Bell

bell.clj

(definst bell# [frequency 440 duration 4.0]
  (let [harmonic-decay [1.0 0.5 0.25 0.125]
        partials (map-indexed
                   (fn [harmonic proportion]
                     (let [envelope (env-gen (perc 0.01 (* duration proportion)))
                           overtone (* (inc harmonic) frequency)]
                       (* envelope proportion (sin-osc overtone))))
                   harmonic-decay)] 
    (detect-silence (first partials) :action FREE)
    partials))

As a regular synth, this example would have an array of 5 output channels... one for each item in harmonic decay. However, In Overtone 0.7, insts support mono/stereo output only, so the rest of the channels are simply discarded. You can use (mix partials) to mix all 5 channels down to a single output.

Gotcha. Thanks!