An audiogram is a chart that records the results of a pure tone hearing test. It can reflect the subject’s hearing level, type, and location of the disease.
AudiogramAbscissaBefrequency.Y-axisforstrength, The sound frequency is in Hertz (Hz), and the sound intensity is in the hearing level (dB HL).The frequency test range is 125Hz~8000Hz, and the intensity test range is -10~120dB HL.
Common “low frequencies” in daily life such as bass drums and bass drums; as well as vowels in speech, such as the “o” in “who”; common “high frequencies” in daily life such as gongs, cymbals, and birdsong Voice.And consonants in speech, such as the “s” in “sun”.
The different sound intensities indicated by the ordinate in the audiogram, the ticking of clocks, whispers and rustling of tree leaves that are common in daily life are all relatively weak in intensity; while the sound of lawn mowers, car horns, firecrackers and rock concerts They are all loud sounds in daily life. www.jhhearingaids.com
The pure tone hearing chart is often combined with the speech banana chart to indicate the degree of hearing loss and the location of the hearing loss of the hearing impaired patient.For example, low-frequency hearing is normal, but high-frequency hearing is reduced. You may hear part of the speech, but you will always feel unclear.
Determine the level of hearing level according to the sound intensity of the average threshold level on the audiogram.The listening level is divided into:Normal hearing（-10~25dB HL）、MildHearing loss（26~40dB HL）、Moderate hearing loss（41~60dB HL）、Severe pounding（60~80dB HL）、Extremely severe hearing loss（≥81dB HL）。
Audiologists use various symbols to mark test results.Use red”О“Indicating the sound intensity of the right ear air conduction, use blue”Baja California Notebook – Simebooks“Indicates the left ear air conduction sound intensity. “<” indicates the right ear bone conduction sound intensity, and “>” indicates the left ear bone conduction sound intensity. Use”△“Indicates the sound intensity of the right ear air conduction masked, “□” indicates the sound intensity of the left ear air conduction masking, and “U” indicates the level of discomfort threshold.Hearing aid
Link： How to read audiograms?
REF: BTE Hearing Aids, Hearing Loss, Hearing Aids TypesThe article comes from the Internet. If there is any infringement, please contact [email protected] to delete it.
