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Last Modified: July 19, 2019

Specifies the decibel reference level in the units of the channel. When you read samples as a waveform, the decibel reference level is included in the waveform attributes. NI-DAQmx also uses the decibel reference level when converting AI.SoundPressure.MaxSoundPressureLvl to a voltage level.

Data type: datatype_icon

Long Name: Channel:Analog Input:Sound Pressure:dB Reference

Class: DAQmx Task

Permissions: Read/Write

Where This Property Is Available:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application

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