banjokazooie wrote: ↑Sun Apr 08, 2018 2:08 pmA basic double coil on the power line to audio amp will filter all the noise.AntFJ wrote: ↑Sun Apr 08, 2018 10:29 amI have a Wii U Ras Pi 3 and I get horrible sound from USB audio - lots of static/whine.banjokazooie wrote: ↑Sun Feb 18, 2018 8:54 am
There is too much noise on the audio line from this lcd board. USB card is better and you still need to filter the power line to amp for clear sound.
Teensy is reading analog voltage of the led on compute stick to signal the power state.
When you say filter the power line to the amp are you talking the +5V? or a high/low pass filter for the +audio line? If the former... can you elaborate?
You're a life saver! I've been trying to learn as much as I can about what the coil (inductor) is doing in the circuit. I also added a bunch of bypass capacitors - now I don't get a lightning bolt at startup and the noise coming out of the speakers are gone.