lil demo of ASL creating simple decaying oscillator tones

bouncy.lua

--- bouncy
-- tiny demo of ASL's dyn, generating a stream of bass notes from crow

-- little sequins of frequencies
PIT = sequins{ 110
             , 110*1.5
             , 110*1.25
             , 110*1.666
             , 110*1.333
             }
RYT = sequins{1,0.5,0.33,2}

function init()
    -- start output 1 oscillating with an intrinsic decay envelope
    output[1]( oscillate( dyn{pitch=PIT()}     -- dynamically set frequency
                        , dyn{lev=5}:mul(0.95) -- level fades from 5 to ~0, :mul(0.95) sets decay rate
                        , 'linear'))           -- triangle wave
    -- start a clock with the 'notes' function for plucking notes
    clock.run(notes)
end

function notes()
    while true do
        clock.sleep(RYT())          -- wait for beat to finish
        output[1].dyn.pitch = PIT() -- set a new pitch
        output[1].dyn.lev = 5       -- reset level to 5V (will decay immediately)
    end
end

function stop()
    clock.cleanup()     -- stop all clocks
    output[1].volts = 0 -- disable oscillator
end