METHOD FOR ENCODING AND DECODING AUDIO SIGNAL USING NORMALIZING FLOW, AND TRAINING METHOD THEREOF
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United States of America Patent
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Issued Date -
Sep 21, 2023
app pub date -
Jan 4, 2023
filing date -
Mar 15, 2022
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Abstract
A method for encoding an input signal using N flow blocks (N is a natural number greater than or equal to 2) and (N−1) split block(s), which is performed by a processor, may comprise: transmitting, by a k-th flow block (k is a natural number greater than or equal to 1 and less than or equal to N−1) among the N flow blocks, a k-th transformation signal obtained by transforming a received signal into a latent representation to a k-th split block among the (N−1) split block(s); splitting, by the k-th split block, the k-th transformation signal by a predetermined ratio, into a first split signal and a second split signal; transmitting, by the k-th split block, the first split signal to a (k+1)-th flow block; and quantizing a signal transformed by an N-th flow block and the second split signals using a quantization block.
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