Quote:
Originally Posted by
The Vulture
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So how to this methodically the "best"/easy/whatever way?
I have read a great thread about this on gs but I can't find it now.
Thanks!
First, you need to draw symmetry line in the room on the floor (I use coloured pvc electrical isolation tape, for "drawing"), but before that, you need to find it, i mean you need to find best possible symmetry in the room.
Draw couple of points (tape crossed) on this line with about 5cm distance (2") between points. There will be a places for the measurement microphone... so try to make points in range where is practical for you to sit.
I start for the first point and I use ARTA in RTA mode with periodic white noise, so I measure fast, continual and in real time,... vga display is oriented to loudspeaker (me).
I always move ONE loudspeaker by myself and watch what happen to PC VGA in same time, then I "draw" cross on the floor (with pvc tape) at point where I find BEST response. tweeter is pointed to microphone and angle to symmetry line is from 25-35 degrees (roughly)...
I use cheap light loudspeaker stands for this, they are useless for anything other... but it is easy to point at floor where loudspeaker is, and it is easy to move it.
For any of listening points I'll try to find best position for one loudspeaker and I mark it.
After I find a couple of best positions, I use more precise measurement methods using MLS or sweep (now you can use REW), then I again measure all situations, and show it all on the
same graph. After that I choose best possible position for listener and ONE loudspeaker. This may be a bit tricky and some experience is needed.
Then I include second loudspeaker positioned symmetrically to the first and do new (precise) measurements with only one loudspeaker in one time (not both).
After that I do some position tweaking with target to find best match between loudspeaker response (Also need experience...)
That's all, after that only treatment can help to have better results.
I hope that I help you, if you have problem to understand what I wrote, ask freely, I will try to explain better, I hope.
Cheers