FIELD: computer technologies.
SUBSTANCE: method for stereo coding. The technical result is achieved by a decoding method designed to obtain an output stereo signal from an input stereo signal encoded by complex prediction stereo coding and including first representations of two input channels in the frequency domain, includes the following upmixing steps: (i) calculating a second representation of the first input channel in the frequency domain; and (ii) calculating an output channel based on the first and second representations of the first input channel in the frequency domain, the first representation of the second input channel in the frequency domain, and the complex prediction factor. The upmixing may be suspended in response to control data.
EFFECT: increasing the efficiency of stereo coding in the range of high bit rates.
7 cl, 19 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| AUDIO UPMIXING DEVICE WITH POSSIBILITY OF OPERATING IN A MODE WITH OR WITHOUT PREDICTION | 2023 |
|
RU2803142C1 |
| AUDIO UPMIXING DEVICE WITH THE POSSIBILITY OF OPERATING IN THE MODE WITH/WITHOUT PREDICTION | 2020 |
|
RU2799737C2 |
| AUDIO UPMIX DEVICE CONFIGURED TO OPERATE IN PREDICTION MODE OR IN MODE WITHOUT PREDICTION | 2019 |
|
RU2717387C1 |
| STEREOPHONIC CODING BASED ON MDCT WITH COMPLEX PREDICTION | 2011 |
|
RU2683175C2 |
| STEREOPHONIC CODING BASED ON MDCT WITH COMPLEX PREDICTION | 2019 |
|
RU2698154C1 |
| MDCT-BASED COMPLEX PREDICTION STEREO CODING | 2011 |
|
RU2559899C2 |
| MDCT-BASED COMPLEX PREDICTION STEREO CODING | 2011 |
|
RU2554844C2 |
| MDCT-BASED COMPLEX PREDICTION STEREO CODING | 2011 |
|
RU2525431C2 |
| AUDIO ENCODER, AUDIO DECODER AND RELATED METHODS OF PROCESSING MULTICHANNEL AUDIO SIGNALS USING COMPLEX PREDICTION | 2011 |
|
RU2577195C2 |
| AUDIO OR VIDEO ENCODER, AUDIO OR VIDEO AND RELATED METHODS OF PROCESSING MULTI-CHANNEL AUDIO OR VIDEO SIGNALS USING VARIABLE PREDICTION DIRECTION | 2011 |
|
RU2541864C2 |
