Voice change or aspiration ( food particles in the windpipe) can occur due to improper vocal cord function. Normally, when someone speaks, the vocal cords come together to produce flawless sound, the same occurs during swallowing. When the vocal cord does not function due to damaged nerve or atrophy of the cord, it could result in breathy voice and aspiration. Fat injection laryngoplasty is a type of voice surgery to restore the vocal cord in place. It is a day care procedure with immediate results.