When a person is looking for a way to communicate in alternative ways, they need to find something that really works for them. They need to try to find a voice that sounds natural. They want to try to find a way to be efficient. They want to be able to communicate as normally as possible, even though they're not using their biological voice.
When first meeting a parent who's had a child newly diagnosed with cerebral palsy, I really want to try and help them understand their baby. It can be difficult for parents to take it in all at once and many leave that first interview quite overwhelmed, but you're going to meet some really important and helpful people.