I'm working on a hybrid monophonic synthesizer using the Teensy 3.5 and Teensy Audio Board to produce the oscillator waveform and control signals, which then go to an analog filter and VCA.
I had intended to use one of the two channels of the audio board to produce control voltage for the analog filter cutoff, but I have realized the line outs are AC-coupled and thus unsuitable for relatively slow-changing CV.
I'm considering just removing the AC-coupling caps from my audio board. It looks like the row of 4 passives between the SGTL5000 and the line in/out header are the coupling caps for the inputs and outputs; would there be any particular problem just removing those and replacing them with jumper wires?
The SGTL5000 datasheet implies the headphone outs are DC-coupled, so that might be an alternative as well.
I had intended to use one of the two channels of the audio board to produce control voltage for the analog filter cutoff, but I have realized the line outs are AC-coupled and thus unsuitable for relatively slow-changing CV.
I'm considering just removing the AC-coupling caps from my audio board. It looks like the row of 4 passives between the SGTL5000 and the line in/out header are the coupling caps for the inputs and outputs; would there be any particular problem just removing those and replacing them with jumper wires?
The SGTL5000 datasheet implies the headphone outs are DC-coupled, so that might be an alternative as well.