FIELD: physics, computer engineering.
SUBSTANCE: invention relates to MDCT-based complex prediction stereo coding means. The method includes obtaining an output stereo signal from an input stereo signal encoded by complex prediction stereo coding and comprising first frequency-domain representations of two input channels, the method comprising the following upmixing steps: (i) computing a second frequency-domain representation of a first input channel; and (ii) computing an output channel based on the first and second frequency-domain representations of the first input channel, the first frequency-domain representation of the second input channel and a complex prediction coefficient. Upmixing can be stopped in response to control data.
EFFECT: high efficiency of stereo coding when transmitting data with a high bit rate.
36 cl, 16 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| STEREOPHONIC CODING BASED ON MDCT WITH COMPLEX PREDICTION | 2011 |
|
RU2683175C2 |
| STEREOPHONIC CODING BASED ON MDCT WITH COMPLEX PREDICTION | 2019 |
|
RU2698154C1 |
| AUDIO UPMIXING DEVICE WITH POSSIBILITY OF OPERATING IN A MODE WITH OR WITHOUT PREDICTION | 2023 |
|
RU2803142C1 |
| AUDIO UPMIXING DEVICE PERFORMED WITH THE POSSIBILITY OF OPERATING IN THE MODE WITH/WITHOUT PREDICTION | 2023 |
|
RU2798024C1 |
| MDCT-BASED COMPLEX PREDICTION STEREO CODING | 2011 |
|
RU2554844C2 |
| 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 |
| 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 |
