| Faster? Really?
Servo controlled??? LOL! That's the ticket for so many who cannot even justify procuring an appropriate mic for anything but LF room modes! Plus your analogy fails as the servo controlled unit would require some sort of brain. (Oh, and it should be noted that a mic appropriate for measurement is appropriate for this process! We are no longer in the real of LF modes. A smaller capsule becomes of use here.)
In fact, the process described takes about 2-3 sweeps (~10-15 secs real time) and pattern recognition will reduce this to I-2 sweeps to fine tune the location.
Done. And with no need for anyone else running about carrying a large panel!
But as was stated, the process was a VERY basic description of process to explain a concept for someone not yet familiar with the process. It was NOT designed to be an elegant mechanism that presumes their familiarity!
Besides, part of the purpose of this procedure is to identify placement for more surgical treatment - and please note that I did NOT say "absorption"! - not simply an excuse and rationalization to cover yet another wall with large panels of absorption!
And if one is truly serious about this, they can use the Polar ETC program and have the program auto-generate the 3Space co-ordinates from ONE measurement. And all the work that is required is the operator rotaining and aligning a laser pointer to the co-ordinates supplied!
But how it is done is secondary and not of real consequence.
There is an even more fundamental concept that has apparently been missed.
As was stated previously, this process is merely a procedure for identifying the reflective points of incidence. It is NOT simply a prescription for putting up absorption!
This is a critical point of understanding!
Once the points of incidence are identified, one must then evaluate the response relative to the acoustical model they seek to design in the small acoustical space.
Only by then establishing a correspondence between the ETC response and the acoustical model does one then know what to address and evaluate the various choices by which to accomplish the desired goal. And thus begins the iterative process of treating the points of incidence in order to achieve the desired response sufficient to contribute to the larger room response.
And this is but the beginning of establishing a framework of the well-controlled response.
As one will discover if they are serious in pursuing the process further, there is more techniques and principles one needs to understand to appropriately treat the room. As we are going to need to establish psycho-acoustic triggers by which to exploit the various responses our ear-brain require for proper imaging and localization.
There is MORE to tuning a room than simply slapping absorptive panels up on the walls - even with precise placement.
And while not overly complex, a basic awareness and understanding of these principles are important and necessary. As is an understanding of the various acoustical room models that make the achievement of said goals possible.
Unlike with room modes where the goal is to simply place as many traps and absorbers as is possible, we have entered a 'region' where the process is a bit more moderated, judicious and selective - and where awareness leads one to consider multiple choices by which the same result may be accomplished. |