GN Otometrics A/S 1012 ユーザーズマニュアル

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GN Otometrics A/S
User Manual
 OTOflex 100
sive high-frequency electrical activity and may facilitate identifica-
tion of major wave components.
Sound Level Meter
Device for measuring the intensity level of sound waves in air; the 
unit of measurement is in decibels sound pressure level (SPL dB).
Tympanometry (Tymp)
Procedure used in the assessment of middle ear function in which 
the immittance of the tympanic membrane and middle ear is meas-
ured as air pressure delivered to the ear canal is varied.
Transducer
Electronic component transforming e.g. an electrical signal into 
sound, sound into an electrical signal, or a pressure into a voltage.
Tone
Sinusoid or steady-state (ongoing) sound of a single-frequency (vs. 
noise with many frequencies or a click).
Tone Burst
Evoked Response Audiometry (ERA) is an electrical response to 
acoustical stimulus, usually a Click or a Tone Burst. A Tone Burst is 
a sinusoid or steady-state (ongoing) sound of a single-frequency (vs. 
noise with many frequencies or a click). Tone bursts can be defined 
by 4 parameters: RiseTime, DecayTime, Duration and StimDelay.
Intelligent transducer
A transducer bundled with a memory containing the transducer's 
calibration data and history.