sfxit examples

• v0, as written
• v1
• v2
• v3
• v4
• v5

version = 1
sr = 48000
dur = 0.4
output = "out"
about = "picking up a coin: two bright rings, the second a beat later"
vary = { "ring.freq" = 0.04, "ring2.freq" = 0.04 }

[nodes.ring]
type = "gen.modal"
params = { material = "metal.coin", freq = 3300, t60 = 0.35, seed = 7 }

[nodes.ring2]
type = "gen.modal"
params = { material = "metal.coin", freq = 4400, t60 = 0.25, seed = 8 }

[nodes.later]
type = "seq.repeat"
note = "the second ring lands 60 ms after the first"
inputs = { in = "ring2" }
params = { at = 0.06, count = 1 }

[nodes.mix]
type = "mix.sum"
inputs = { a = "ring", b = "later" }
params = { gain_b = -4 }

[nodes.out]
type = "fx.normalize"
inputs = { in = "mix" }
params = { mode = "peak", target = -1 }

version = 1
sr = 48000
dur = 4.0
output = "out"
about = "two bars of a four-on-the-floor beat at 120 bpm: euclidean kick, snare and hats, folded into an exact loop"

[nodes.kick]
type = "gen.thump"
params = { freq = 150, to = 48, decay = 0.12, click = 0.3, dur = 0.4, gain_db = -2 }

[nodes.kicks]
type = "seq.euclid"
inputs = { in = "kick" }
params = { steps = 16, pulses = 4, bpm = 120, bars = 2 }

[nodes.snare_env]
type = "env.adsr"
params = { attack = 0, decay = 0.05, sustain = 0, dur = 0.25 }

[nodes.snare_noise]
type = "gen.noise"
inputs = { amp = "snare_env" }
params = { color = "white", dur = 0.25, gain_db = -8, seed = 4 }

[nodes.snare_body]
type = "gen.thump"
params = { freq = 220, to = 180, decay = 0.04, dur = 0.25, gain_db = -10 }

[nodes.snare]
type = "mix.sum"
inputs = { a = "snare_noise", b = "snare_body" }

[nodes.snares]
type = "seq.euclid"
inputs = { in = "snare" }
params = { steps = 16, pulses = 2, rotate = 4, bpm = 120, bars = 2 }

[nodes.hat_env]
type = "env.adsr"
params = { attack = 0, decay = 0.015, sustain = 0, dur = 0.08 }

[nodes.hat_noise]
type = "gen.noise"
inputs = { amp = "hat_env" }
params = { color = "white", dur = 0.08, gain_db = -14, seed = 6 }

[nodes.hat]
type = "filter.eq"
inputs = { in = "hat_noise" }
params = { type = "highpass", freq = 7000, stages = 2 }

[nodes.hats]
type = "seq.euclid"
inputs = { in = "hat" }
params = { steps = 16, pulses = 8, rotate = 2, bpm = 120, bars = 2, swing = 0.12 }

[nodes.kit]
type = "mix.sum"
inputs = { a = "kicks", b = "snares", c = "hats" }
params = { gain_b = -2, gain_c = -4 }

[nodes.loop]
type = "fx.loop"
inputs = { in = "kit" }
params = { length = 4.0 }

[nodes.out]
type = "fx.normalize"
inputs = { in = "loop" }
params = { mode = "peak", target = -1 }

• v0, as written
• v1
• v2
• v3
• v4
• v5

version = 1
sr = 48000
dur = 2.4
output = "out"
about = "four footsteps on a wooden floor: a heel thump, a board knock and a scuff, walked with a little irregularity"
vary = { "board.freq" = 0.08, "heel.freq" = 0.06 }

[nodes.heel]
type = "gen.thump"
params = { freq = 140, to = 70, decay = 0.035, click = 0.4, dur = 0.25, gain_db = -4 }

[nodes.board]
type = "gen.modal"
params = { material = "wood.plank", freq = 210, t60 = 0.12, hardness = 2500, strike = 0.006, dur = 0.3, gain_db = -8, seed = 4 }

[nodes.scuff_env]
type = "env.adsr"
params = { attack = 0.01, decay = 0.04, sustain = 0, dur = 0.25 }

[nodes.scuff]
type = "gen.noise"
inputs = { amp = "scuff_env" }
params = { color = "pink", dur = 0.25, gain_db = -14, seed = 11 }

[nodes.scuff_band]
type = "filter.eq"
inputs = { in = "scuff" }
params = { type = "bandpass", freq = 1800, q = 0.9 }

[nodes.step]
type = "mix.sum"
inputs = { a = "heel", b = "board", c = "scuff_band" }

[nodes.walk]
type = "seq.repeat"
inputs = { in = "step" }
params = { count = 4, every = 0.52, jitter = 0.04, gain_jitter_db = 3, pitch_jitter = 0.6, seed = 21 }

[nodes.room]
type = "fx.reverb"
inputs = { in = "walk" }
params = { room = "room", wet = 0.15, seed = 3 }

[nodes.out]
type = "fx.normalize"
inputs = { in = "room" }
params = { mode = "loudness", target = -18 }

version = 1
sr = 48000
dur = 1.0
output = "out"
about = "a short lute phrase in D dorian, for a tavern"

[nodes.tune]
type = "seq.notes"
params = { voice = "lute", tune = "d4:0.5 f4 a4 c5:1 b4:0.5 a4 g4 a4:2 r:0.5 (d4 a4 d5):2", bpm = 96, key = "d", mode = "dorian", humanize = 0.012, tail = 1.5, seed = 3 }

[nodes.room]
type = "fx.reverb"
inputs = { in = "tune" }
params = { room = "room", wet = 0.25, seed = 3 }

[nodes.out]
type = "fx.normalize"
inputs = { in = "room" }
params = { mode = "loudness", target = -18 }

version = 1
sr = 48000
dur = 4.0
output = "out"
about = "steady rain on leaves, a 4 second seamless loop: a pink hiss bed with scattered drops"

[nodes.bed]
type = "gen.noise"
params = { color = "pink", gain_db = -30, seed = 2 }

[nodes.bed_hp]
type = "filter.eq"
note = "a thin hiss: rain is mostly highs"
inputs = { in = "bed" }
params = { type = "highpass", freq = 600 }

[nodes.drop]
type = "gen.modal"
note = "one drop: a tiny, damped wooden tick"
params = { material = "wood.block", freq = 2600, t60 = 0.02, hardness = 9000, strike = 0.0006, dur = 0.06, gain_db = -2, seed = 1 }

[nodes.drops]
type = "seq.scatter"
inputs = { in = "drop" }
params = { rate = 45, gain_jitter_db = 20, pitch_jitter = 7, pan_spread = 0.8, seed = 13 }

[nodes.mix]
type = "mix.sum"
inputs = { a = "bed_hp", b = "drops" }
params = { gain_b = 0 }

[nodes.loop]
type = "fx.loop"
note = "folds the tail of the drops onto the start, so the end meets the beginning"
inputs = { in = "mix" }
params = { length = 4.0 }

[nodes.out]
type = "fx.normalize"
inputs = { in = "loop" }
params = { mode = "loudness", target = -24 }

• v0, as written
• v1
• v2
• v3
• v4
• v5

version = 1
sr = 48000
dur = 1.2
output = "out"
about = "a sword striking a shield: a hard metallic clang over a short noise crack"
vary = { "blade.freq" = 0.05, "plate.freq" = 0.05 }

[nodes.blade]
type = "gen.modal"
params = { material = "metal.bar", freq = 820, t60 = 1.1, hardness = 12000, strike = 0.0008, detune = 0.006, seed = 5 }

[nodes.plate]
type = "gen.modal"
params = { material = "metal.plate", freq = 310, t60 = 0.5, hardness = 9000, strike = 0.0012, gain_db = -9, seed = 6 }

[nodes.crack_env]
type = "env.adsr"
params = { attack = 0.0015, decay = 0.012, sustain = 0, dur = 0.12 }

[nodes.crack]
type = "gen.noise"
inputs = { amp = "crack_env" }
params = { color = "white", dur = 0.12, gain_db = -6, seed = 9 }

[nodes.crack_hp]
type = "filter.eq"
inputs = { in = "crack" }
params = { type = "highpass", freq = 2500 }

[nodes.mix]
type = "mix.sum"
inputs = { a = "blade", b = "plate", c = "crack_hp" }

[nodes.grit]
type = "fx.drive"
inputs = { in = "mix" }
params = { amount = 2.2, mode = "warm" }

[nodes.hall]
type = "fx.reverb"
inputs = { in = "grit" }
params = { room = "hall", wet = 0.2, tail = 0.6, seed = 3 }

[nodes.out]
type = "fx.normalize"
inputs = { in = "hall" }
params = { mode = "peak", target = -1 }

• v0, as written
• v1
• v2
• v3
• v4
• v5

version = 1
sr = 48000
dur = 0.12
output = "out"
about = "a soft UI button click: a short sine blip with a woody tick on top"
vary = { "blip.freq" = 0.1 }

[nodes.blip_env]
type = "env.adsr"
params = { attack = 0.001, decay = 0.018, sustain = 0 }

[nodes.blip]
type = "gen.osc"
inputs = { amp = "blip_env" }
params = { wave = "sine", freq = 1400, to = 900, glide = 0.03, gain_db = -3 }

[nodes.tick]
type = "gen.modal"
params = { material = "wood.block", freq = 2200, t60 = 0.015, strike = 0.0007, dur = 0.05, gain_db = -12, seed = 2 }

[nodes.mix]
type = "mix.sum"
inputs = { a = "blip", b = "tick" }

[nodes.out]
type = "fx.normalize"
inputs = { in = "mix" }
params = { mode = "peak", target = -3 }

version = 1
sr = 48000
dur = 1.2
output = "out"
about = "a whoosh past the listener: noise swept up and back down through a band-pass, panned left to right"

[nodes.swell]
type = "env.adsr"
params = { attack = 0.55, decay = 0.25, sustain = 0, release = 0.2 }

[nodes.air]
type = "gen.noise"
inputs = { amp = "swell" }
params = { color = "pink", gain_db = -4, seed = 5 }

[nodes.sweep]
type = "env.adsr"
note = "drives the filter: up as it arrives, down as it leaves"
params = { attack = 0.6, decay = 0.3, sustain = 0, release = 0.2 }

[nodes.band]
type = "filter.eq"
inputs = { in = "air", mod = "sweep" }
params = { type = "bandpass", freq = 350, q = 1.6, mod_depth = 3.2 }

[nodes.travel]
type = "env.ramp"
params = { from = -1, to = 1, shape = "smooth" }

[nodes.pan]
type = "fx.pan"
inputs = { in = "band", mod = "travel" }
params = { pan = 0, mod_depth = 0.8 }

[nodes.out]
type = "fx.normalize"
inputs = { in = "pan" }
params = { mode = "peak", target = -1 }