Frequency Warping and Subband Merging for Approzimating the Critical Bands with Cosine-modulated Filter Banks

摘要：

A novel approach to designing nonuniform cosine-modulated filter banks is presented. Frequency warping and subband merging are used together to obtain more freedom of frequency partitioning, and thus to approximate the critical bands of hearing more accurately. On the other hand, for a given accuracy, different compromises between warping strength and the number of channels can be investigated to minimizethe computational complexity of the system.

作者: Marek Parfieniuk Alexander Petrovsky Wanggen Wan

作者单位: Department of Real-Time Systems, Bialystok Technical University Wiejska 45A, 15-351 Bialystok, Polan School of Communication and Information Engineering, Shanghai University Shanghai 200072, P.R.China

会议类型: 国际会议

会议名称: 2008 International Conference on Audio，Language and Image Processing(2008国际声音、语言、图像过程大会)

会议地点: 镇江

会议语种:英文

页码: 1159-1166

在线出版日期: 2008-07-07（万方平台首次上网日期，不代表论文的发表时间）