Audio problem: In the volcano's control room, there is a husky guy in red uniform whose only purpose is to open and close the crater. Every time he opens or closes the crater he says with a deep voice, "opening crater, closing crater." When Bond kills him with the rocket cigarette to open the crater and let the ninjas in, and the guards have subdued Bond, the guard in white uniform who closes the crater says, "closing crater," and you can hear that it's the dead husky guy's voice.
Audio problem: During the scene where Bond has to make his way back into the control room, he asks Tiger Tanaka to cover for him. Tiger does so with an MP-40 submachine gun. It's the loudest gun on screen when Tiger is firing it and has the MP-40's distinctive clatter. So far, so good. However, watch the gun's muzzle flashes (the MP-38, MP-38/40, and MP-40 as well as the MP-41 all have cyclic rates slow enough to distinguish between individual shots). When Tiger fires the first burst out of the gun, it corresponds perfectly well with the muzzle flashes. However, after cutting to Bond and then back again to Tiger, something went wrong. The muzzle flashes don't correspond at all to the firing noises from this point onward. In fact, when Tanaka takes his finger off the trigger momentarily to presumably prevent muzzle climb or let the barrel cool for an instant, the firing noises keep going.