Hi all,
I bought such a shield from Tindie. Product description: http://blackaddr.com/products/
It’s like my TeensyMIDIAudio board which I am using for MicroDexed and MicroMDAEPiano but with a good PreAmp for inputs from Mic, Line and Guitar. Also onboard MIDI and (as extension) headphone and/or SPI memory for longer delays etc.
And it runs my MicroDexed/MicroMDAEPiano sketches nearly on the fly:
Regards, Holger