string sound1 = "";
string sound2 = "";

default
{
    state_entry()
    {
        llPreloadSound(sound1);
        llPreloadSound(sound2);
        llSetSoundQueueing(TRUE);
        llSetTimerEvent(.3);
    }

    timer()
    {
        string anim = llGetAnimation(llGetOwner());
        if ((anim == "Walking") || (anim == "Running") || (anim == "Turning Left") || (anim == "Turning Right") || (anim == "CrouchWalking"))
        {
            llPlaySound(sound1,1.0);
            llPlaySound(sound2,1.0);
        }
        else
        {
            llStopSound();
        }
    }

    on_rez(integer n)
    {
        llResetScript();
    }
}