Loud, hearty cajun food, whiskey drinking
where are you staying and what neighborhood will you be in - the french quarter?
be aware that hearty cajun food is not what new orleans is really known for; new orleans is typically french/creole cooking or fried seafood. that being said, there is some cajun you can find, tho im not sure how "loud". K-Paul's in the quarter is a famous sort of southern/cajun comfort, as is Cochon's in the CBD.
Jacque-Imo's is loud and fun, but not really cajun. its a cab ride away tho, but is also right next to a great brass band club, The Maple Leaf.
930 Tchoupitoulas St., New Orleans, LA 70130