{init}
0 (S.L.sound_delay)
0 (S.L.sound_interval)
0 (S.L.sound_hour)
{end}

{frame}
(L.S.Time) 3600 / (S.L.sound_hour)

(L.L.sound_hour) 11 >=
(L.L.sound_hour) 23 < &&
{if}
  (L.L.sound_delay) (L.L.sound_interval) <
  {if}
    (L.L.sound_delay) (L.S.Timegap) + (S.L.sound_delay)
  {else}
    (T.L.ride_loop)
    (C.L.sound_length) (S.L.sound_interval)
    0 (S.L.sound_delay)
  {endif}
{endif}
{end}