fun a day 22
I'm going to try to make a quick thing a day during jan with my project.. some of those things might be music, some of them might just be pushing the software forward. Anyways, here is a little loop.
tdm for the drums and the first synth, sequencing the td-3 over midi.
I'm passing it through the m8, just for a little reverb & limiting.
fun a day 22
yesterdays progress:
bonked my head against usb audio for a while. For some reason only one of my prototypes works with usb and I didn't quite get it working all the way (only mono, and not duplex).
I also rebuilt the LUTs that are used for filters etc with the correct inputs, however it doesn't seem to make a huge difference. I need to dig in more.
fun a day 22
another night of fighting usb ... I made some distinct progress, but still getting some kind of regular distortion. I think it has to do with mismatched buffer size or something.
anyways, I made a quick low effort tune, and looked briefly at how to unfuck my envelopes (I failed at unfucking them tonight, too tired)
fun a day 22
Got new boards in the mail. The faceplate / back plates look great, I'm feeling semi confident about making a case for the whole unit.
I have a pretty spectacular fuckup in tbe big new chunk of hardware I added (power control system uses 1 ohm resistors instead of 100k ohm) but I was able to bodge everything into testability tonight.
At least one of the other fixes I made appears to work! Hopefully time tomorrow to check the other stuff.
fun a day 22
spent 4 hours last night trying to chase down some subtle distortion that is affecting all my output. I didn't figure it out :(
my current best guess is that the DAC isn't getting clean power, and thats where the noise is coming from? I'm pretty sure that the data I'm passing it is clean (I am just passing it straight signed ints from a wav file). But there are so many moving parts here its hard to tell.
fun a day 22
in more progressive news - i figured out why my batter powered unit is dying so quick, I'm using a voltage regulator that needs a 1v difference between its input and output. So when I pass it 4 v, it can only get 3 out. And the discharge curve for lipos is such that they only stay up above 4v for a short part of their discharge.
easy to fix, I found an alternate component to drop in already.
fun a day 22
@jonbro poop! !
at first i thought you meant the leds were making an audible sound somehow, but then I got it
fun a day 22
@ranjit yeah, the pwm that is controlling their brightness is leaking into the codec either via power or ground :(
I missed this before sending off the next rev, so now I have at least one more prototype to go
fun a day 22
added patterns & chaining.