As far as my anecdotal experiences go, it is true. Bilinguals do carry bilingual accents even in native languages. You notice it from first few seconds listenin

As far as my anecdotal experiences go, it is true. Bilinguals do carry bilingual accents even in native languages. You notice it from first few seconds listening. In my first language it sounds as if the person is playing in 4-note chords instead of 3-note. It probably only matter as an item in the list of falsehood about speech recognition, definitely not something that deserve to be described as "messed up", but it's also not not true.