Hi everyone!
In my sound spectrum analyzer project, I'm using a MAX9812 mic preamplifier, an Arduino Nano and an OLED display. The mic preamplifier is powered with 3.3 V. Quite simple, but I'm having trouble because the microphone is not sensitive enough. Basically, I have to come very close to it, to shout in it to have some results on the OLED :/ It is not very practical, so if anyone could point out what I should do, I'd be grateful. I've tried to manipulate the code and to set the analogReference to external (the same voltage I'm using to supply the mic circuit) and it's a bit better, but still not satisfactory.
Is there a way to manipulate the code, or to add something to the circuit, or should I just buy a better microphone? If yes, which one?
If there are any other specifications you need, tell me.
Thank you all very much for the help.
In my sound spectrum analyzer project, I'm using a MAX9812 mic preamplifier, an Arduino Nano and an OLED display. The mic preamplifier is powered with 3.3 V. Quite simple, but I'm having trouble because the microphone is not sensitive enough. Basically, I have to come very close to it, to shout in it to have some results on the OLED :/ It is not very practical, so if anyone could point out what I should do, I'd be grateful. I've tried to manipulate the code and to set the analogReference to external (the same voltage I'm using to supply the mic circuit) and it's a bit better, but still not satisfactory.
Is there a way to manipulate the code, or to add something to the circuit, or should I just buy a better microphone? If yes, which one?
If there are any other specifications you need, tell me.
Thank you all very much for the help.
Attachments
-
45.9 KB Views: 11