Which is the best definition of an audiogram?
An audiogram is a graph that shows the audible threshold for standardized frequencies as measured by an audiometer. The Y axis represents intensity measured in decibels and the X axis represents frequency measured in hertz. An audiogram can be obtained using a behavioural hearing test called Audiometry.
Is the audiogram supposed to show a straight line?
Ideally the audiogram would show a straight line, but in practice everyone is slightly different, and small variations are considered normal.
What causes a significant loss in the audiogram?
Otosclerosis results in an audiogram with significant loss at all frequencies, often of around 40 dB (HL). A deficiency particularly around 2 kHz (termed a Carhart notch in the audiogram) is characteristic of either otosclerosis or a congenital ossicular anomaly. Ménière’s disease results in a severe loss at low frequencies.
What do the red circles on an audiogram mean?
Red circles are the right ear using headphones and left x’s are the left ear using headphones. Brackets < or > demote that a bone conductor was used, not headphones, and this just tests hearing from the middle and inner ear. The direction that the bracket is opening tells you the ear it is testing.
What can I do with the free audiogram creator?
Use our free Audiogram Creator to plot hearing test results. You can save them for later viewing, record different tests and save your results as an image. Uh oh! Your browser is not new enough to support Audiogram Creator.
When to use an ultra high frequency audiogram?
Most commonly, “conventional” audiometry (utilizing audiograms up to 8 kHz) is used to measure hearing status. For research purposes, or early diagnosis of age-related hearing loss, ultra-high frequency audiograms (up to 20 kHz), requiring special audiometer calibration and headphones, can be measured.
Why are audiograms unable to measure hidden hearing loss?
Audiograms are unable to measure hidden hearing loss, which is the inability to distinguish between sounds in loud environments such as restaurants. Hidden hearing loss is caused by synaptopathy in the cochlea, as opposed to sensorineural hearing loss caused by hair cell dysfunction.