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In the auditory channel, humans are highly attuned to emotional signals in speech and music that arise from shifts in the frequency spectrum and intensity of sound. In this study, response of human beings from various age groups were observed by exposing them to sinusoidal tones of frequency within human hearing range. Similar to a mechanical resonant system, human body also has a cavity, which, when exposed to an external frequency equal to its natural frequency, vibrates with maximum amplitude. An attempt was made to find this resonant frequency of an individual. This frequency value was found to vary with age, gender and physical structure of the person. The frequency may also vary to some extent with temperature and humidity of a place, the time of the day, seasons and health complaints. Here, all the study was done during the afternoon and with people not suffering from any health issues during experimentation. The study is expected to throw light on acoustic environment most suited for an individual to make him realize a state of contentment when he is in a place of worship. The study may also support people from medical background to treat a person through acoustical methods.
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