Title
Pseudo-QMF filter banks for audio signals subband coding
Abstract
Pseudo-QMF banks in which there is no optimization involved in order to obtain the prototype filter used in the cosine modulation are an advance that simplifies the system design. In this paper, three filter bank design methods that satisfy this requirement-all of them employ any conventional designing technique-are proposed. These filter banks do not introduce phase distortion, their aliasing is comparable to the stopband gain of the prototype filter and amplitude distortion can be really minimized. The differences among them are prototype filter specifications and the initial phase factor election. When the prototype filters are appropriately designed, the total error on the reconstructed output signal is reduced. An example where an audio signal is the input signal is included.
Year
DOI
Venue
2000
10.1109/ICASSP.2000.861928
ICASSP
Keywords
Field
DocType
initial phase factor election,prototype filter specification,input signal,phase distortion,reconstructed output signal,amplitude distortion,pseudo-qmf filter bank,audio signal,filter bank,filter bank design method,prototype filter,design methodology,prototypes,subband coding,attenuation,aliasing,transfer functions,satisfiability,system design,design optimization,modulation,design method
Filter (video),Computer science,Control theory,Filter bank,Electronic engineering,High-pass filter,Adaptive filter,Artificial intelligence,Band-stop filter,Pattern recognition,Prototype filter,Butterworth filter,Filter design
Conference
ISSN
ISBN
Citations 
1520-6149
0-7803-6293-4
0
PageRank 
References 
Authors
0.34
2
4
Name
Order
Citations
PageRank
F. Cruz-Roldan1716.10
F. Lopez-Ferreras223412.16
P. Amo-Lopez3382.38
S. Maldonado-Bascon424611.97