Hello,
Project time. Im trying to make an existing Arduino sound sensing circuit have it's mic signal be processed through this A weighting circuit. Im using a regular Electret Condenser mic.
Im attempting to combine these two circuits but when I do I no longer get any response from my LEDs.
I have used the breadboard cct IC output from Pin 5 as my Input to the filter cct, and the Output of the filter cct as the new Arduino A5 (bottom right) Input.
I am reading 2.4V at Arduino A5 whether I use the bottom cct on its own or add in the A weighting cct as described? I therfore take it my filter cct is delivering an ouput.
I have read that Impedance matching is not my most likely problem at the Audio Frequencies (low power) concerned.
I do not have a spectrum analyser. I have perhaps been over ambitious given my basic Electronic knowledge.
Any help would be much appreciated.
Please be brutally honest what you think!!
Project time. Im trying to make an existing Arduino sound sensing circuit have it's mic signal be processed through this A weighting circuit. Im using a regular Electret Condenser mic.
Im attempting to combine these two circuits but when I do I no longer get any response from my LEDs.
I have used the breadboard cct IC output from Pin 5 as my Input to the filter cct, and the Output of the filter cct as the new Arduino A5 (bottom right) Input.
I am reading 2.4V at Arduino A5 whether I use the bottom cct on its own or add in the A weighting cct as described? I therfore take it my filter cct is delivering an ouput.
I have read that Impedance matching is not my most likely problem at the Audio Frequencies (low power) concerned.
I do not have a spectrum analyser. I have perhaps been over ambitious given my basic Electronic knowledge.
Any help would be much appreciated.
Please be brutally honest what you think!!
Attachments
-
54.4 KB Views: 69