FIELD: data processing.
SUBSTANCE: invention relates to audio encoding and audio decoding. Each row of the upmix matrix has M elements which enable to recover the frequency-time mosaic fragment of the audio object from the downmix signal containing the M channels. For each row in the upmix matrix, a subset of elements of the M line elements in the upmix matrix is selected. Each element in the selected subset of elements is represented by the value and position in the upmix matrix. Value and the position in the upmix matrix of each element are encoded in the selected subset of elements.
EFFECT: high efficiency of encoding audio data.
19 cl, 15 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| AUDIO CODER AND AUDIO DECODER | 2014 |
|
RU2643489C2 |
| AUDIO CODER AND AUDIO DECODER | 2014 |
|
RU2676041C1 |
| AUDIO ENCODER AND AUDIO DECODER | 2019 |
|
RU2810027C2 |
| APPARATUS AND METHOD FOR ENCODING PLURALITY OF AUDIO OBJECTS OR DEVICE AND METHOD FOR DECODING USING TWO OR MORE RELEVANT AUDIO OBJECTS | 2021 |
|
RU2823518C1 |
| METHOD FOR DECODING AND ENCODING A DOWNMIX MATRIX, METHOD FOR PRESENTING AUDIO CONTENT, ENCODER AND DECODER FOR A DOWNMIX MATRIX, AUDIO ENCODER AND AUDIODECODER | 2014 |
|
RU2648588C2 |
| AUDIO CODER AND DECODER | 2015 |
|
RU2696952C2 |
| MULTI-CHANNEL AUDIO DECODER, MULTI-CHANNEL AUDIO ENCODER, METHODS, COMPUTER PROGRAM AND ENCODED AUDIO REPRESENTATION USING A DECORRELATION RENDERED AUDIO SIGNALS | 2014 |
|
RU2665917C2 |
| CODING AND DECODING OF AUDIO SIGNALS | 2013 |
|
RU2643644C2 |
| PACKET LOSS MASKING FOR DirAC-BASED SPATIAL AUDIO CODING | 2020 |
|
RU2807473C2 |
| PRINCIPLE FOR AUDIO CODING AND DECODING FOR AUDIO CHANNELS AND AUDIO OBJECTS | 2014 |
|
RU2641481C2 |
