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embe
README.md
embe.pixi
embe_test.pixi
test.pixi

README.md

Embe

Pixilang library for modular audio synthesis

include "embe.pixi"

// Create 2 square waveform oscillators, 220Hz (A3) and 330Hz (E4), 
// amplitude 0.1 (amplitude value from 0 to 1)
$o1 = osc_sqr(220, 0.1) 
$o2 = osc_sqr(330, 0.1)

// Create noise oscillator 
$o3 = osc_noise(0.5) 

// Create mixer
$mix = mix()

// Join ("j") our oscillators to the mixer
j($mix, $o1)
j($mix, $o2)
j($mix, $o3)

// Create band-pass filter with cutoff frequency == 110Hz 
// and resonance value = 100% (if we will use value > 100)
// filter will start to self-oscillate
$hz = 110
$f = flt_bp($hz, 100)
j($f, $mix)

// Create visualizer
$v = vis()

// Join our filter to visualizer
j($v, $f)

// Send our filter to the output
out($f)

$d = 1
while (1) {    
    // Some cutoff modulation
    if TICK > SRATE / 4 {
        TICK - SRATE / 4
        $hz * pow(2, $d / 12)

        if $hz > 880 * 4 {
            $d = -1
        } 

        if ($hz < 110) {
            $d = 1
        }

        $f.Freq = $hz
    }

    // Some visualization
    $v.render($v)
    
    while( get_event() ) { if EVT[ EVT_TYPE ] == EVT_QUIT { halt } }
}

Result