FIELD: physics.
SUBSTANCE: system for generating a high-frequency signal component from the low-frequency signal component includes an analysis filter unit that generates a set of signals of the analyzed subbands of the low-frequency signal component. It also includes a non-linear processing unit for generating a synthesized subband signal with a synthesized frequency by modifying the phase of the first and the second signals of the analyzed subbands from the set of signals of the analyzed subbands and combining the signals of the analyzed subbands with the modified phase. It also includes a synthesizing filter unit for generating a high-frequency signal component from the synthesized subband signal.
EFFECT: improving the quality of the encoded audio signal.
22 cl, 30 dwg
Title | Year | Author | Number |
---|---|---|---|
HARMONIC TRANSFORMATION IMPROVED BY CROSS-PRODUCT | 2017 |
|
RU2646314C1 |
CROSS PRODUCT-ENHANCED HARMONIC TRANSFORMATION | 2018 |
|
RU2667629C1 |
HARMONIC TRANSFORMATION IMPROVED BY CROSS PRODUCT | 2022 |
|
RU2806621C1 |
HARMONIC TRANSFORMATION IMPROVED BY THE CROSS PRODUCT | 2021 |
|
RU2778834C1 |
HARMONIC TRANSFORMATION ENHANCED BY CROSS PRODUCT | 2018 |
|
RU2765618C2 |
CROSS PRODUCT-ENHANCED HARMONIC TRANSFORMATION | 2010 |
|
RU2495505C2 |
EFFICIENT COMBINED HARMONIC TRANSPOSITION | 2010 |
|
RU2490728C2 |
IMPROVED SUBBAND BLOCK BASED HARMONIC TRANSPOSITION | 2014 |
|
RU2644527C2 |
CROSS PRODUCT-ENHANCED, SUBBAND BLOCK-BASED HARMONIC TRANSPOSITION | 2011 |
|
RU2671619C2 |
CROSS PRODUCT-ENHANCED, SUBBAND BLOCK-BASED HARMONIC TRANSPOSITION | 2011 |
|
RU2551817C2 |
Authors
Dates
2017-12-15—Published
2013-04-29—Filed