MSO-like EQ optimization

[RegD]

Hello,

I have been using Multi Sub Optimizer (thanks @andyc56 ) and it does wonders. Up to 200 something Hz. It is so great that it takes into account different listening positions.
For the rest of the spectrum I am using REW (thanks @John Mulcahy ) to help correct the SPL response but it works best on only one position.
Wouldn't it just be awesome if MSO could extend its optimizing range to 20 kHz? Or if REW could use an algorithm similar to MSO's taking into account multiple positions?

Well, I guess there are some good reasons - maybe the physics of the acoustics or the mathematics - why this does not exist ... (it doesn't, right?)
Just wishful thinking
Cheers,

 

[FrankV]

MSO works because all the subs receive the same mono signal source. Not quite the same for stereo or higher multi-channel source!
Other processing algorithms such as DIRAC, YPAQ, etc. try to deal with the higher frequencies.

 

[MediumRare]

With REW room simulator you can move around the seating position and see what compromises there are versus the PLP.

 

[dhai]

MSOptimizing works in rooms with dimensions in the range of the wavelengths of the sound. At higher frequencies wavelengths are much smaller than room dimensions, hence the amplitude and phase tricks of MSO do not work any more. It is much easier to treat the room acoustically at higher frequencies.

 

[deercreekaudio]

An alternative to MSO might be setting up your system with DSP tools and then applying REW or Dirac Live over the full frequency range. See our blog https://deercreekaudio.com/blogs-&-updates/f/stereo-21-22-subwoofer-optimization

 

[RegD]

MSO works because all the subs receive the same mono signal source. Not quite the same for stereo or higher multi-channel source!

Of course the signal is then different for each of the mains (or satellites) but taking care of each separately and independantly, we should be able to find a set of EQ's that optimize all listening positions without deteriorating some (too much).

 

[RegD]

MSOptimizing works in rooms with dimensions in the range of the wavelengths of the sound. At higher frequencies wavelengths are much smaller than room dimensions, hence the amplitude and phase tricks of MSO do not work any more. It is much easier to treat the room acoustically at higher frequencies.

I did treat my room and my speakers are pretty decent but I still get some issues around 500-600 Hz and could use an EQ optimization that works for different listening positions (e.g. around the main listening position).