A SERVICE OF

logo

Open as PDF
next previous
Coupler Measurements 67
Figure 3.4.1C—This aid shows a great deal of compression between 50 dB and 90 dB.
3.4.2 Running a Single Frequency Measurement
At times, you may want to find out what the frequency response of the hearing
aid is to a single pure-tone signal.
1. Push [F4] and hold the key down for half a second until the Source
Selection box appears.
2. Use [
∧,∨] to choose SINGLE.
3. Press [START] to make the selection and close the selection box.
4. Use [<, >] to select the frequency you want to use as the source signal. Use
[
∧,∨] to select the amplitude.
5. Press [START] to start the measurement. When finished, press [START]
again to stop the signal.