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Topics by jefftheworld
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Awesome, I'll check that out when I'm done with molyjam.
Nice website.
Downloaded the release and I'll check it out after this weekend.
I can imagine taking a mainboard PCB being placed in a small enclosure with an mGB cart and an arduinoBoy. A singlesmall package DMG synth module.
Timbob wrote:nitro2k01 wrote:Yeah, the CPU doesn't know whether there's a screen attached. You won't have any direct button input however, so there's that. You could get around that with some planning. Say put LSDj in slave mode and start the playback from the other side of the link cable. Or use it for MIDI.
You'd still need to press start in lsdj to get it to sync...
mgb and midi should work, right?
Wiring a single button for start would be possible, too.
futura2012 wrote:Does anyone know of a good starting place for SB16 newbie and ideally a place for decent drivers?
I have a SB16 CT1740 with a NEC XR385 daughter board. I have a Win98 Music PC currently running a lexicon Studio Core 32 system and was interested in adding some more sounds.
I heard some samples of stuff created on OPL3 and it sounds awesome.
I currently have no drivers. I have no idea what software I would need to trigger or program the OPL3 and could really do with some getting started help.
Hope someone knows a little more than me.
Make sure your IRQs are correct and then just run Adlib Tracker. I'm not sure if there are features of the SB16 that require drivers but my MS-DOS + SB16 + Adlib Tracker worked with no additional installs.
My artist identity is just myself but from space.
Mister Sombrero wrote:I made some basic waveform samples at A440 on audiocheck.net (440Hz, 1 sec, -3db, 8Khz).
I cut them down to be single cycle waveforms using renoise, chopping at zero crossing to get exactly 1 cycle.
Loaded them into LGPT. Changed to oscillator mode...loop end was 12, Root note was A... every note was played out of tune...
After I changed the root note to Csharp..every note was played perfectly in tune (notes in the pattern editor matched the pitch of notes played).
LGPTs oscillator mode works in a weird way.
I tried single cycle waves (from the same website) at A440,44.1Khz as well and these were not really tuneable. No matter what the root note was, the pitches did not reflect the notes shown in the pattern editor. weird.
Seems like the oscillator mode requires a particular length of ?A440? single cycle wave, perhaps also a particular sampling frequency to work properly...maybe it matches gameboy waveforms or SID waveforms or something else?
I know that it assumes oscillator waveforms to be at A440 and adjusts accordingly so you're supposed to leave the root note at C.
A single cycle at a given pitch at a given sample rate will be an exact length. Cutting several data points short or long will start to detune the pitch. This will be more apparent at lower sample rates as each data point will represent a longer period of real time.
I happen to have just posted a tutorial on using audacity to create SCWFs: http://www.youtube.com/watch?v=kjPR9tEKe_s
If you want to tune to A440, just replace the frequency for middle C that I provided and use (you guessed it) 440Hz instead.
With that tutorial you can generate a single sine, square or saw and the edit it by hand to alter the timbre. You can draw additive or combination waveforms that mimic how certain old soundchips would sound or create entirely new and interesting timbres.
Awol wrote:I've read that converting a C64 between NTSC and PAL requires swapping the VIC-II chip and crystal, and connecting a jumper. Surprisingly simple. Even better, the VIC-II in my C64C is socketed. It would be cool though to have both NTSC and PAL selectable with a switch, on a board that plugs into the C64's VIC-II socket. Unfortunately, 40PDT switches (because the VIC-II has 40 pins) don't seem to exist, and if they did they'd be a pain to wire up. I'd like to design a functional equivalent. I don't know that much about electronics, just enough to follow other people's instructions for modding, but I've never designed anything from scratch before. So maybe my ideas will sound naive...
Transistors can work like switches right? What if the line coming from each socket pin on the motherboard splits into a Y, with one direction going to the NTSC VIC-II and the other direction going to the PAL VIC-II. Each chip would have a transistor per pin. Have an SPDT switch to apply voltage to the bases of every transistor, with one throw connected to the NTSC chip's transistors, and the other throw connected to the PAL chip's transistors. Except... I was reading about the VIC-II and it seems like some of the pins are both input and output. Is that correct? Transistors only allow current to flow one way. I read that triacs are similar to transistors but are designed for AC currents and allow flow both ways. Maybe triacs could be used instead.
Would this even work?
Even if it did, is there a better way that doesn't involve soldering 80 transistors or triacs? Some kind of IC?
There are transistor ICs that you cam use that'll give you a whole array of them in a small package but there will inevitably be a lot of soldering. Another option is to go with very small components. I always have a load of surface mount digital transistors (MMUN2211 work great as switch replacements). Some people get scared of surface mount but it's actually not that hard to learn and doing a large number in a row will actually go pretty quickly once you the the hang of it.
In any case, you'll want to tie the bases of every single transistor together so that they each activate simultaneously and as a safety feature you might want to set up a simple circuit that cuts the C64 power if you attempt to switch modes - a DPCO switch that cuts power in the center position just to be safe when switching modes, maybe? I'm not entirely sure what the best solution would be in that sense.
ClairBear wrote:Curious question, I always wondered if we should have a general thread for Stockwave or use this post?
I think that this one thread is enough. Stockwave is all about efficiency.
I'll be there dancing like an idiot, as usual.
:3
Make love, wake up early - around 5 or 6 in the morning, just after the sun has come up. Put a pot of coffee on and do some stretches to really wake up but don't linger. Pack a small bag with some portable music equipment and an energy drink to stay hydrated and to keep your focus. Head out to some quiet, out of the way place - a public park, shady bench, whatever feels right - but don't start making music right away. Spend some time just enjoying the morning, avoid thinking about anything in particular, just let yourself relax. Just before you start, close your eyes and clear your mind and spend about a minute just focusing on your breathing. Open your eyes and begin to write.
Alternatively, you can just chug like 4-5 energy drinks and get about the same effect.
I'm just glad I could bring some scoobycore back into the world.
Teaser + Neil Baldwin. Best Wednesday ever!
Fuck hardware and software. I make music purely with wetware.
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ChipMusic.org / Forums / Posts by jefftheworld