Encoding system comprising a subband coder for subband coding of

Details Encoding system comprising a subband coder for subband coding of Encoding system comprising a subband coder for subband coding of

1994-03-28

1996-02-13

MacDonald, Allen R.

395 239, 395 214, G10L 900

Patent

active

054917735

ABSTRACT:
For subband coding of a signal such as a digital stereo signal, the digital signal is split into subbands each comprising at least first and second subband signal components. The subband signal components in a subband m are constituted by blocks of q samples each, represented by a certain number of bits (n.sub.mr, n.sub.m1). The number of bits is the result of allocation based on a determination of bit needs for blocks in each subband. A determination is made whether or not initially bits are to be allocated to a signal block of one component in a subband prior to the bit allocation, and irrespective of the bit need for that signal block. If it is determined that an initial bit allocation is required for a particular signal block in a subband, an initial bit allocation is also applied to at least a second corresponding signal block in that subband.

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