/diy/ - Do It Yourself

>>1131262
>>1131456
It works reasonably well. I learned a couple things that I'd change if I was redesigning it from scratch:
1. Cutoff frequency should be much higher - probably just below vocal threshold. I wanted to have it be in time to rhythm, but I didn't realize that rhythm would often cover most of the audio spectrum, such as drum hits, which are a short, almost white sound.
2. Use bigger resistors on the LPF and smaller caps.
3. R12 is a workaround. C5 was charging and would stop the circuit from working for some reason, but would slowly discharge and start working again when I probed it with my scope. Not sure what the cause is, or what a better fix would be.
4. Using an audio jack input would have been easier than the mic, since it's going to be sitting next to the DJ the whole time.