It wasn’t doing what I thought it should. This continued for quite some time. So, gasp shock horror, I asked someone. And richdrich said “they’re bipolar inputs”, and I went “eh?”, and he said “put a resistor just there”, and then it worked.
So the sound input circuit is working enough* that it can be tested using external inputs. To the right of the test setup you’ll see one such external transducer.
And in other news, tunes, contempory dance, sunshine, training, cartwheels, arms like noodles, gelato, sleeping. Like usual.
And Charlie Stross is on fine form today, pointing out the downright weirdness of having “ Taikonauts space-walking overhead while the chairman of the Federal Reserve is on his knees?“. But it’s happening right now. Still, I’m not sure that I agree with his conclusion that this is the collapse of the American empire. Space walks and financial crises are just part of progress, the difference being that nations gorw out of the space walk stage and on to more useful things. Financial crises are a recurring part of the adult stage of the empire lifecycle, like parties and hangovers, and empires can survive through quite a few of them.
* – where “working enough” means, as usual, still needing pfaffing with, but working more than it was before.