Patent ID: 7426466

Claim:
A processor operable to execute a set of instructions stored in a storage medium to produce a set of quantized speech frame parameters, the parameters comprising: a predictively quantized pitch lag value; a quantized target error vector of amplitude components; predictively quantized phase values; and a quantized target error vector of linear spectral information components, wherein the pitch lag value, the amplitude components, the phase values, and the linear spectral information components have been extracted from a voiced speech frame, wherein the quantized pitch lag value δ L m , based on a formula: δ L m =L m −η m 1 L m 1 −η m 2 L m 2 − . . . −η m N L m N , wherein the values L m 1 , L m 2 . . . , L m N are the pitch lags for frames m 1 , m 2 , . . . , m N , respectively and the values η m 1 , η m 2 , . . . , η m N are weights corresponding to frames m 1 , m 2 , . . . , m N , respectively.