FIELD: physics.
SUBSTANCE: invention relates to computer engineering for processing audio data. Technical result is achieved by steps of: filtering the decoded audio signal in the low frequency band to generate a filtered audio signal in the low frequency band; and regenerating a portion of the high-frequency band of the audio signal using the filtered audio signal in the low-frequency band and high-frequency reconstruction metadata, wherein said regeneration includes spectral transfer, if patch insertion mode parameter has a first value, and said regeneration includes harmonic transposition by spreading the frequency of the phase vocoder if the patch insertion mode parameter has a second value.
EFFECT: high quality of replicating the spectral range of audio data.
8 cl, 7 dwg, 4 tbl
| Title |
Year |
Author |
Number |
| BACKWARD COMPATIBLE INTEGRATION METHODS FOR HIGH-FREQUENCY RECOVERY OF AUDIO SIGNALS |
2019 |
- Kjoerling, Kristofer
- Villemoes, Lars
- Purnhagen, Heiko
- Ekstrand, Per
|
RU2757322C2 |
| INVERSELY COMPATIBLE INTEGRATION OF TECHNIQUES OF HIGH-FREQUENCY RECONSTRUCTION FOR AUDIO SIGNALS |
2019 |
- Kjoerling, Kristofer
- Villemoes, Lars
- Purnhagen, Heiko
- Ekstrand, Per
|
RU2740688C1 |
| DECODING OF BITSTREAMS OF AUDIO WITH METADATA EXTENDED COPYING OF THE SPECTRAL BAND IN AT LEAST ONE FILLER |
2016 |
- Villemoes, Lars
- Purnhagen, Heiko
- Ekstrand, Per
|
RU2658535C1 |
| DECODING OF AUDIO BIT STREAMS WITH METADATA OF EXTENDED COPYING OF SPECTRAL BAND IN AT LEAST ONE FILLING ELEMENT |
2016 |
- Villemoes Lars
- Purnhagen Heiko
- Ekstrand Per
|
RU2760700C2 |
| DECODING OF AUDIO BIT STREAMS WITH SPECTRAL BAND EXTENDED COPY METADATA IN AT LEAST ONE FILLING ELEMENT |
2024 |
- Villemoes, Lars
- Purnhagen, Heiko
- Ekstrand, Per
|
RU2832121C1 |
| DECODING OF AUDIO BIT STREAMS WITH SPECTRAL BAND EXTENDED COPY METADATA IN AT LEAST ONE FILLING ELEMENT |
2021 |
- Villemoes, Lars
- Purnhagen, Heiko
- Ekstrand, Per
|
RU2827903C2 |
| DECODING OF AUDIO BITSTREAMS WITH METADATA OF EXTENDED COPYING OF THE SPECTRAL BAND IN AT LEAST ONE FILLER |
2016 |
- Villemoes Lars
- Purnkhagen Khejko
- Ekstrand Per
|
RU2665887C1 |
| DECODING OF BIT AUDIO STREAMS WITH METADATA OF EXTENDED COPYING OF SPECTRAL BAND IN AT LEAST ONE FILLING ELEMENT |
2016 |
- Villemoes, Lars
- Purnhagen, Heiko
- Ekstrand, Per
|
RU2764186C2 |
| INTEGRATION OF HIGH-FREQUENCY SOUND RECONSTRUCTION TECHNIQUES |
2019 |
- Kjoerling, Kristofer
- Villemoes, Lars
- Purnhagen, Heiko
- Ekstrand, Per
|
RU2792114C2 |
| INTEGRATION OF TECHNIQUES FOR HIGH-FREQUENCY RECONSTRUCTION WITH REDUCED POST-PROCESSING DELAY |
2019 |
- Kjoerling, Kristofer
- Villemoes, Lars
- Purnhagen, Heiko
- Ekstrand, Per
|
RU2758199C1 |
