TNGator wrote:Sam Spoons wrote:If you are testing your 50mm DIY panels you mentioned earlier I refer you back to several references earlier in the thread that say thin lightweight panels will have little or no effect on bass frequencies but, as long as they are not too thin or lightweight they will do useful things in the mid range and above. There is no point in measuring 20-500 Hz to see what difference 50mm thick panels are making 'cos they ain't making any.
Hi Sam. No these were different. About 40cm deep. Do you know the funny thing? Just for a laugh. I put a 2 tier stand in the corner put some objects on it to make a make shift diffuser. And the darn thing did a better job than anything else I tried. The graph was really tamed. I couldn't believe the difference. So maybe some diffusion will help just as good as bass traps.
Diffusion is, I believe (no personal experience) good at mid/high frequencies, maybe somebody will be along to say if it works at the low end, my feeling is that it will to a point by blurring the resonances
I suspect that in your room REW is not going to be your friend, you'll never get close to a flat graph and drive yourself mad trying (been there and bought the teeshirt :headbang: ). If you can set the room/monitors/desk up so you can get some absorbers at the mirror points and use headphones to check the bass you should be able to get back to the primary purpose of making/recording music*.
* I'm not suggesting you don't install bass traps just that you accept that they can only have limited effect in rooms like you (and I) have. In my room I have about 3m2 of 250mm deep traps and about 7m2 of 50mm panels, spaced 25-50mm off the wall/ceiling all constructed from RW3 Rockwool. I'd given up on testing by the time I came to install them and installed the full package in one go but, empirically, the room does sound much better.