Audio node

Aeolian Synth

Strings played by the air — an aeolian harp. Up to five strings, ten harmonics each, every harmonic a narrow band of breath tuned to the Mode; Centre (a harmonic number, 2–11) and Width choose which harmonics ring — cable wind into Centre and the wind picks the harmonic. The strings take turns (Talk): one blooms, a consonant one answers. They retune only in silence and now and then wander to a neighbouring degree. Gust and Activity shape level and talk; Notes, when cabled, become the strings. Add inside an Audio Modular System.

Inputs

PortTypeDefault
Enablebooltrue
NotesOptional. The lowest five held notes become the strings (retuned in silence). Without notes the strings sit on the Mode's degrees.float—
ModeThe scale every harmonic snaps to: Dorian, Aeolian, Lydian, Mixolydian, Phrygian, Ionian, Pentatonic minor. A change retunes in silence (3.5 s).int1
RootSemitones above D (−24…24) the mode is rooted on.int0
StringsHow many strings, 1–5: tonic, fifth, third, seventh, second.int5
OctaveOctaves above the degree the strings sound (−2…3; 1 = Terremoti).int1
LevelLoudness, 0–8 (1 = Terremoti at full wind).float1
CentreWhich harmonic rings loudest, 1–14 (harmonic numbers). Cable wind: Terremoti uses 2.6 + 8.6 × wind (0–1).float4
WidthHow many harmonics around Centre ring, 0.2–12. Terremoti: 1.9 + 1.8 × wind.float2.4
Gust0–1: level × (0.22 + 0.78 × gust).float0.5
Activity0–1: how much the strings talk — phrases come sooner. 0 = silent turns.float0.5
TalkOn: the strings take turns (call, answer, sometimes a third). Off: all sound together.booltrue
WanderOn: now and then a string moves to a neighbouring degree, in silence.booltrue
AirThe top of the sound: a low-pass at this frequency, 300–16000 Hz.float3800

Outputs

PortType
NotesOptional. The lowest five held notes become the strings (retuned in silence). Without notes the strings sit on the Mode's degrees.float

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