[TRam_]

я когда-то так делал

thread void BrakeLoop1()

{
if(!brake_state)

{
brake_state=true;
Sleep(World.PlaySound(MyAsset1, "sound/brake_start.wav", brake_sound, 10.0f, 100.0f, me, "a.bog0")-0.2);

while(brake_state_set)

{
Sleep(World.PlaySound(MyAsset1, "sound/brake_loop.wav", brake_sound, 10.0f, 100.0f, me, "a.bog0")-0.2);
}

if(TC<1.0) //звук отпуска

Sleep(World.PlaySound(MyAsset1, "sound/brake_otpusk.wav",brake_sound, 10.0f, 100.0f, me, "a.bog0"));
else//звук остановки

Sleep(World.PlaySound(MyAsset1, "sound/brake_stop.wav",brake_sound, 10.0f, 100.0f, me, "a.bog0"));

brake_state=false;
}

}

и в цикл того потока добавлялось

speed=Math.Fabs(GetVelocity()); //скорость нужна по модулю

TC=GetBrakeCylinderPressure()*981-1;


if(speed<0.8)

brake_sound=0.4;

else

if(speed<2)

brake_sound=0.8;

else

brake_sound=1;

if(TC>1.1)

{
brake_state_set=true;
BrakeLoop1();
}

if(TC<1.0 or speed<0.6)

brake_state_set=false;