Ring modulator below 20hz

[Morphoice]

@HISEnberg

@HISEnberg said in Ring modulator below 20hz:

process = ((1 - wet_dry)*,(*os.osc(freq))*wet_dry);

how would I make this stereo?

process = (_*os.osc(freq))*wet_dry,(_*os.osc(freq))*wet_dry);

gives me a stereo ringmodulated signal but
completely loses the dry signal. I don't fully get the syntax yet

[HISEnberg]

@Morphoice Oh and I forgot to adjust it, but the hslider is presetned in this format: defaulValue, minValue, MaxValue, stepSize. So if you want to lower it all the way down to 1Hz just change the freq slider:

freq = hslider("freq[name:Freq]", 240, 1, 1600, 0.5);

[Morphoice]

@HISEnberg that I got, just not how to make the signal stereo without losing the dry signal when dry/wet is turned down...

[HISEnberg]

@Morphoice Yes sorry I am using my laptop speakers but I see how I messed that up, I think this should resolve it:

declare id   "ring_modulator";
declare name "Ring Modulator Stereo";
declare shortname "Ring Modulator";
declare category "Modulation";

import("stdfaust.lib");

// Parameters
freq = hslider("freq[name:Freq]", 240, 1, 1600, 0.5);
wet_dry = hslider("dry/wet[name:Mix]", 0.5, 0, 1, 0.05);

// Ring mod function
ring_modulate(input) = (1 - wet_dry) * input + wet_dry * (input * os.osc(freq));

// Process stereo signal, the _, _ repersent the left and right input
process = _, _ :> ring_modulate, ring_modulate;

Also typically, I won't use the dry/wet within faust itself. Instead I would use the Scriptnode dry/wet template. It doesn't make it difference, but it could if you want to do further processing within Scriptnode. Either way works fine.

[Morphoice]

@HISEnberg said in Ring modulator below 20hz:

process = _, _ :> ring_modulate, ring_modulate;

works perfect thanks.
that process syntax is something I really have to look at.

"_" is the original signal, that I got.
"*" is self explanatory, but the rest... gotta binge some tutorials

[HISEnberg]

@Morphoice This is how I got started with it, though I don't think it is the greatest tutorial series I have watched: https://www.kadenze.com/courses/real-time-audio-signal-processing-in-faust/info

Romain Michon is the GOAT when it comes to Faust resources so just finding his course lectures and online material is good place to start.

[Morphoice]

@HISEnberg superb I'll work through that tonight.

I'm playing around with the examples

process =   dm.greyhole_demo;

is a great one... How would I add a dry_wet slider to that?

[HISEnberg]

@Morphoice Scriptnode dry wet template is what I would do. If you want to edit source code in Faust, you need to look through their libraries (lib) online and in github:

https://github.com/grame-cncm/faustlibraries/blob/3e74c39a9fc7c00c1b4caceff2731af643706181/reverbs.lib

[Morphoice]

@HISEnberg scriptnode dry/wet. I feel stupid. ;)))))

[Morphoice]

@HISEnberg well the library looks easy enough.

 greyhole(dt, damp, size, early_diff, feedback, mod_depth, mod_freq)
        = (si.bus(4) :> seq(i,3,diffuser_nested(4,ma.PI/2,(-1^i)*diff,10+19*i,size))
            : par(i,2,si.smooth(damp_interp)))
        ~((de.fdelay4(512, 10 + depth + depth*os.oscrc(freq)),de.fdelay4(512, 10 + depth + depth*os.oscrs(freq)))
            : (de.sdelay(65536,44100/2,floor(dt_constrained)),de.sdelay(65536,44100/2,floor(dt_constrained)))
            : par(i,2,*(fb)))
        with {
            fb = feedback:linear_interp;
            depth = ((ma.SR/44100)*50*mod_depth):linear_interp;
            freq = mod_freq:linear_interp;
            diff = early_diff:linear_interp;
            dt_constrained = min(65533,ma.SR*dt);
            damp_interp = damp:linear_interp;
            linear_interp(x) = (x+x')/2;
        };

to design an entire reverb is wow. ofc the real magic happens in the diffusor and delay blocks but that needn't concern me

[Morphoice]

@HISEnberg said in Ring modulator below 20hz:

Romain Michon is the GOAT when it comes to Faust resources so just finding his course lectures and online material is good place to start.

funny enough I'm already subscribed to him on youtube lol