Could someone help interpret a snippet from some Arduino code I've been working on porting to Axo?
unvoicedSource = (synthRand & 1) ? synthEnergy : -synthEnergy;
I think what's going on is that the conditional evaluates if the least-significant bit of synthRand is a 1 or a 0, and sets unvoicedSource accordingly. I didn't know you could use integers directly as booleans like this though- I'd normally expect to see a numeric comparison, rather than a bitwise operation inside these brackets.
a|x
That seems the case, maybe it is just some code to convert from unsigned int to signed?
The integer as boolean is already done in many axoloti objects, where a 000000.. word equals to boolean 0 and anything else equals 1
Also, you can use conditions as numbers: (a<b) outputs a bit (1 or 0), which can eventually be multiplied by other stuff.
If, for example you want to model the friction force (which is 0 if speed=0 and const if speed=/=0 ) you could write something like this: friction = (!v=0)*const
It's effectively a 1-bit noise function, I think, with the conditional determining if the output is positive or negative, with the magnitude of the sample being determined by the synthEnergy variable.
a|x
Handy. Is that more expensive that an ordinary conditional/ternary statement i.e.
friction = (v == 0) ? 0 : const;
since there's a multiplication involved?
a|x