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Registered METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING ADAPTIVE SINUSOIDAL PULSE CODING
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METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING ADAPTIVE SINUSOIDAL PULSE CODING
- Inventors
- Lee Mi Suk, Bae Hyun Joo, Lee Byung Sun
- Application No.
- 13201517 (2010.02.16)
- Publication No.
- 20110301961 (2011.12.08)
- Registration No.
- 8805694 (2014.08.12)
- Country
- UNITED STATES
- Project Code
- 08MC3400, Study on Acoustic Convergence Codec and its Control Technology for FMC, Lee Byung Sun
- Abstract
- A method and an apparatus for encoding and decoding audio signals using adaptive sinusoidal coding are provided. The audio signal encoding method includes the steps of dividing a synthesized audio signal into a plurality of sub-bands, calculating the energy of each sub-band, selecting a predetermined number of sub-bands having a relatively large amount of energy from the sub-bands, and performing sinusoidal coding with regard to the selected sub-bands. Application of sinusoidal coding based on consideration of the amount of energy of each sub-band of the synthesized signal improves the quality of the synthesized signal more efficiently.
- Family