Operating Instructions
41
Creating a DPOAE Protocol
To create a new protocol file, click the
Create New
button located on the right panel of the protocol
window. A new dialog will appear, select
DPOAE Protocol
.
The New DPOAE Protocol dialog above shows the window for creating or modifying a DPOAE Protocol.
Protocol Name: the text entered into the Protocol Name field is what will appear in the instrument when
the protocol is loaded. This should be kept to approximately 14-16 characters in length so that the full
protocol name can be viewed on the instrument display.
Evaluation Criteria: check the box if a Pass or Refer outcome should be determined for this protocol.
Indicate the number of passing frequencies required for the overall test result to be
Pass.
Number of
passing frequencies for a test pass can be set to any value between 1 and 10, but cannot exceed the
total number of frequencies tested.
F2: use the slider bars or type the numerical value into the text box to set the f2 frequency. The f2
frequency is customizable in 100 Hz increments between 1.5 and 12 kHz.
Frequency Ratio: the frequency separation between the two primary tones (f2/f1). The f2/f1 ratio is
adjustable between 1.1 to 1.4.
P1/P2: these settings control the intensity of the two primary tones (f1 and f2). P1 and P2 are
adjustable between 40 and 70 dB SPL. The maximum paired setting is 70/60. The minimum paired
setting is 40/40.
Averaging Time: established the length of time the OAE will be measured and averaged at each test
frequency. This is adjustable between 1 and 4 seconds. Note: Longer averaging time generally results
in better test outcomes particularly when measuring in noisy environments, but shorter averaging times
may be desirable for pediatric populations.
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