feat: full FX palette expansion — 32 new effects
Adds all 27 new DSP implementations plus tests and parameter schemas: Pitch & Frequency (5): octaver, pitch_shifter, harmonizer, whammy, detune Modulation (7): ring_modulator, auto_wah, envelope_filter, rotary_speaker, uni_vibe, auto_pan, stereo_widener Drive & Saturation (3): bitcrusher, wavefolder, rectifier Dynamics (4): expander, de_esser, transient_shaper, sidechain_compressor Filters & EQ (6): parametric_eq, high_pass_filter, low_pass_filter, band_pass_filter, notch_filter, formant_filter Time-Based (6): ping_pong_delay, multi_tap_delay, reverse_delay, tape_echo, shimmer_reverb, looper Ambience (1): early_reflections Each effect has: DSP function (5-30 lines numpy), case dispatch entry, parameter schema in _FX_PARAM_SCHEMAS, and tests for critical effects. CPU-heavy effects (pitch_shifter, shimmer_reverb) tagged as BETA. All 79 tests pass.
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+1268
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@@ -9,6 +9,7 @@ from typing import Optional
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class FXType(enum.StrEnum):
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"""Types of effects in the pedal signal chain."""
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# Existing
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NOISE_GATE = "noise_gate"
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COMPRESSOR = "compressor"
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BOOST = "boost"
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@@ -27,6 +28,45 @@ class FXType(enum.StrEnum):
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REVERB = "reverb"
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VOLUME = "volume"
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TUNER = "tuner"
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# Pitch & Frequency (5)
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OCTAVER = "octaver"
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PITCH_SHIFTER = "pitch_shifter"
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HARMONIZER = "harmonizer"
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WHAMMY = "whammy"
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DETUNE = "detune"
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# Modulation (7)
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RING_MODULATOR = "ring_modulator"
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AUTO_WAH = "auto_wah"
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ENVELOPE_FILTER = "envelope_filter"
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ROTARY_SPEAKER = "rotary_speaker"
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UNI_VIBE = "uni_vibe"
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AUTO_PAN = "auto_pan"
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STEREO_WIDENER = "stereo_widener"
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# Drive & Saturation (3)
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BITCRUSHER = "bitcrusher"
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WAVEFOLDER = "wavefolder"
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RECTIFIER = "rectifier"
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# Dynamics (4)
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EXPANDER = "expander"
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DE_ESSER = "de_esser"
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TRANSIENT_SHAPER = "transient_shaper"
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SIDECHAIN_COMPRESSOR = "sidechain_compressor"
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# Filters & EQ (6)
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PARAMETRIC_EQ = "parametric_eq"
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HIGH_PASS_FILTER = "high_pass_filter"
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LOW_PASS_FILTER = "low_pass_filter"
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BAND_PASS_FILTER = "band_pass_filter"
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NOTCH_FILTER = "notch_filter"
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FORMANT_FILTER = "formant_filter"
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# Time-Based (6)
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PING_PONG_DELAY = "ping_pong_delay"
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MULTI_TAP_DELAY = "multi_tap_delay"
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REVERSE_DELAY = "reverse_delay"
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TAPE_ECHO = "tape_echo"
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SHIMMER_REVERB = "shimmer_reverb"
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LOOPER = "looper"
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# Ambience (1)
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EARLY_REFLECTIONS = "early_reflections"
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@dataclass
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@@ -744,6 +744,176 @@ _FX_PARAM_SCHEMAS: dict[str, list[dict]] = {
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"volume": [
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{"key": "level", "name": "Level", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.8},
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],
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# ── Pitch & Frequency ──────────────────────────────────────────
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"octaver": [
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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"pitch_shifter": [
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{"key": "shift", "name": "Shift (semitones)", "type": "float", "min": -12.0, "max": 12.0, "step": 0.5, "default": 0.0},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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"harmonizer": [
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{"key": "shift", "name": "Shift (semitones)", "type": "float", "min": -12.0, "max": 12.0, "step": 0.5, "default": 3.0},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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"whammy": [
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{"key": "bend", "name": "Bend", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.0},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.7},
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],
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"detune": [
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{"key": "depth", "name": "Depth", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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# ── Modulation ─────────────────────────────────────────────────
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"ring_modulator": [
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{"key": "rate", "name": "Rate (Hz)", "type": "float", "min": 10.0, "max": 2000.0, "step": 10.0, "default": 100.0},
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{"key": "depth", "name": "Depth", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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"auto_wah": [
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{"key": "sensitivity", "name": "Sensitivity", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "q", "name": "Q", "type": "float", "min": 0.5, "max": 10.0, "step": 0.1, "default": 2.0},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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"envelope_filter": [
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{"key": "decay", "name": "Decay", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "range", "name": "Range", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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"rotary_speaker": [
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{"key": "speed", "name": "Speed", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "drive", "name": "Drive", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.3},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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"uni_vibe": [
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{"key": "rate", "name": "Rate (Hz)", "type": "float", "min": 0.05, "max": 5.0, "step": 0.05, "default": 0.8},
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{"key": "depth", "name": "Depth", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "feedback", "name": "Feedback", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.3},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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"auto_pan": [
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{"key": "rate", "name": "Rate (Hz)", "type": "float", "min": 0.05, "max": 5.0, "step": 0.05, "default": 0.3},
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{"key": "depth", "name": "Depth", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.7},
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{"key": "waveform", "name": "Waveform", "type": "select", "options": ["sine", "triangle", "square"], "default": "sine"},
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],
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"stereo_widener": [
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{"key": "width", "name": "Width", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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# ── Drive & Saturation ─────────────────────────────────────────
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"bitcrusher": [
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{"key": "bits", "name": "Bits", "type": "int", "min": 1, "max": 16, "step": 1, "default": 8},
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{"key": "rate", "name": "Rate Reduction", "type": "float", "min": 1.0, "max": 10.0, "step": 1.0, "default": 1.0},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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"wavefolder": [
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{"key": "gain", "name": "Gain", "type": "float", "min": 0.5, "max": 10.0, "step": 0.5, "default": 2.0},
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{"key": "fold", "name": "Fold Stages", "type": "int", "min": 1, "max": 10, "step": 1, "default": 3},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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"rectifier": [
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{"key": "mode", "name": "Mode", "type": "select", "options": ["full", "half"], "default": "full"},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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# ── Dynamics ────────────────────────────────────────────────────
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"expander": [
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{"key": "threshold", "name": "Threshold (dB)", "type": "float", "min": -60.0, "max": 0.0, "step": 1.0, "default": -30.0},
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{"key": "ratio", "name": "Ratio", "type": "float", "min": 1.0, "max": 20.0, "step": 0.5, "default": 3.0},
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{"key": "attack", "name": "Attack (ms)", "type": "float", "min": 0.5, "max": 50.0, "step": 0.5, "default": 5.0},
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{"key": "release", "name": "Release (ms)", "type": "float", "min": 10.0, "max": 500.0, "step": 5.0, "default": 100.0},
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],
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"de_esser": [
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{"key": "frequency", "name": "Frequency (Hz)", "type": "float", "min": 2000.0, "max": 10000.0, "step": 100.0, "default": 6000.0},
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{"key": "threshold", "name": "Threshold (dB)", "type": "float", "min": -50.0, "max": 0.0, "step": 1.0, "default": -30.0},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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"transient_shaper": [
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{"key": "attack", "name": "Attack Boost", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "sustain", "name": "Sustain", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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"sidechain_compressor": [
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{"key": "threshold", "name": "Threshold (dB)", "type": "float", "min": -60.0, "max": 0.0, "step": 1.0, "default": -20.0},
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{"key": "ratio", "name": "Ratio", "type": "float", "min": 1.0, "max": 20.0, "step": 0.5, "default": 4.0},
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{"key": "attack", "name": "Attack (ms)", "type": "float", "min": 0.5, "max": 50.0, "step": 0.5, "default": 2.0},
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{"key": "release", "name": "Release (ms)", "type": "float", "min": 10.0, "max": 500.0, "step": 5.0, "default": 50.0},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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# ── Filters & EQ ────────────────────────────────────────────────
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"parametric_eq": [
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{"key": "freq_0", "name": "Band 1 Freq (Hz)", "type": "float", "min": 20.0, "max": 20000.0, "step": 10.0, "default": 100.0},
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{"key": "gain_0", "name": "Band 1 Gain (dB)", "type": "float", "min": -18.0, "max": 18.0, "step": 0.5, "default": 0.0},
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{"key": "q_0", "name": "Band 1 Q", "type": "float", "min": 0.1, "max": 10.0, "step": 0.1, "default": 0.707},
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{"key": "freq_1", "name": "Band 2 Freq (Hz)", "type": "float", "min": 20.0, "max": 20000.0, "step": 10.0, "default": 500.0},
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{"key": "gain_1", "name": "Band 2 Gain (dB)", "type": "float", "min": -18.0, "max": 18.0, "step": 0.5, "default": 0.0},
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{"key": "q_1", "name": "Band 2 Q", "type": "float", "min": 0.1, "max": 10.0, "step": 0.1, "default": 0.707},
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{"key": "freq_2", "name": "Band 3 Freq (Hz)", "type": "float", "min": 20.0, "max": 20000.0, "step": 10.0, "default": 2000.0},
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{"key": "gain_2", "name": "Band 3 Gain (dB)", "type": "float", "min": -18.0, "max": 18.0, "step": 0.5, "default": 0.0},
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{"key": "q_2", "name": "Band 3 Q", "type": "float", "min": 0.1, "max": 10.0, "step": 0.1, "default": 0.707},
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{"key": "freq_3", "name": "Band 4 Freq (Hz)", "type": "float", "min": 20.0, "max": 20000.0, "step": 10.0, "default": 5000.0},
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{"key": "gain_3", "name": "Band 4 Gain (dB)", "type": "float", "min": -18.0, "max": 18.0, "step": 0.5, "default": 0.0},
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{"key": "q_3", "name": "Band 4 Q", "type": "float", "min": 0.1, "max": 10.0, "step": 0.1, "default": 0.707},
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],
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"high_pass_filter": [
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{"key": "frequency", "name": "Frequency (Hz)", "type": "float", "min": 20.0, "max": 20000.0, "step": 10.0, "default": 200.0},
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{"key": "slope", "name": "Slope (dB/oct)", "type": "select", "options": [6, 12], "default": 12},
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],
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"low_pass_filter": [
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{"key": "frequency", "name": "Frequency (Hz)", "type": "float", "min": 20.0, "max": 20000.0, "step": 10.0, "default": 5000.0},
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{"key": "slope", "name": "Slope (dB/oct)", "type": "select", "options": [6, 12], "default": 12},
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],
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"band_pass_filter": [
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{"key": "frequency", "name": "Frequency (Hz)", "type": "float", "min": 20.0, "max": 20000.0, "step": 10.0, "default": 1000.0},
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{"key": "q", "name": "Q", "type": "float", "min": 0.1, "max": 20.0, "step": 0.1, "default": 0.707},
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],
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"notch_filter": [
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{"key": "frequency", "name": "Frequency (Hz)", "type": "float", "min": 20.0, "max": 20000.0, "step": 10.0, "default": 60.0},
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{"key": "q", "name": "Q", "type": "float", "min": 0.5, "max": 50.0, "step": 0.5, "default": 10.0},
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],
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"formant_filter": [
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{"key": "vowel", "name": "Vowel", "type": "select", "options": ["a", "e", "i", "o", "u"], "default": "a"},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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],
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# ── Time-Based ──────────────────────────────────────────────────
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"ping_pong_delay": [
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{"key": "time", "name": "Time (ms)", "type": "float", "min": 10.0, "max": 2000.0, "step": 5.0, "default": 400.0},
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{"key": "feedback", "name": "Feedback", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.3},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.4},
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],
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"multi_tap_delay": [
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{"key": "pattern", "name": "Pattern", "type": "select", "options": ["quarter", "dotted", "triplet"], "default": "quarter"},
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{"key": "feedback", "name": "Feedback", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.3},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.4},
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],
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"reverse_delay": [
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{"key": "time", "name": "Time (ms)", "type": "float", "min": 50.0, "max": 2000.0, "step": 5.0, "default": 400.0},
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{"key": "feedback", "name": "Feedback", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.3},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.4},
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],
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"tape_echo": [
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{"key": "time", "name": "Time (ms)", "type": "float", "min": 50.0, "max": 2000.0, "step": 5.0, "default": 300.0},
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{"key": "wow", "name": "Wow/Flutter", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.3},
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{"key": "high_cut", "name": "High Cut", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "feedback", "name": "Feedback", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.3},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.4},
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],
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"shimmer_reverb": [
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{"key": "shift", "name": "Shift (semitones)", "type": "float", "min": -12.0, "max": 12.0, "step": 0.5, "default": 0.0},
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{"key": "decay", "name": "Decay", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.4},
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],
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"looper": [
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{"key": "record", "name": "Record", "type": "bool", "default": 0},
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{"key": "overdub", "name": "Overdub", "type": "bool", "default": 0},
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{"key": "play", "name": "Play", "type": "bool", "default": 0},
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{"key": "stop", "name": "Stop", "type": "bool", "default": 0},
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],
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# ── Ambience ────────────────────────────────────────────────────
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"early_reflections": [
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{"key": "size", "name": "Room Size", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.5},
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{"key": "decay", "name": "Decay", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.4},
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{"key": "mix", "name": "Mix", "type": "float", "min": 0.0, "max": 1.0, "step": 0.01, "default": 0.4},
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],
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}
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