[{"data":1,"prerenderedAt":155},["ShallowReactive",2],{"$f3f8boctnjw72q":3},{"type":4,"name":5,"blurb":6,"color":7,"category":8,"about":9,"description":10,"aboutHtml":9,"howHtml":11,"inputs":12,"outputs":22,"controls":26,"tryHtml":39,"lessons":42,"guides":123,"terms":127,"siblings":138},"vcf","Filter","Resonant multimode filter. CV is exponential: ±1 × amount = ±4 octaves.","#7cff6b","Shapers","Voltage-controlled filter — removes some frequencies to change the tone. The most expressive module in a synth.","Voltage-controlled filter — removes some frequencies to change the tone. The most expressive module in a synth. Every input, output and knob explained…","LP (low-pass) lets lows through and cuts highs — turning Cutoff down makes it darker. HP does the opposite, BP keeps only a band, NOTCH removes one. Res(onance) boosts the frequencies right at the cutoff for a squelchy, whistling peak. The cutoff can be moved by signals: CV is scaled by CV Amt (±1.0 × 100% = ±4 octaves), \u003Ca class=\"term\" href=\"\u002Flearn\u002Fglossary#v-oct\" title=\"The pitch standard: each +1 on the input raises the pitch by one octave.\">V\u002FOCT\u003C\u002Fa> moves exactly 1 octave per 1.0.",[13,16,19],{"label":14,"html":15},"IN","The audio to filter.",{"label":17,"html":18},"CV","Moves the cutoff, scaled by CV Amt. \u003Ca class=\"term\" href=\"\u002Flearn\u002Fglossary#patch\" title=\"A set of connections between modules, and the sound it makes.\">Patch\u003C\u002Fa> an \u003Ca class=\"term\" href=\"\u002Flearn\u002Fglossary#lfo\" title=\"An oscillator too slow to hear, used to move other things automatically.\">LFO\u003C\u002Fa> here for a sweep, or an \u003Ca class=\"term\" href=\"\u002Flearn\u002Fglossary#adsr\" title=\"Attack, Decay, Sustain, Release: the four stages of the most common envelope.\">ADSR\u003C\u002Fa> for a “wow” on every note.",{"label":20,"html":21},"V\u002FOCT","Key tracking — moves the cutoff 1 octave per 1.0, so patch the same pitch signal your \u003Ca class=\"term\" href=\"\u002Flearn\u002Fglossary#oscillator\" title=\"A sound source that repeats a wave shape over and over, making a pitched tone.\">VCO\u003C\u002Fa> gets and high notes stay as bright as low ones.",[23],{"label":24,"html":25},"OUT","Filtered audio.",[27,30,33,36],{"label":28,"html":29},"LP \u002F BP \u002F HP \u002F NOTCH","\u003Ca class=\"term\" href=\"\u002Flearn\u002Fglossary#filter\" title=\"Removes part of the frequency range, making a sound darker, thinner or more focused.\">Filter\u003C\u002Fa> type.",{"label":31,"html":32},"Cutoff","The centre point that \u003Ca class=\"term\" href=\"\u002Flearn\u002Fglossary#cv\" title=\"A signal used to control a parameter rather than to be heard.\">CV\u003C\u002Fa> moves around.",{"label":34,"html":35},"Res","\u003Ca class=\"term\" href=\"\u002Flearn\u002Fglossary#resonance\" title=\"Boosts the frequencies right at a filter’s cutoff, adding a whistling, vocal peak.\">Resonance\u003C\u002Fa> — emphasis at the \u003Ca class=\"term\" href=\"\u002Flearn\u002Fglossary#cutoff\" title=\"The frequency where a filter starts cutting.\">cutoff\u003C\u002Fa>.",{"label":37,"html":38},"CV Amt","How far the CV input moves the cutoff. Negative = inverted (CV closes the filter).",[40,41],"Filter sweep with an LFO: VCO SAW → Filter IN, LFO ± → Filter CV, Filter OUT → Output. Set Cutoff around 800 Hz, Res ~10, then raise CV Amt. LFO Rate sets the sweep speed; LFO Depth × CV Amt sets how wide it is.","Use the LFO “+” output instead of “±” to only sweep upward from the Cutoff knob.",[43,48,53,58,63,68,73,78,83,88,93,98,103,108,113,118],{"slug":44,"name":45,"title":46,"n":47},"03-subtractive-synthesis","03 · Subtractive Synthesis","Subtractive Synthesis",3,{"slug":49,"name":50,"title":51,"n":52},"04-movement-with-lfos","04 · Movement with LFOs","Movement with LFOs",4,{"slug":54,"name":55,"title":56,"n":57},"05-mixer-fat-sounds","05 · Mixer: Fat Sounds","Mixer: Fat Sounds",5,{"slug":59,"name":60,"title":61,"n":62},"07-clock-and-sequencer","07 · Clock & Sequencer","Clock & Sequencer",7,{"slug":64,"name":65,"title":66,"n":67},"11-noise-wind-and-hats","11 · Noise: Wind & Hats","Noise: Wind & Hats",11,{"slug":69,"name":70,"title":71,"n":72},"17-wavetable-and-pwm","17 · Wavetable & PWM","Wavetable & PWM",17,{"slug":74,"name":75,"title":76,"n":77},"23-slew-glide-anything","23 · Slew: Glide Anything","Slew: Glide Anything",23,{"slug":79,"name":80,"title":81,"n":82},"24-scale-offset-signal-surgery","24 · Scale\u002FOffset: Signal Surgery","Scale\u002FOffset: Signal Surgery",24,{"slug":84,"name":85,"title":86,"n":87},"25-chords-and-arpeggios","25 · Chords & Arpeggios","Chords & Arpeggios",25,{"slug":89,"name":90,"title":91,"n":92},"26-polyphony-play-chords","26 · Polyphony: Play Chords","Polyphony: Play Chords",26,{"slug":94,"name":95,"title":96,"n":97},"27-stereo-and-sidechain","27 · Stereo & Sidechain","Stereo & Sidechain",27,{"slug":99,"name":100,"title":101,"n":102},"29-switch-a-new-melody-every-bar","29 · Switch: A New Melody Every Bar","Switch: A New Melody Every Bar",29,{"slug":104,"name":105,"title":106,"n":107},"37-xy-pad-play-by-touch","37 · XY Pad: Play by Touch","XY Pad: Play by Touch",37,{"slug":109,"name":110,"title":111,"n":112},"38-lorenz-chaos","38 · Lorenz: Chaos","Lorenz: Chaos",38,{"slug":114,"name":115,"title":116,"n":117},"41-gamepad-and-phone-tilt","41 · Gamepad & Phone Tilt","Gamepad & Phone Tilt",41,{"slug":119,"name":120,"title":121,"n":122},"42-mic-and-envelope-follower","42 · Mic & Envelope Follower","Mic & Envelope Follower",42,[124],{"slug":125,"title":126},"filters","Filters: carving the sound",[128,131,134],{"id":129,"term":5,"short":130},"filter","Removes part of the frequency range, making a sound darker, thinner or more focused.",{"id":132,"term":31,"short":133},"cutoff","The frequency where a filter starts cutting.",{"id":135,"term":136,"short":137},"resonance","Resonance","Boosts the frequencies right at a filter’s cutoff, adding a whistling, vocal peak.",[139,143,147,151],{"type":140,"name":141,"blurb":142,"color":7},"vca","VCA","Amplifier. Out = IN × (bias + CV × amt). Audio-rate CV = ring mod.",{"type":144,"name":145,"blurb":146,"color":7},"vowel","Vowel","Formant filter that makes things talk. A · E · I · O · U.",{"type":148,"name":149,"blurb":150,"color":7},"drive","Drive","Saturation, hard clip, or a wavefolder.",{"type":152,"name":153,"blurb":154,"color":7},"lpg","Low-Pass Gate","A filter and VCA that close together with a natural, plucky decay. Strike it to play a note.",1792599838455]