Herre, JürgenJürgenHerre2022-03-042022-03-042011https://publica.fraunhofer.de/handle/publica/22732910.1007/978-3-642-23071-4_28As an essential and renowned business field of Fraunhofer IIS, the audio and multimedia activities offer advanced technologies that enable a broad range of multimedia enabled applications. While this may happen in many different contexts, such as Internet transmission, consumer devices or mobile multimedia services of next-generation communication, it is always the quality experienced by the human listener/viewer that constitutes the essential criterion of merit which several generations of technology are striving to fulfill to an ever-increasing extent. Naturally, since the intended final receiver is the human auditory / visual system in this case, the quality experienced is subjective in nature and requires a profound understanding in psychometrics, psychoacoustics and psychovisual disciplines for its successful measurement and optimization.en621book article