18689054. AUDIO CODING USING COMBINATION OF MACHINE LEARNING BASED TIME-VARYING FILTER AND LINEAR PREDICTIVE CODING FILTER (QUALCOMM Incorporated)
AUDIO CODING USING COMBINATION OF MACHINE LEARNING BASED TIME-VARYING FILTER AND LINEAR PREDICTIVE CODING FILTER
Organization Name
Inventor(s)
Duminda Dewasurendra of San Diego CA (US)
Guillaume Konrad Sautiere of Amsterdam (NL)
Zisis Iason Skordilis of San Diego CA (US)
Vivek Rajendran of San Diego CA (US)
AUDIO CODING USING COMBINATION OF MACHINE LEARNING BASED TIME-VARYING FILTER AND LINEAR PREDICTIVE CODING FILTER
This abstract first appeared for US patent application 18689054 titled 'AUDIO CODING USING COMBINATION OF MACHINE LEARNING BASED TIME-VARYING FILTER AND LINEAR PREDICTIVE CODING FILTER
Original Abstract Submitted
Systems and techniques are described for coding audio signals. For example, a voice decoder can generate, using a neural network, an excitation signal for at least one sample of an audio signal based on one or more inputs to the neural network, the excitation signal being configured to excite a linear predictive coding (LPC) filter. The voice decoder can further generate, using the LPC filter based on the excitation signal, at least one sample of a reconstructed audio signal. For example, the neural network can generate coefficients for one or more linear time-varying filters (e.g., a linear time-varying harmonic filter and a linear time-varying noise filter). The voice decoder can use the one or more linear time-varying filters including the generated coefficients to generate the excitation signal.
