Your question is of the same nature as this one and the answer too, I believe: Pronunciation of “au” in restaurant . Briefly, there is a main stream pronunciation (ɔ) and a variant (o); I think that the first clip is not [ɔ] but instead that it is [o]. Personally, I use for “possible” the o pronunciation you can hear in this first audio clip and it seems I never hear the ‘would be’ main stream one.

This O can be and is pronounced one way or another (and all shades of O in between) without any risk of misunderstanding.