Medical Hear IT - treatment hearing symptoms hearing Non-commercial information and advice for GP’s and family physicians to assist in the counselling of hearing impaired patients
symptoms hearingNon-commercial information and advice for GP’s and family physicians to assist in the counselling of hearing impaired patients.[treatment hearing] [symptoms hearing] [hard of hearing children] [hearing impaired children] [preventing hearing loss] [symptoms hearing] [HOME] |
person. A high-pitched sound could be a piccolo flute or a bird singing. Low-pitched sounds could be thunder heard from far away or tones from a bass guitar.
aaltazxgsymptoms hearing
DeciBel (dB) The term dB (deciBel) and symptoms hearing the dB scale is used all over the world for the measurement of sound levels. The deciBel scale is a logarithmic scale where a doubling of sound pressure corresponds to a 6 dB increase in level. symptoms hearing It is very important to realize that the term ’dB’ can have different meanings and is not a fixed value like the volt or the meter etc. The value of a dB depends on the context in which symptoms hearing it is used. Very often sound pressure is expressed either in dB SPL, where the weakest sound which a normal hearing person can decect is 1000 Hz or in dB HL which symptoms hearing corresponds to the normal hearing threshold of a specific sound, (e.g. from 125 Hz to 8000 Hz), 0 dB SPL and 0 dB HL are therefore not the same. Examples of different sound intensities as expressed in dB(HL): 180 dB: symptoms hearing Rocket at take-off 140 dB: Jet engine at take-off 120 dB: Rock band 110 dB: Loud thunder 90 dB: City traffic 80 dB: Loud radio 60 dB: Ordinary conversation 30 dB: Very soft whisper 0 dB: Softest sound a person can hear [Email: info@medical.hear-it.org] |