[solardev]

Sorry, I might've linked the wrong patent then. (I meant to, but failed to, find the one that handles speaker equalization for a single speaker).

By room equalization, do you mean normalizing volumes between different rooms, or...?

[newaccount74]

Room equalisation is about counteracting the effect of the room and the placement of the speakers. For example, when a speaker is close to the wall, or in a corner, low frequencies are amplified, even if the speaker on its own has a flat response cureve, so you would reduce low frequencies to adjust for the room.