WOW!!! You guys have been busy while I was away! I like it
Depending on where/how you measure, the room is about 29.8'x18.4'x8.7' plus another 2.4'x10.6' area at the back. There's the wainscoting, the soffit, the stage, and riser that all affect that.
Sounds like a great idea to me! I have another thread started where I want to track progress as I add treatments (linky
), and one thing that I'm trying to decide on there is choosing an array of measurement points. The catch is they need to be repeatable over the several months it will take me to actually add the treatments. In addition to that array of measurements across the seating positions, I'll also plan to walk around the room and try to get an idea of what the modal distribution looks like as you suggested. That's a good idea!
I don't recall reading anything about a recommended sweep duration. I'm guessing adding to the duration will increase the spectral resolution, which we may or may not need, but hadn't considered the impact on measuring ringing. I'd like to get the measurement parameters set early on so that I can repeat my measurements consistently as I add treatments! Any suggestions on where I can look for guidance on that?
I was planning to drag one of the subs out and test it in the yard, but after emailing lilMike a bit he didn't think it was necessary. Short of something wrong with my build, he felt pretty good about the measurements that have been made already. Maybe I wimped out, but it sure didn't take much to talk me out of dragging that behemoth out to the yard! If an opportunity presents itself, I may still do it. We'll have to see.
Part of the reason I like this forum is all the different viewpoints make me reconsider the things I just accept at the first past. These dips are an example. I immediately jumped to room modes being the cause of it, but after what you guys are saying I think I need to dig into it a bit just to make sure.
I didn't know REW would do that! You may have mentioned it before, but I've slept since then. That's almost scary how good that is. It's pretty commonly accepted that to get any sort of accurate prediction of the room in the modal region requires some pretty fancy analysis software. For REW to do that out of the box is astonishing. I'm going to have to play with that a bit and see what I come up with. It will be interesting to see how it holds up to testing throughout the room.
Thanks guys. Keep the feedback coming!