when starting larc, you'll be looping a blank section of tape.
this is indicated by an L in the top left corner of your screen, and the absence of a waveform drawing. press key 3 to toggle recording/looping. the counter in the top right corner tracks the record head position.
at this point, your arc will be focused on amplitude. turn arc ring 2 and 3 to bring up the amplitude of your 2nd and 3rd play heads, revealing them on the screen.
hold key 1 and touch an arc ring to change the arc focus.
- ring 1 = amplitude
- ring 2 = speed
- ring 3 = panning
- ring 4 = filter cutoff
while amplitude, panning, and cutoff behave intuitively as knobs increasing or decreasing a value, speed is less intuitive.
first, use ring 4 to set a pre-speed value. then, move a ring 1 - 3 to set the play head speed. moving a ring counter-clockwise will set the play head to reverse.
press key2 to toggle record head and loop settings.
- norns enc 1 = feedback
- norns enc 2 = loop start
- norns enc 3 = loop end
- norns key 1 + enc 1 = record speed
- arc ring 4 = loop/window shift
in no particular order...
lfo's- screen/arc animation for shifting the loop window
- norns encoder controls for... everything