HOW TO ACOUSTICALLY TREAT A ROOM
How much acoustic foam do I need?
Absolutely NONE... Acoustic foam is completely ineffective on lower / lower mid frequencies, not to mention flammable and made in China from undisclosed toxic materials. Don't say we didn't warn you.
DIY Acoustic Panels
Are great if you are handy and a very popular option. However, if you are looking for acoustic panels on Craigslist you want to be careful to completely inspect the sound treatments for damage, mold or other defects that will impact performance. You also want to make sure to buy from a trustworthy seller, good luck finding too many of those on CL. By the way... did you know that all Mixmastered Acoustic built acoustic panels come with a LIFETIME GUARANTEE?
Egg crate foam for acoustics?
Sorry folks, it simply doesn't work. At best you may absorb the highest of frequencies which is great if you are trying to capture a recording of a dog whistle or even the occasional dolphin.
Actually in a pinch it could work, however, less than ideal. Keep in mind that a leather couch (even though you see them in many studios) are actually reflective and do a disservice. Leather is not acoustically transparent. A simple test you can do to test transparency of acoustic fabric is to breathe through it, if you can feel your breath on the back side of the fabric, you may be in luck.
If you have any additional questions or would like a FREE ACOUSTICAL ANALYSIS fill out the contact form and let us know your about your room (what are the floor, walls and ceilings mostly made of), the room size, the problem you wish to address and the timeframe you are working with. Also, if possible, send any pictures and/or video that you want us to see when coming up with the best plan of attack for your room.