ernestcarl
Major Contributor
anti-room-correction
Never heard it phrased in such a manner, but ok. It sounds "magical" due to the marketing speak often used to sell said product.
There's talk about DRC being able to send out an anti-sound a bit delayed from the original sound, from the same speaker driver, to counteract in-room reflections and speaker reflections.
The latter ("speaker correction" and not "room correction") actually does work and is regularly used to correct/improve some horn speaker designs by reducing back reflections/echoes causing coloration in sound -- but the reflections are very consistent in this application.
Inside a "room" where positions change a lot all of the time... that's where the specific technique in question doesn't work so good or often make things worse. I believe improving the room acoustics -- besides purchasing better speakers -- itself is the goal to aim for.
A speaker system's magnitude and time deviations from linear can be fixed to some degree through digital digital processing, for sure, but you got to know what is you're doing -- and the limitations of your corrections based on the speaker design -- even when using advanced semi-automated software. Speaker system designers should be the ones correctly implementing this right from the start, though.
*Then again, if you are implementing a multi-way system, you are also sort of now becoming the system designer of your own to a lesser degree... most people do not choose this route.
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