Hi,

I notice the use of a bookcase to help room acoustics mentioned several times in this thread.

Unfortunately books do not help small to medium sized room acoustics much because they don't absorb much sound. Instead they primarily reflect it and therefore act more like a diffusor.

Diffusors are used in large rooms to stop standing waves and have the effect of increasing the apparent size of the room. Therefore they are a very specialist piece of equipment and not useful to tame small room acoustic problems.

If you do have a bookcase on the back wall behind your mixing position you can remove some of the books and place small acoustic panels (300 x 300mm) in those gaps at least 100-150mm thick. This will help the room acoustics.

Best Regards
Nigel

Nigel Spiers
Christchurch, New Zealand
info@nzacoustics.com