Patent ID: 8712766
Filing Date: 2014-04-29
Classification: G10L

Abstract:
1. A method for analysis-by-synthesis encoding of an information signal comprising steps of: generating a reference signal based on the information signal; generating a first synthetic signal based on at least a first pitch related codebook; generating a second synthetic signal based on at least a second pitch related codebook; identifying a fixed codebook from a plurality of fixed codebooks based on the first synthetic signal and the second synthetic signal; selecting, via a processor, a codebook configuration parameter based on the first synthetic signal and the second synthetic signal and the fixed codebook, wherein the codebook configuration parameter identifies the fixed codebook; outputting the one or more codebook configuration parameters for use in reconstructing an estimate of the input signal; wherein a set of codevectors within the first pitch related codebook differs from a set of codevectors in the second pitch related codebook by a number of bits assigned to the codevectors in each codebook.