September 22-25, 1997
A new block recursive algorithm is introduced for effective FAMlet transform implementation. When the Fourier transform is combined with the algorithm a nonuniform resolution filterbank is created. The algorithm allows to approximate frequency resolutions of any type, the ERB-rate scale included. The signals can be vector based critically down sampled which allows a perfect reconstruction.
Bibliographic reference. Laine, Unto K. (1997): "Critically sampled PR filterbanks of nonuniform resolution based on block recursive FAMlet transform", In EUROSPEECH-1997, 697-700.