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USB microphone and sensitivity value

I am recording voice signals using Apex440 Class-A FET cardioids condenser microphone directly connected to my computer via USB.  I have written the labview vi (data acquisition) using sound input read which has successfully read the waveform.  (vi attached)

 

The microphone has a sensitivity of -40dB = to 10mV/Pa.  When recording voice, the maximum amplitude in the graph is around 0.15-0.2.  How can I include the sensitivity value in the vi, so that the y axis represents SPL value?

 

Using Labview 2011 (32 bit) on a Window 7 machine. 

 

Thanks

 

Crawling

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@Crawling wrote:

 How can I include the sensitivity value in the vi, so that the y axis represents SPL value?


You can include it in Y-Axis's Scaling settings:

 

Setting Graph Scaling Properties


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