A modulated complex lapped transform and its applications to audio processing

被引：83
作者：
Malvar, H [1 ]
机构：
[1] Microsoft Res, Redmond, WA 98052 USA
来源：
ICASSP '99: 1999 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, PROCEEDINGS VOLS I-VI | 1999年
关键词：
D O I：
10.1109/ICASSP.1999.756248
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
This paper introduces a new structure for a modulated complex lapped transform (MCLT), which is a complex extension of the modulated lapped transform (MLT). The MCLT is a particular kind of a 2x oversampled generalized DFT filter bank, whose real part corresponds to the MLT. That property can be used for efficient implementation of joint echo cancellation, noise reduction, and coding, for example. Fast algorithms for the MCLT are presented, as well as examples that show the good performance of the MCLT in noise reduction and echo cancellation.
引用
收藏
页码：1421 / 1424
页数：4
相关论文
共 11 条
[1]  
DELEON PL, 1996, SUBBAND WAVELET TRAN
[2]   ADAPTIVE FILTERING IN SUBBANDS WITH CRITICAL SAMPLING - ANALYSIS, EXPERIMENTS, AND APPLICATION TO ACOUSTIC ECHO CANCELLATION [J].
GILLOIRE, A ;
VETTERLI, M .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1992, 40 (08) :1862-1875
[3]  
GODSILL S, 1998, APPLD IGITAL SIGNAL
[4]  
MALVAR H, 1992, SIGNAL PROCESSING LA
[5]   Biorthogonal and nonuniform lapped transforms for transform coding with reduced blocking and ringing artifacts [J].
Malvar, HS .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1998, 46 (04) :1043-1053
[6]  
MALVAR HS, 1988, P IEEE ISCAS MONT CA
[7]  
Princen J. P., 1987, Proceedings: ICASSP 87. 1987 International Conference on Acoustics, Speech, and Signal Processing (Cat. No.87CH2396-0), P2161
[8]  
Rao K. R., 2014, Discrete cosine transform: algorithms, advantages, applications
[9]   The modulated lapped transform, its time-varying forms, and its applications to audio coding standards [J].
Shlien, S .
IEEE TRANSACTIONS ON SPEECH AND AUDIO PROCESSING, 1997, 5 (04) :359-366
[10]  
Vaidyanathan P. P., 1993, MULTIRATE SYSTEMS FI
12