"Ah, that's the accent..." the boy said softly.
For a moment the vampire stared blankly. "I have an accent?" He began to laugh.
And the boy, flustered, answered quickly. "I noticed it in the bar, when I asked you what you did for a living. It's just a slight sharpness to the consonants, that's all. I never guessed it was French."
"It's all right," the vampire assured him. "I'm not as shocked as I pretend to be. It's only that I forget it from time to time."
(Daniel and Louis) pgs. 5-6, IWTV

 "The voice was like a whisper that wasn't a whisper. And I could hear his French accent so clearly, though I had never been able to hear my own."
(Lestat) pg. 524, TVL

 "But the voice was polite and low, as it had always been."
(Lestat) pg. 525, TVL

 "Such a human voice, so kind... his slow voice was a balm to my nerves."
(Lestat) pg. 423, MtD

 ""I should throw them out now, Pandora," he said in a voice that couldn't have threatened the most timid soul."
(Armand) pg. 365, TVA