First time poster; I have a Zynthian build v4 for about 2 months and wanted to use MOD-UI as an external effects chain.
The problem is I don’t seem have any audio input? I have tested output with a synth and this works. I’m also sure the audio input source works as this is tested aswell. When I just bypass all effects or just connect the inputs to the outputs, no sound is being passed through.
That sounds like you need to configure the inputs which can be balanced or single ended.
In webconf navigate to HARDWARE->Audio
Enable “Advanced view”
Under “Mixer Controls” click the “+” button
Change “ADC Left Input” and “ADC Right Input” - the options are:
“No select” - Disables input
“VINL1[SE]” - Configures as single ended TS
“VINL2[SE]” - Configures as single ended RS
“VINL2 [SE] + VINL1 [SE]” - Configures as mono from both single ended TRS
“{VIN1P,VIN1M}{DIFF}” - Configures as balanced TRS
I select “VINL2 [SE] + VINL1 [SE]” so that I can use a mono single ended input (unbalanced) or a stereo input for each channel. A stereo feed is monoed on that channel.