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Audiograms are unable to measure hidden hearing loss, [15] [16] which is the inability to distinguish between sounds in loud environments such as restaurants. Hidden hearing loss is caused by synaptopathy in the cochlea , [ 17 ] as opposed to sensorineural hearing loss caused by hair cell dysfunction.
Pure-tone audiometry is the main hearing test used to identify hearing threshold levels of an individual, enabling determination of the degree, type and configuration of a hearing loss [1] [2] and thus providing a basis for diagnosis and management.
Audiograms of human hearing are produced using an audiometer, which presents different frequencies to the subject, usually over calibrated headphones, at specified levels. The levels are weighted with frequency relative to a standard graph known as the minimum audibility curve , which is intended to represent "normal" hearing.
Audiometry (from Latin audīre 'to hear' and metria 'to measure') is a branch of audiology and the science of measuring hearing acuity for variations in sound intensity and pitch and for tonal purity, involving thresholds and differing frequencies. [1]
Minimum audibility curve is a standardized graph of the threshold of hearing frequency for an average human, and is used as the reference level when measuring hearing loss with an audiometer as shown on an audiogram.
The page included a sample program written in BASIC telling the computer how to add two numbers. Ready . . . 10 INPUT X,Y. 20 LET A=X+Y. 30 PRINT A. 40 END.
Speech Banana. The speech banana is a banana-shaped region where the sounds of human languages appear on an audiogram. (An audiogram is a graphical representation of someone's ability to hear over a range of frequencies and loudness levels.
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