FIELD: information technology.
SUBSTANCE: invention relates to means of encoding and decoding of sound. Subband power calculation module calculates subband signal power for high-frequency subband among multiple sub-bands, components of input signal. High-frequency subband power calculation module performs weighing of power subband, having high power, as for subband, having plurality of high frequency subband, for calculation of power of high frequency subband for subband. Multiplexing scheme multiplexes encoded data and encoded data of low frequency for output. Encoded data of high frequency is selected based on high-frequency subband power and is obtained by encoding information used for producing high-frequency component of input signal by estimating, and coded data of low frequency is obtained by encoding low frequency components of input signal.
EFFECT: technical result consists in improvement of accuracy of audio signal, obtained as result of decoding.
17 cl, 6 dwg
| Title |
Year |
Author |
Number |
| APPARATUS AND METHOD FOR ENCODING AND DECODING METHOD DEVICE AND PROGRAM |
2012 |
|
RU2586011C2 |
| SIGNAL PROCESSING DEVICE AND METHOD, ENCODER AND ENCODING METHOD, DECODER AND DECODING METHOD AND PROGRAMME |
2011 |
- Jamamoto Juki
- Tinen Toru
- Khonma Khirojuki
- Mitsufudzi Jukhki
|
RU2563160C2 |
| SIGNAL PROCESSING DEVICE AND METHOD, ENCODER AND ENCODING METHOD, DECODER AND DECODING METHOD AND PROGRAMME |
2011 |
- Jamamoto Juki
- Tinen Toru
- Khonma Khirojuki
- Mitsufudzi Jukhki
|
RU2550550C2 |
| SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD, ENCODER AND ENCODING METHOD, DECODER AND DECODING METHOD AND PROGRAMME |
2011 |
- Jamamoto Juki
- Tinen Toru
- Khonma Khirojuki
- Mitsufudzi Jukhki
|
RU2571565C2 |
| ENCODING DEVICE AND ENCODING METHOD, DECODING DEVICE AND DECODING METHOD AND PROGRAM |
2015 |
- Tinen Toru
- Nisiguti Masayuki
- Si Runyu
- Khatanaka Mitsuyuki
- Yamamoto Yuki
|
RU2689438C2 |
| GENERATION OF NOISE IN AUDIO CODECS |
2012 |
- Setiavan Pandzhi
- Vilde Shtefan
- Lombar Antoni
- Ditts Martin
|
RU2585999C2 |
| SPECTRAL SMOOTHING DEVICE, ENCODING DEVICE, DECODING DEVICE, COMMUNICATION TERMINAL DEVICE, BASE STATION DEVICE AND SPECTRAL SMOOTHING METHOD |
2009 |
- Jamanasi Tomofumi
- Osikiri Masakhiro
- Morii Tosijuki
- Ekhara Khirojuki
|
RU2510536C9 |
| SYSTEMS, METHODS AND DEVICE FOR GENERATION OF EXCITATION IN HIGH-FREQUENCY RANGE |
2006 |
- Vos Kon Bernard
- Kandkhadaj Anantkhapadmanabkhan A.
|
RU2402827C2 |
| CODING DEVICE AND METHOD, DECODING DEVICE AND METHOD AND TRANSMISSION SYSTEM |
2006 |
- Fukukhara Takakhiro
- Khosaka Kazukhisa
- Ando Katsutosi
|
RU2340114C1 |
| FREQUENCY BAND EXTENSION METHOD AND APPARATUS, ENCODING METHOD AND APPARATUS, DECODING METHOD AND APPARATUS, AND PROGRAMME |
2010 |
- Jamamoto Juki
- Tinen Toru
- Khonma Khirojuki
- Mitsufudzi Jukhki
|
RU2549116C2 |
