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.
Long Name: Channel:Analog Input:Sound Pressure:dB Reference
Class: DAQmx Task
Where This Property Is Available:
Desktop OS: Windows
FPGA: Not supported
Web Server: Not supported in VIs that run in a web application