How do I get the length of a sound?

I've tried using the sound's value 'TimeLength' but it never updates immediately so I can't actually use it, I was making something for my game that will only work if this works. Please help, I've even tried using GetProductInfo but there is nothing to get the length of an audio.

Try putting it in a "while true do" loop and put a wait(yourtimehere) afterwards so that it keeps checking it constantly.