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: Research Article Database of Multichannel In-Ear and Behind-the-Ear Head-Related and Binaural Room Impulse Responses | Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 2009 Article ID 298605 10 pages doi 2009 298605 Research Article Database of Multichannel In-Ear and Behind-the-Ear Head-Related and Binaural Room Impulse Responses H. Kayser S. D. Ewert J. Anemuller T. Rohdenburg V. Hohmann and B. Kollmeier Medizinische Physik Universitat Oldenburg 26111 Oldenburg Germany Correspondence should be addressed to H. Kayser Received 15 December 2008 Accepted 4 June 2009 Recommended by Hugo Fastl An eight-channel database of head-related impulse responses HRIRs and binaural room impulse responses BRIRs is introduced. The impulse responses IRs were measured with three-channel behind-the-ear BTEs hearing aids and an in-ear microphone at both ears of a human head and torso simulator. The database aims at providing a tool for the evaluation of multichannel hearing aid algorithms in hearing aid research. In addition to the HRIRs derived from measurements in an anechoic chamber sets of BRIRs for multiple realistic head and sound-source positions in four natural environments reflecting dailylife communication situations with different reverberation times are provided. For comparison analytically derived IRs for a rigid acoustic sphere were computed at the multichannel microphone positions of the BTEs and differences to real HRIRs were examined. The scenes natural acoustic background was also recorded in each of the real-world environments for all eight channels. Overall the present database allows for a realistic construction of simulated sound fields for hearing instrument research and consequently for a realistic evaluation of hearing instrument algorithms. Copyright 2009 H. Kayser et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. Introduction .
