ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,418,748, issued on Sept. 16, was assigned to Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. (Munich).

"Apparatus and method for automatic adaption of a loudspeaker to a listening environment" was invented by Andreas Walther (Erlangen, Germany), Albert Prinn (Erlangen, Germany) and Cagdas Tuna (Erlangen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for processing an audio input signal having one or more audio input channels to obtain an audio output signal having one or more audio output channels has an estimation unit configured to estimate a radiation resistance of each driver of one or more drivers of eac...