Americans always identify me as 'British' by my accent.
I can tell by your accent that you're not from here.
"It means we still and will always carry weight," answered a third editor, British, by his accent.
Abashed by his accent and manner, they let him pass.
I could kind of tell by your name, and your accent.
I judged that might be a possibility by your accent.
The prof who wrote it is supposed to be able to tell what village you come from just by your accent.
"But by your accent I would judge you to be a man who at this moment is mightily afraid."
Private Bean, by his accent, was a country boy.
"You can tell American furniture by its accent," he liked to say.