Locate Noise floor level for a spectral data collected by a micro-controller in Python - Arduino https://www.tweaking4all.com/forum/arduino/locate-noise-floor-level-for-a-spectral-data-collected-by-a-micro-controller-in-python/ Tweaking4All.com Discussion Board en-US Tue, 09 Jun 2026 02:58:06 +0000 wpForo 60 RE: Locate Noise floor level for a spectral data collected by a micro-controller in Python https://www.tweaking4all.com/forum/arduino/locate-noise-floor-level-for-a-spectral-data-collected-by-a-micro-controller-in-python/#post-2939 Sat, 19 Dec 2020 10:51:38 +0000 Hi Ranjan ...

Ehm that quite the questions ... 😜 
I guess it depends on how you get the data (in what format) ?

]]> Arduino Hans https://www.tweaking4all.com/forum/arduino/locate-noise-floor-level-for-a-spectral-data-collected-by-a-micro-controller-in-python/#post-2939 Locate Noise floor level for a spectral data collected by a micro-controller in Python https://www.tweaking4all.com/forum/arduino/locate-noise-floor-level-for-a-spectral-data-collected-by-a-micro-controller-in-python/#post-2938 Sat, 19 Dec 2020 06:31:20 +0000 I have frequency spectrum which looks as such:

 

135

 

Below -40dB (as shown in red box), the data can be seen to have noise components.

How do we locate this (-40dB) without plotting the graph in Python?

If somebody could please let me know how do we go about this, I would be very much thankful.

]]> Arduino ranjanpal https://www.tweaking4all.com/forum/arduino/locate-noise-floor-level-for-a-spectral-data-collected-by-a-micro-controller-in-python/#post-2938