public void SetSolo(Tuple <int, int, int> ch) { if (driver == null || ch == null) { return; } driver.SetDriverSwitch("AllMute", true); if (ch.Item1 == -1) { driver.SetDriverSwitch("SetMute", 0, ch.Item3, 0, false); } else { driver.SetDriverSwitch("SetMute", ch.Item1, ch.Item2, ch.Item3, false); } }