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In the Forum: Audio Discussions
In the Thread: The Loudspeaker (Troels Gravesen project); Finally!
Post Subject: The mental aimPosted by Romy the Cat on: 6/14/2023
Paul, what I am saying has nothing to do with your Troels project but rather a psychological exercise to understand what truly is going on. Also, I very much not knocking at your door with my mental approach to audio objective am trying to demonstrate that everything is not so simple.
 
So, you are injecting int the room one more acoustic system that for sure “increase the density of Music” in your room. How can we methodologically differentiate from the changes you experience after you put your central channel in play and the changes you would experience if you increased the radiating surface of your right and left channel? It is not clear what kind signal you use to drive your central channel and not clear how your right and left channels are installed in the context of your listening room. So, from perspective of general audio analysis we still do not know if the improvements you might have related to the functionality of the “central channel” or related to the functionality of “another channel”. Here is a little methodological tip that I use myself to understand what is going on. When you make acoustic change like this, try to take your focus from what became better towards to observing what become worse. For whatever reason when this think about what become worse we are dealing with known N it multiple time help me to debug problem much more accurate.
 
Anyhow, if I were in your shoes I would experiment to drive the center channel from different type of signals, probably a good digital signal processor would help you with experiments To get out of main signal sum, delta, different phase shifts, and all of it might be very much frequency dependent. The digital companies did a tone of research in this direction. While you experiment with this do pay attention not only to what became but what became worse. Interestingly, I do not recommend to find error configuration when amount of worse is minimal and to use it. However, knowing in which configuration the damage from central channel is minimal will give to you a reference point upon which you can keep your mental aim.

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