tailieunhanh - Báo cáo hóa học: " Editorial Werner Verhelst Department of Electronics and Information Processing, "

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Editorial Werner Verhelst Department of Electronics and Information Processing, | EURASIP Journal on Applied Signal Processing 2005 9 1289-1291 2005 Hindawi Publishing Corporation Editorial Werner Verhelst Department of Electronics and Information Processing Vrije Universiteit Brussel 1050 Brussel Belgium Email wverhels@ Jurgen Herre Fraunhofer Institute for Integrated Circuits IIS 91058 Erlangen Germany Email hrr@ Gernot Kubin Signal Processing and Speech Communication Laboratory Graz University of Technology 8010 Graz Austria Email Hynek Hermansky IDIAP Research Institute 1920 Martigny Switzerland Email hynek@ S0ren Holdt Jensen Department of Communication Technology Institute of Electronic Systems Aalborg University Fredrik Bajers Vej 7A DK-9220 Aalborg Denmark Email shj@ Anthropomorphic systems process signals at the image of man. They are designed to solve a problem in signal processing by imitation of the processes that accomplish the same task in humans. In the area of audio and speech processing remarkable successes have been obtained by anthropomorphic systems perceptual audio coding even caused a landslide in the music business. At first sight it could seem obvious that the performance of audio processing systems should benefit from taking into account the perceptual properties of human audition. For example front ends that extract perceptually meaningful features currently show the best results in speech recognizers. However their features are typically used for a stochastic optimization that is itself not anthropomorphic at all. Thus it is not obvious why they should perform best and perhaps the truly optimal features have not yet been found because after all airplanes do not flap their wings. In general we believe that there are several situations when an anthropomorphic approach may not be the best solution. First its combination with nonanthropomorphic systems could result in a suboptimal overall performance the quantization noise that was cleverly concealed by a .