The audio sounds fine.

ye it sounds like that but it shouldn't; it's still M

You put "nie" before the verb, and the object takes Genitive instead of Accusative. "Mężczyzna nie lubi wina".

Only Accusative changes the case when negated, other cases stay unchanged.

"wino" is neuter, so its Accusative is identical to Nominative.

"winę" is Accusative of "wina", which is "guilt".

"wina" is also Nominative plural and Accusative plural "wines", but that's aside.