Need to reduce sound emanating from my band practice room

I need some advice on reducing the sound emanating from my jam room. The objective of this is to be considerate of my neighbors even though my band never practices late in the evenings or early mornings. Our jam room is about 12' X 12' that has one large window (60" X 60") overlooking the main street. I would like to reduce the sound that gets out of this window and also set up the overall room to absorb more sound. Our band currently is a three-piece (drums / bass / guitars) and the music we play is heavy / hard rock. I am willing to spend between $300 - $500 on this. Any advice on how I can go about doing this will be greatly appreciated. thank you! Some things to keep in mind: 1. I am NOT trying to build a studio 2. I am not trying to soundproof this room - only trying to reduce the sound that gets outside by 50% - 60% 3. I do not own the house that I live in, so anything I do in my jam room should not involve anything I can't install and take down with minimal damage to the room/ house itself

First read the stickies Second, Since im kind enough If the sound only comes from the window, and i'm guesing you have thick concrete or brick walls on your jam room, so the window is REALLY the only concern. then spend 300 bucks on replacing the glas, with the thickest laminated glass you can find in whatever country you are Cheers

Might get better overall isolation and less cost using glass block don't you think jbassino?

Yes, Thats a good idea, but perhaps he can't change the window's look itself by puting glassblocks. dont you think? :mrgreen: His information is very vague

When the stickies are not followed or read, it's always a guessing game for us.