FIELD: acoustics.
SUBSTANCE: method for audio signal processing consists in decoding the received signal, obtaining the energy spectrum wherein the energy dip occurred, filtering and dividing the decoded signal into low-frequency bands; calculating the average energy for multiple low-frequency band signals, calculating the ratio of one selected low-frequency band signal by calculating the ratio of the average energy of the low-frequency band signals to the energy of the selected low-frequency band signal, multiplying the low-frequency band signal by the ratio to even the energy dip of the low-frequency band signals. A frequency shift of the evened low-frequency band signals is then executed, wherein, by means of said frequency shift, high-frequency band signals are generated from the low-frequency band signals, the low-frequency band signals and the high-frequency band signals are combined to generate an output signal; and outputting the output signal.
EFFECT: increase in the quality of sound.
4 cl, 14 dwg
