FIELD: data processing.
SUBSTANCE: claimed group of inventions is aimed at audio signal processing, and in particular, at efficient encoding schemes of directional audio encoding parameters, such as DirAC metadata. The apparatus for encoding directional audio encoding parameters containing scattering parameters for time quanta and frequency resolution elements and direction parameters for time quanta and frequency resolution elements comprises a parameter calculation module (100) for calculating the scattering parameters with a first time or frequency resolution and for calculating the direction parameters with a second time or frequency resolution, wherein the second time or frequency resolution is different from the first time or frequency resolution; and a quantisation and encoding processor (200) for forming a quantised and encoded representation of the scattering and direction parameters.
EFFECT: ensured improvement in the quality with a reduction in the bit rate for encoding spatial audio encoding parameters.
33 cl, 42 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| APPARATUS AND METHOD FOR ENCODING OR DECODING THE DIRECTIONAL AUDIO ENCODING PARAMETERS USING QUANTISATION AND ENTROPY ENCODING | 2018 |
|
RU2763155C2 |
| 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 |
| PACKET LOSS MASKING FOR DirAC-BASED SPATIAL AUDIO CODING | 2020 |
|
RU2807473C2 |
| AUDIO DATA QUANTIZATION DEVICE, AUDIO DATA DEQUANTATION DEVICE AND RELATED METHODS | 2021 |
|
RU2807462C1 |
| ENCODING AND DECODING PARAMETERS | 2020 |
|
RU2803451C2 |
| ENCODING AND DECODING OF PARAMETERS | 2020 |
|
RU2806701C2 |
| DEVICE AND METHOD FOR ENCODING SPATIAL SOUND REPRESENTATION OR DEVICE AND METHOD FOR DECODING ENCODED AUDIO SIGNAL, USING TRANSPORT METADATA, AND CORRESPONDING COMPUTER PROGRAMS | 2020 |
|
RU2792050C2 |
| APPARATUS, METHOD, AND COMPUTER PROGRAM FOR ENCODING, DECODING, PROCESSING A SCENE, AND OTHER PROCEDURES RELATED TO DIRAC-BASED SPATIAL AUDIO ENCODING | 2018 |
|
RU2759160C2 |
