When you talk about a turboprop with a high pitch scream, the Rolls Royce Dart engine comes to mind first. It was fitted to a lot of things, HS748, G159, F27. All of them made soooo much noise you would scramble for cover with you fingers in your ears and begging for mercy. Then there was a Britannia that had 4 of them tied to it, the noise was indescribable.
Can't remember of anything French though that had them.