has performed using the result of the Fourier transformation to which the sound data is subjected.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】鼻呼吸と口呼吸のいずれが行われたかの判定の正確性が高められた呼吸診断装置及び呼吸診断プログラムを提供する。【解決手段】呼吸診断装置300は、ユーザの鼻に装着され、鼻の軟骨を通じて体導音を取り込む集音器110と、集音器110に取り付けられ、集音器110によって取り込まれた体導音の振幅の時間変化を表す音データを生成するマイクロホン130と、マイクロホン130によって生成された音データにフーリエ変換を施すと共に、音データにフーリエ変換を施した結果を用いて、ユーザが鼻呼吸と口呼吸のいずれを行ったかの判定を行う周波数解析器200とを備える。【選択図】図1
