default
{
    state_entry()
    {
        llStopSound();
        llSetTimerEvent(0.001);
    }
 
    timer()
    {
        if (llGetAgentInfo(llGetOwner()) & AGENT_WALKING)
        {
            state walking;
        }
    }
}
state walking
{
    state_entry()
    {
        llLoopSound(llGetInventoryName(INVENTORY_SOUND,0),3);
    }
    timer()
    {
        if (!(llGetAgentInfo(llGetOwner()) & AGENT_WALKING))
        {
            state default;
        }
    }
}