Search options (Page 26 of 137)

Nope. The noise in a DMG is created inside the semiconductor. A prosound mod is about as good as it gets. In your guitar, the pickups are likely completely passive so they are susceptible to picking up external noise, so the shielding makes more of a difference. Also, the shielding in the Gameboy is more likely to be for keeping things in than keeping them out.

And some trivia, there's actually some copper shielding in a DMG, on the back of the CPU board, soldered to it in 6 points.

To comment on what was said above. You can theoretically skip the optocoupler, yes, but preferably not using pins 4 and 5. Pins 4 and 5 are connected to +5V and the signal, respectively. You would have to ideally connect pin 2 to ground, and pin 5 to the input. With this way you probably need to add a pull-up resistor to guarantee that it would work with all MIDI sources. But doing this risks introducing hum since you now have a ground loop. This is what the MIDI standard originally set out to eliminate.

This doesn't make sense. The black marking should indicate the cathode on a 1n914, just like on a 1n4148. And there's no reason you should not reverse the diode either. It should always be pointing the opposite direction to the diode in the optocoupler, or it will mute the signal.

I would much rather than you put the heart on one of the heart code points instead of on the euro sign code point, such as U+2665, and put an actual euro sign on U+20AC, accessibility be damned.

Yeah, but adding a switch is also a risk. The switch may break during a gig or make the GB more crash-prone.

New goto80 in two days!

Preview: https://soundcloud.com/goto80/l-n-ce-ne … out-sunday

All the leeway you want, basically, with one caveat. With an original close to 4 MHz clock, the lowest possible frequency (because of hardware limitations) corresponds to about C-3. No problem. With a close to 2 MHz crystal, it would instead be C-2, which is just one octave below. (Often done to gain an extra octave of bass.) Also no problem.
If you put in say a 3 MHz crystal, the lowest frequency would be something G-2. You now have a couple of options. Make the scale start at G-2. Map everything to their true notes starting at C-3, and ignore the newly available half octave below C-3. Map everything to their true notes starting at C-2, but map C-2 to F#2 (or so) to the frequencies one octave above. It can be a bit extra tricky, but anything is possible, really.

Things to keep in mind though, too low clock frequency, LSDj or other software may run too slowly to play your song without lagging. Too high frequency, and you put a limit on how low notes you can play, and also, there's some limit on how hgh frequencies the CPU can tolerate.