He drops a ti-fart during his report on TVA Sports

Some Normand Allen uploaded a rather comical video in which we can see a report from TVA Sports. Why it's so funny is that we think journalist Marc-André Perreault fart while he speaks. One might think that it is a montage and that the noise has been added, but the journalist apologizes for this "deviation" of conduct. What do you think about it, is it gas or a little throat noise?