It's not a huge difference, might not be detectable all the time, but I feel it when I say it.
Devon,
Evan end like
Donovan and
Ivan. DEV-ən or DEV'n
Devin,
Kevin end like
Melvin and
Calvin. DEV-in. The I is short, but it's there. Maybe not in your accent.
This message was edited 5/22/2015, 2:02 PM