[hinkley]

If it makes you more comfortable and confident, that is helping you.

This isn't autotune for the spoken word, though. It's not fixing pacing or vocabulary, and in the audio above it isn't even fixing intonation. Yes, a thick German accent will give you away as being of German extraction. But you're also using the word 'since' when Brits and Americans would use 'for', and it's not going to fix that. Any more than it'll fix my french when I make the exact same mistake going the other direction (for=duration vs for=purpose vs for=interval). If I hear 'since one month' you're likely German or Indian. If you ask how long I've been in Marseille you'll know I'm American in about half that time.