Will there be odor or noises?

Concerns about gas and odor are normal.  Modern pouching systems are odor proof, as long as it remains properly sealed.  Immediately after surgery, it may seem that you have excessive gas almost all the time.  This is normal because of the swelling that occurs after surgery.  Once post surgical swelling is resolved, excessive gas usually is not a problem.
Gas can be reduced by eating regularly. Skipping meals should be avoided as this actually makes the small intestine more active and produce more gas and watery stool.  Some foods may cause increased gas such as: eggs, cabbage, onions, fish, baked beans, milk, cheese, and alcohol.