Resistanceisfutile
Member level 4
I want to make a SIMPLE low pass filter for an audio circuit, something similar to this:
https://en.wikipedia.org/wiki/Low-pass_filter#/media/File:RC_Divider.svg
I have some ceramic caps but they are low capacitance so I have to use high value resistors and then I get no sound (current too low?)
Could I use electrolytic capacitors to make a simple low pass filter?
Would I have to bias the audio signal?
https://en.wikipedia.org/wiki/Low-pass_filter#/media/File:RC_Divider.svg
I have some ceramic caps but they are low capacitance so I have to use high value resistors and then I get no sound (current too low?)
Could I use electrolytic capacitors to make a simple low pass filter?
Would I have to bias the audio signal?