FIELD: physics.
SUBSTANCE: audio/speech coding method includes determining a mixed codebook vector based on an incoming audio/speech signal, wherein the mixed codebook vector includes a recording amount of the first codebook from the first codebook and the second codebook recording from the second codebook. The method further includes generating a coded audio signal based on the specific mixed codebook vector and transmitting an index of the coded excitation of the specific mixed codebook vector.
EFFECT: increasing the perceived quality of the speech signal in comparison with the coding systems using only pulse excitation or only noise excitation.
26 cl, 17 dwg
