ENCODING AND DECODING OF PULSE AND RESIDUAL PARTS OF AUDIO SIGNAL Russian patent published in 2024 - IPC G10L19/20 

FIELD: computer engineering.

SUBSTANCE: invention relates to computer engineering for processing audio data. Technical result is achieved due to stages, at which: pulse part (P) is extracted from audio signal (PCM_i) by means of audio signal (PCM_i) spectrogram determination, wherein the spectrogram has a higher temporal resolution than coder of (152, 156') signals; the extracted pulse part (P) is encoded to obtain an encoded pulse part (CP); residual (y_m, R) signal extracted from audio signal (PCM_i) is encoded to obtain an encoded residual (CR) signal, wherein the residual (R) signal is extracted from the audio signal (PCM_i) by reducing or excluding the pulse part (P) from the audio signal (PCM_i); and the encoded pulse part (CP) and the encoded residual (CR) signal are output to create the encoded signal.

EFFECT: high coding efficiency for pulse coding.

30 cl, 31 dwg