Soft-db Opus Suite SLM & 3Vib Module Uživatelský manuál stáhnout pdf (Strana 23)

6.1.3.1 SLM Calibration Interface

Figure 1 SLM Calibration Interface

Step 1 Adjust the calibration parameters

The defaults values are:

 Averaging time: 5 s

 Frequency: 1 kHz

 Calibrator Level: 94 dB

Step 2 Install the calibrator device on the microphone

Step 3 Click START

After the average time is elapsed, the sensitivity value will update.

Step 4 Click OK to accept the sensitivity value

6.1.4 SLM dBref value

The dBref value is the reference value that is used to establish the zero decibel (dB) level. In the

application, the decibel level will be based on this reference. The standard dBref value for SLM

measurements is 2E-5 Pa.

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Soft-db Opus Suite SLM & 3Vib Module Uživatelský manuál Strana 23