I’m working on an Auduino (Arduino-based synthesizer, info here: http://code.google.com/p/tinkerit/wiki/Auduino).
After connecting the wires correctly (nothing is soldered yet) I’ve noticed that the volume is rather low compared to videos I’ve seen on the internet.
I couldn’t find any solutions to the problem until I accidentally put my finger on the six ISCP pins while testing it. This increased the volume a lot. When I released my finger the volume goes down again.
My question is: What is causing the volume to go up? Is this supposed to happen? Is placing my finger on these pins in any way damaging it? Can I perhaps make use of this? I really do not think my Auduino should be operating at a volume so low that I can barely hear it at max volume, while I’m almost going deaf playing music at that level.
I’ve tried connecting the jack to a Fiio E07K amplifier (with headphones connected) and a large guitar amplifier. I’m using a Arduino Uno R3.
These are the pins I am talking about