US Patent 11630637 Portable speaker with orientation-dependent equalization

Various aspects include portable speakers and methods of controlling such speakers. In a particular implementation, a portable loudspeaker includes: a controller configured to control an audio output according to at least two distinct equalization profiles and in at least two distinct physical orientations, where the controller is configured to switch between two of the distinct equalization profiles in response to detecting a change in physical orientation of the portable loudspeaker between two of the distinct physical orientations, where the switch between the two distinct equalization profiles is either: a) modified by a hysteresis factor, or b) smoothed according to a predefined pattern.