SirSickSik Contributions

[SirSickSik]

and a sequencable variant with up to 8 bands and 16 randomisable presets
shows how to make use of the different filters
Note that the whole track is driven by a single saw oscillator!

equal EQ0.1.axp (50.4 KB)

[SirSickSik]

and another step in the equal-amplitude EQ.. lets let it glide and use envelopes on the seperate bands!
and several other useful modules that come along with it
Time for some acid!

debug update2
equal amp EQ morphed.axp (80.9 KB)

[hitachii]

The TZMMF object is insane. Played around with some heavy reverb while modulating the filter and resonance and got some terrifying (in a good way) haunted forest sounds out of it. That's just on the first mode, haven't even toyed around with the others yet!

[SirSickSik]

And a nice DJ-style stereo filter along the architecture of the eurorack "overseer" module of WMD to put at the end of your mix.

It's a quad filter that outputs the input through to the output when "center" is at zero (though resonance is still hearable and lp/hp offset can be added/subtracted in which case you do hear a difference at zero), but removes the lows when going higher in cutoff and removes the highs when going lower in cutoff.

Tilting options and lp/hp offsets are included to create a nice stereo field, turn it into a bp (turn up hp and turn down lp) or widen the center where's no response and limit the cutoff range (so it doesn't go as far down/up).

Mute function is filtered at audio rate and works as a (fast) crossfader, so you can drive it with fast gates for some kind of amplitude modulation.

Highpass filter can be oversampled so it can filter out all high frequencies at 4x oversampling (lowpass filter always filters out all frequencies at low cutoff, but this can be changed by setting "lp" to a higher value even though this means the lp filter will kick in later).

mix out filter.axp (28.2 KB)

[SirSickSik]

and a stereo oscillator to play around with
together with the morphing EQ it's a fun sound generator that goes all over the stereo field!
Try out a XY-scope on the oscillator itself to show it's "image generator" on your computer (if you have one that is... otherwise you might want to try the "soundcard scope" of C. Zeitnitz)

stereo image osc 3.axp (47.2 KB)

[SirSickSik]

btw, for the non-coders overhere...
I have quite a lot of oscillators, but not really a lot of LFO's in comparison.
but... if you like the waveforms coming out of an oscillator, you can try to copy the code that's in the a-rate code over into the k-rate code.
Then change all the audio inputs&outputs to fractional (so turn each red in/output into a blue in/output).

Often you will want to take down the frequency a couple of octaves. Then search for the place where the frequency is calculated, which is "MTOFEXTENDED(.......,.......)" (eg. MTOFEXTENDED(param_pitch,freq)).
Copy what's in the second half (in this case "freq") to the line below it and add ">>A" where A is the amount of octaves you want to lower the frequency.

"freq=freq>>8;"
or eg. in case of tables where "i" is used for selecting the index of the table: "freq[i]=freq[i]>>8;"

Et voilá, you just turned an oscillator into a LFO, together with all it's possible waveshapes and controls!

[MattilynMattroe]

Thanks for this, have been playing around coding lfos, and this gave me some ideas.

Though I've been having tons of fun modulating the TZMMF filter with oscillators recently! Pitch detector on input controlling 2 different oscillators offset by an octave into the fm input, sounds awesome!

[Blindsmyth]

mix out filter.axp (28.2 KB)

looks very promising, this was much needed. Especially that it can be a full range hp filter.

[SirSickSik]

the problem for a highpass filter is that the samplerate combined with the highest value output of the frequency calculation "MTOF(...,...)" is too low to be able to filter out all high frequencies, but if you oversample a highpass filter about 4 times, it should be able to make the difference between the LP-filter and the input so small, that it effectively filters out all frequencies. To create oversampling on any (in this case highpass) filter, try putting a code within a for-loop like this:

for(int i=0;i<4;i++)
{
val=___SMMLA(inlet _in - val<<1,f,val);
}
outlet_out=inlet_in-val;

note that I had to add a space between "inlet" and "_in", otherwise the browser won't display the underscore.. but of course, they should be connected without the space in the actual code.
You can of course add an integer controller instead of "4" to set it to any oversampling you like (lowest number should be 1, otherwise the loop stops before it has done anything).