Frye FONIX 8000 - Chapter 5: Calibration; Microphones

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Chapter 5: 33

Chapter 5: Calibration

There are few calibration adjustments on the 8000, both external and internal to the

instrument. Those available are covered in this section.

5.1 Microphones

A sound level calibrator, such as the Quest QC-10 (with the supplied adapter), is

used to generate a signal level at a calibrated intensity.

From the Opening Screen, press [MENU] to enter the setup menu. Then press F6 to

enter the microphone calibration screen. Place the M1958E in a sound level cali-

brator. Position the cursor with the left/right key till the selected level matches the

calibrator level. Press the Start key to make the calibration.

There are three possible microphones on the FONIX 8000 analyzer:

•Couplermicrophone(M1950EorM1958E)

•Probemicrophone

•Referencemicrophone

All 8000 analyzers include a coupler microphone. The procedure for calibrating this

microphone is described in Section 5.1.1. 8000 analyzers that do not include the

Real-ear Option will only have the coupler microphone.

8000 analyzers with the Real-ear Option have an integrated probe microphone set

in addition to the coupler microphone. This consists of a probe microphone inte-

grated into the earhook and a rectangular reference microphone that attaches to the

top of the earhook. The procedure for calibrating the integrated probe microphone

is described in Section 5.1.2. The procedure for calibrating the rectangular reference

microphone is described in Section 5.1.3.

To perform the microphone calibrations, you will need the following equipment, de-

pending on what type of microphones you are calibrating. The adapters come stan-

dard with the analyzer. You can purchase additional adapters and a sound calibrator

from the factory. (Sound calibrators are special orders and may not be immediately

available for purchase.)

•SoundcalibratorsuchasaQC-10(allcalibrations)

•14mm-to-1inchmicrophoneadapter(couplerandold-stylereferencemicro-

phone calibration)

•Probemicrophoneadapter(probemicrophonecalibration)