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ChipMusic.org / Forums / Posts by oliver
Hello,
when I put a 100 uF cap (no 470 uF on hand) on the 5V rail on the GB Color, it eliminates the hum and annoying high pitched noise (=noise filter mod). However, the same applied to GB Pocket actually increases the noise, especially the high frequency tone.
Is there a way to filter noise on GB Pocket, too?
Thank you.
I'd say no.
A touchscreen just can't provide a similar experience. Allthough you literally touch things on iPhone, pushing Game Boy buttons is so much more immersive.
Sequencer step control is one-dimensional on iOS, with continuous fading, while it's two-dimensional with discrete steps on Game Boy. The latter is more comfortable, it provides the feeling of "grip" that is typical for nanoloop and can't be ported to iOS.
And "step pause", a very useful feature introduced in 1.7 / 2.7 is currently missing on iOS.
Maybe sometimes a little signal runs thru the volcas in nanoloop. I am nit sure.
Please note that it is possible to get a seemingly working setup with wrong connections. In some cases, swapped GND and signal pins still let the slave see a sync pulse, but voltage levels are wrong.
So trial & error is NOT a good approach for finding the right connections, nor are wire colors.
Measuring the pin connections is obligatory.
OK, square waves as noise source don't work. because they aren't actually mixed but just binary ANDed (or ORed), they're too tonal and the noise part is very harsh.
so on the n channel you can choose between raw / filtered / modulated noise or dual square wave tones like on the r channel (but with a less bassy filter).
sounds wicked. I'm not personally a fan of the GB-style noise channel, but hey I'll work with it.
there are two styles
the base for the n channel is the white noise of a noisy amplifier (thermal noise i think). this noise can run through a sample & hold circuit with adjustable frequency, which sounds similar to an LFSR like the Game Boy's. the second stage is a filter.
both effects can be contolled independently.
instead of noise, two square waves may be used. this is not yet implemented, but i hope to achieve more hihat-like sounds with them later today.
added the second oscillator to the square wave channel, now working on filter LFO / envelope. here is a short example with slight detune of the squares:
https://soundcloud.com/nanoloop-test/na … -test-loop
noise now sounds much like the Game Boy's internal noise generator and it's nice to run that through a filter.
the filtered, hihat-like noises are a little low just for technical reasons (envelopes don't quite work yet), they can play much louder.
short loop playing some beats, with raw and filtered noises:
it is, indeed.
Yes.
current status:
a first volume of the carts has been produced (see the images posted earlier) and i am very pleased with the quality. they sound even better than the prototype and now go into "mass" production without changes.
software will be ready soon, too.
it uses the timer as clock, running @ 4096 hz. so you have a 1/4096 sec tempo resolution. which still doesn't give you 100% accurate bpm (except for multiples of 15) but should be more than sufficient for looped samples.
how about a separate thread for these projects? you totally deserve a new demo and i want to make one, but continuous talk about software inspired by nanoloop and comparisons to the 1000st digital 303-clone are not so inspiring.
but the function it serves when midi synched is the same as phoscyon, but without the
no.
GBA does not have that pin.
It's only DMG and GB Pocket. GB color has it, too, but its internal high-pass filter kills almost all of the bass while it amplifies the hiss and other noise. With the analog drums being almost sine waves, the effect is much more present than with GB square waves.
Pocket also has a high pass, but not quite as bad as GB Color. In GB pocket, you can bypass the high-pass by sticking two capacitors on the board, you don't even need to solder them. This may be possible on GB Color, too, I haven't tried it yet.
ChipMusic.org / Forums / Posts by oliver