micro.lua

-- Number of steps in the sequence
num_steps = 8
-- Length of each step in seconds
step_length = 0.125
-- Maximum pitch variation per step
pitch_variation = 0.02
-- Filter cutoff frequency range (Hz)
filter_min = 100
filter_max = 5000

function init()
  softcut.buffer_clear()

  -- Setup for micro-loop sequencer
  for i = 1, num_steps do
    softcut.enable(i, 1)
    softcut.buffer(i, 1)
    softcut.level(i, 0.5 / num_steps) -- Adjust level based on num_steps
    softcut.loop(i, 1)
    softcut.loop_start(i, 0)
    softcut.loop_end(i, step_length)
    softcut.play(i, 1)

    -- Set initial filter parameters for each step
    softcut.post_filter_fc(i, math.random(filter_min, filter_max))
    softcut.post_filter_rq(i, 1.0)
    softcut.post_filter_lp(i, 1.0)
  end

  -- Route audio input to buffer
  softcut.level_input_cut(1, 1, 1.0)
  softcut.level_input_cut(2, 1, 1.0)
  softcut.rec_level(1, 1.0)
  softcut.rec(1, 1)

  -- Enable softcut output
  softcut.play(1, 1)
  softcut.play(2, 1)

  -- Route input to main output
  softcut.level(1, 1.0)
  softcut.level(2, 1.0)
end

function enc(n, delta)
  if n == 1 then
    step_length = util.clamp(step_length + delta * 0.01, 0.01, 0.5)
    for i = 1, num_steps do
      softcut.loop_end(i, step_length)
    end
  elseif n == 2 then
    pitch_variation = util.clamp(pitch_variation + delta * 0.001, 0.0, 0.2)
  end
  redraw()
end

function redraw()
  screen.clear()
  screen.move(10, 30)
  screen.text("step length: "..step_length)
  screen.move(10, 50)
  screen.text("pitch variation: "..pitch_variation)
  screen.update()
end

clock.run(function()
  local step = 1
  while true do
    clock.sync(step_length) -- Sync to step length

    -- Trigger the current step
    softcut.position(step, 0)

    -- Move to the next step
    step = step % num_steps + 1
  end
end)