9320 Reference Controller Operating Manual 41 (52)
Fig. 36. Accumulated sound exposure dose display. In this case, the ITU-T Recommendation H.870
settings are used for dose accumulation. Also the average SPL level and the accumation time are
shown.
Table 5. Source of sound exposure audio level.
Output Mic connected Sound exposure (noise dose) accumulation
Headphone Yes From headphone signals
No From headphone signals
Analog Yes From mic signal
No Dose does not accumulate
Digital Yes From mic signal
No Dose does not accumulate
GLM control
Audio does not go
through 9320
Yes From mic signal
No Dose does not accumulate
8.9 Measurement Microphone and SPL Weighting
The frequency weighting used for the sound level measurement and the sound exposure measurement
are set in the 9320 configuration page, accessible in the GLM software.
When the measurement microphone changes, the new measurement microphone can be configured in
9320 using GLM software. The measurement microphone configuration affects the GLM AutoCal system
calibration accuracy, sound level metering and sound exposure calculation.
Fig. 37. Setting the microphone serial number.
The microphone is configured by setting the serial number on printed on the microphone body in the
GLM software and by pressing ‘Load Cal’ to find the correct microphone calibration. The microphone
calibration is fetched in the Genelec Cloud, and for the calibration setting to succeed, the user must be
registered as a MyGenelec user and be logged in on his personal MyGenelec account. After reading, the
microphone calibration is stored into the 9320 Reference Controller, and thereafter GLM reads the
microphone calibration in the 9320 Reference Controller.
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