FIELD: data processing.
SUBSTANCE: group of inventions is aimed at audio signal processing, and in particular, at efficient encoding schemes of directional audio encoding parameters, such as directional audio coding (DirAC) metadata. The apparatus for encoding the directional audio encoding parameters containing the scattering parameters and the direction parameters comprises a parameter quantiser (210) for quantising the scattering parameters and the direction parameters, a parameter encoder (220) for encoding the quantised scattering parameters and the quantised direction parameters, and an output interface (230) for forming a representation of the encoded parameters containing information on the encoded scattering parameters and the encoded direction parameters.
EFFECT: creation of a method for encoding three-dimensional audio based on the DirAC acoustic representation and playback for transmitting immersive audio content at low bit rates.
43 cl, 42 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| APPARATUS AND METHOD FOR ENCODING OR DECODING THE DIRECTIONAL AUDIO ENCODING PARAMETERS USING VARIOUS TIME AND FREQUENCY RESOLUTIONS | 2018 |
|
RU2763313C2 |
| APPARATUS AND METHOD FOR ENCODING PLURALITY OF AUDIO OBJECTS OR DEVICE AND METHOD FOR DECODING USING TWO OR MORE RELEVANT AUDIO OBJECTS | 2021 |
|
RU2823518C1 |
| DEVICE, METHOD AND COMPUTER PROGRAM FOR ENCODING AUDIO SIGNAL OR FOR DECODING ENCODED AUDIO SCENE | 2021 |
|
RU2809587C1 |
| AUDIO DECODER, AUDIO ENCODER AND RELATED METHODS USING UNITED CODING OF SCALING PARAMETERS FOR MULTI-CHANNEL AUDIO SIGNAL CHANNELS | 2021 |
|
RU2809981C1 |
| AUDIO SCENE ENCODER, AUDIO SCENE DECODER, AND RELATED METHODS USING SPATIAL ANALYSIS WITH HYBRID ENCODER/DECODER | 2019 |
|
RU2749349C1 |
| ENCODING AND DECODING PARAMETERS | 2020 |
|
RU2803451C2 |
| PACKET LOSS MASKING FOR DirAC-BASED SPATIAL AUDIO CODING | 2020 |
|
RU2807473C2 |
| ENCODING AND DECODING OF PARAMETERS | 2020 |
|
RU2806701C2 |
| AUDIO DATA QUANTIZATION DEVICE, AUDIO DATA DEQUANTATION DEVICE AND RELATED METHODS | 2021 |
|
RU2807462C1 |
| ENCODING INFORMATION ON SET OF TRANSFORMATION KERNELS | 2020 |
|
RU2815810C2 |
