Registered
AUDIO SIGNAL ENCODING AND DECODING METHOD USING LEARNING MODEL, TRAINING METHOD OF LEARNING MODEL, AND ENCODER AND DECODER THAT PERFORM THE METHODS
- Inventors
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Lim Woo-Taek, Beack Seung Kwon, Lee Tae Jin, Sung Jongmo, Jang Inseon
- Application No.
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17672041 (2022.02.15)
- Publication No.
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20220262378 (2022.08.18)
- Registration No.
- 11694703 (2023.07.04)
- Country
- UNITED STATES
- Project Code
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20ZH1200, The research of the fundamental media·contents technologies for hyper-realistic media space,
Lee Tae Jin
- Abstract
- An audio signal encoding and decoding method using a learning model, a training method of the learning model, and an encoder and decoder that perform the method, are disclosed. The audio signal decoding method may include extracting a first residual signal and a first linear prediction coefficient by decoding a bitstream received from an encoder, generating a first audio signal from the first residual signal using the first linear prediction coefficient, generating a second linear prediction coefficients and a second residual signal from the first audio signal, obtaining a third linear prediction coefficient by inputting the second linear prediction coefficient into a trained learning model, and generating a second audio signal from the second residual signal using the third linear prediction coefficient.
- KSP Keywords
- Audio signal, Encoder and Decoder, Encoding and decoding, Linear Prediction Coefficient(LPC), Residual signal, Signal decoding, decoding method, learning models, linear prediction, training method