US Patent 11039234 Enhanced sound perception via regulated vibration

A technique for joint production of vibration and sound is provided. According to an example embodiment, the technique is provided by an apparatus including a unit for jointly producing vibration and sound to reproduce an input audio signal provided as input thereto, the unit arranged inside a padding to generate mechanical vibration that is perceivable as a vibration and sound on at least one outer surface of the padding and to radiate the sound through the at least one outer surface of the padding and a unit for regulating perceivable intensity of vibration in dependence of at least one characteristic of the input audio signal.