Design of Near Perfect Reconstruction Non-Uniform Filter Banks
Fabrizio Argenti, B. Brogelli, E. Del Re · Birkhäuser Boston eBooks · 1997
Subband coding is widely used to compress speech, audio and video signals. In some applications, for example audio compression, a non-uniform splitting of the spectrum of a digital signal can be preferable to a uniform one. Some techniques that allow to implement a non-uniform width subband decomposition are here discussed, design methods based on the cosine-modulation of more than one prototype are described and some examples of filter bank design are given. These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.