User's Manual

47
Audiometer specifications
Audiometer classification
Pure tone audiometer type 2 and speech audiometer class A (IEC 60645-1,
ANSI S3.6)
SIGNALS AVAILABLE FOR AUDIOMETRY
Type
Tone
•
Warble tone
•
MIC input for speech audiometry (live speech)*
•
Narrow band noise (NBN)
•
White noise (WN).
•
Speech noise (SN)
•
*the microphone must be positioned in front of the operator's mouth.
SIGNAL CHARACTERISTICS
Attenuator step
1, 2 and 5 dB
Presentation mode
Continuous
Pulsed at a rate of 0.5 Hz, 1 Hz, 2 Hz, or operator-
settable rate
OUTPUTS AND TRANSDUCERS AVAILABLE FOR AUDIOMETRY
Output
Air conduction (DD45 or TDH-39 headphones)
•
Air conduction (ER-3C insert earphones)
•
Bone conduction (B-71 vibrator)
•
Free field (built-in speaker, external passive speakers)
•
AUDIOMETRY TESTS AVAILABLE
Pure tone audiometry
•
Autothreshold
•
Speech audiometry
•
Master Hearing Aid
•
QuickSIN
opt