Patent ID: 9305563
Filing Date: 2016-04-05
CPC Classification: G10L

Claim Text:
1. An audio signal processing method comprising: receiving an audio signal including a super wide band; obtaining a frequency-converted coefficient corresponding to the super wide band by performing frequency conversion with respect to the audio signal; determining that a current frame is a harmonic mode based on the frequency-converted coefficient corresponding to the super wide band; quantizing the frequency-converted coefficient corresponding to the super wide band based on the harmonic mode; generating target vectors using maximum pulses and the frequency-converted coefficient corresponding to the super wide band; vector-quantizing the target vectors and positions of the maximum pulses; quantizing the positions of the maximum pulses; and transmitting, to a decoder, the audio signal including the quantized frequency-converted coefficient corresponding to the super wide band, mode information indicating the current frame is the harmonic mode, the quantized target vectors, and the quantized positions of the maximum pulses.