Hi there,
I have a feeling that there is term for the characteristic prosody and phonology of a language - that which makes Hebrew 'Hebrew-y" or French "French-y". Capturing this would enable you to produce a concatenation of syllables with an intonation pattern such that it sounds very much like French but is meaningless.
This film represents an example with English
https://www.youtube.com/watch?v=Vt4Dfa4fOEY
My recollection is that it's something like "global language environment" or "linguistic habitat" but I could be completely wrong.
Can anyone suggest any contenders?
Very many thanks
David