time domain analysis via onboard microphone on SPEEDY-33

[BK Lian]

Hi,

I have attached a screenshot of the time domain waveform graph. The signal is measured via the onboard microphones on the SPEEDY-33. The peak amplitude is 557 and the RMS value is 236.23 (the values look "too high", probably in digitlize value). Hence, how do I relate back to the input voltage measured?

 Thanks in-advance!

Regards

Bee Kwang

[RavensFan]

Duplicate Post.