Low-complexity code excited linear prediction encoding

Details Low-complexity code excited linear prediction encoding Low-complexity code excited linear prediction encoding

2011-08-16

2011-08-16

Jackson, Jakieda R (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Synthesis

C704S222000, C704S223000, C704S221000

Reexamination Certificate

active

08000967

ABSTRACT:
Information about excitation signals of a first signal encoded by CELP is used to derive a limited set of candidate excitation signals for a second correlated second signal. Preferably, pulse locations of the excitation signals of the first encoded signal are used for determining the set of candidate excitation signals. More preferably, the pulse locations of the set of candidate excitation signals are positioned in the vicinity of the pulse locations of the excitation signals of the first encoded signal. The first and second signals may be multi-channel signals of a common speech or audio signal. However, the first and second signals may also be identical, whereby the coding of the second signal can be utilized for re-encoding at a lower bit rate.

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