Jerry, I know you are very busy, but I did not see an email address, so please forward the following: I am so sorry to hear about the suffering of your father-in-law. Parkinson's is a terrible disease. I hope I can be of some help. There is a device, I have seen in use by people who have had their larynx removed due to throat cancer, it is an electronic device that creates a humming sound when switched on, the patient speaks, and the air from their throat is able to modulate the humming sound and produce an understandable voice. I don't know what the device is called, but I would expect that any cancer organization could give you information about it. Their are also programs that can create a voice when text is typed into a computer, but the person has to be able to type, and I don't know if this applies to your father-in-law. Good [log in to unmask]