Low computational-complexity digital filter bank for encoder, de

Details Low computational-complexity digital filter bank for encoder, de Low computational-complexity digital filter bank for encoder, de

1991-06-05

1994-03-22

MacDonald, Allen R.

G10L 900

Patent

active

052972364

ABSTRACT:
The invention relates in general to digital encoding and decoding of information. More particularly, the invention relates to efficient implementation of digital analysis and synthesis filter banks used in encoding and decoding. The invention permits the length of a digital transform used to implement critically-sampled analysis and synthesis filter banks to be adaptively selected.

REFERENCES:
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Gluth, "Regular FFT-Related Transform Kernels for DCT/DST-Based Polyphase Filter Banks," ICASSP 1991 Conf. Proc., vol. 3, May 1991, pp. 2205-2208.
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