Definitely not. You need to DC bias it and do some impedance matching.
I highly recommend you abandon the idea of rolling your own unless you're planning on going into production.
For now, I'm more interested in building it than using it.
Okay it looks like I should do a high pass for DC Bias and an L-section for impedance matching.
The input section does two things: buffer & boost, and filter.
This also means the signal will leave the pedal hotter so you then need to cut the signal after the digital processor.
Filtering: you need to remove any ultra-sonic or infra-sonic information before the signal goes into the codec.
And a 20khz low pass for the high stuff. Can I use a divider after the processor?
So basically my filtering would be: low pass -> high pass -> L-section
Unless the order matters.
Without deciding on which codec chip you are going to use you cannot design the audio input circuit as it may differ depending on the codec type you choose.
So certain codecs have some of the mentioned functions built in? Is there one in particular that you would recommend?
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Thank you to everyone. Very helpful.