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ChipMusic.org / Forums / Posts by nitro2k01
Look here for infoz:
http://blog.gg8.se/wordpress/2011/08/14 … di-and-me/
In short: You can sequence notes and drums, sync it via MIDI and control all parameters on the right side of the panel, except for the mix levels.
For a demonstration, check out the MIDI in video in that post, in particular 1:45 and forward for a proof of concept of what you can do over MIDI.
Never tracked on paper. I have however written Gameboy assembly code on paper.
Well, as far as I know, there has only ever been one minus vote, even though it's not mentioned in the master list. The idea is that if it ever happens (again), there should be a description why the trader received negative feedback, so people can read it and make up their own mind.
How does it feel when you insert the EMS cartridge on one 'boy or the other? Does one feel like a slightly snugger fit than the other?
µB: That one and any one that contains a string is "cheating". Instead of generating the sound algorithmically, the content is sequenced and stored as a string. While certainly still cool, I think it's no longer made in the same original spirit. You're no longer just letting the numbers speak.
Did you put a resistor on the signal wire, though? That's highly recommended for protection...
It seems like it's got the right height, but a 16 mm diameter seems a bit much. (Don't have an opened boy around so I can't check, but it looks like it's smaller than that from the outside.)
You're probably going to have a hard time finding one that fits the form factor and pinout. It's just a simple voltage divider, so a wide range of values with the same form factor would work.
I'd probably recommend a transplant from a broken boy, or using this one for pre-pot (no-pot) prosound only.
This was recently posted on that other site, 8bit something, by Jazzmarazz. You need the right polarity. It needs to be DC, not AC. Other than, the voltage can be in the 5-7 volts. However, I'd just ditch the idea and use rechargeable batteries.
Chainsaw Police: That's something different. That just means that you're getting bad contact for a short while when you move it around. The same would happen if the same plug was attached to a battery pack.
Terbografx: Did this happened when you loaded the songs, or could it happen anytime?
Timbob: Sounds like something the value for global transpose or some instrument transpose. Either you did it accidentally, or there was a glitch. (Those happen...)
Oh wait, I'm an idiot. I skipped the boring part and only looked at the code.
odinpants: Correct me if I'm wrong, but if you set DDRB to B00001111, doesn't that mean you're only outputting the 4 lower bits?
Finally a home for bad PRNGs!
Actually, I misread the code. Rather than being LFSRs, these things produce their out value only from the index from the counter. There is no feedback, so by default, the code works in divisions of two of the sample frequency (/2, /4, /8 and so on.) It might still qualify as a PRNG (pseudo-random number generator) given a random-like enough function. In particular, you'd need to mix in some multiplication, division or modulo by some "good" number, preferably add or even prime.
And anyway, I'm writing a huge-ass post about the theory behind all this. Hopefully it'll be done before the weekend ends.
Not circular. That operation is actually usually called a rotation.
µB: t is an int, 32 or 64 bits or so. The clever thing here is that they define t as the argument to main, which shaves away a few bytes of source code (Normally int t; or so). putchar also takes an int, but as far as I understand it, it truncates the output to 8 bits, which is what gets sent to stdout and then into /dev/audio.
This is really a form of extended linear feedback shift register, a bit like, you guessed it, shitwave. And this might serve as inspiration for a new version of just that in the future.
ChipMusic.org / Forums / Posts by nitro2k01