Audio encoding apparatus and method, and audio decoding apparatus and method
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United States of America Patent
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Jul 18, 2017
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app pub date -
Aug 22, 2013
filing date -
Aug 22, 2012
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Abstract
An audio encoding apparatus to encode an audio signal using lossless coding or lossy coding and an audio decoding apparatus to decode an encoded audio signal are disclosed. An audio encoding apparatus according to an exemplary embodiment may include an input signal type determination unit to determine a type of an input signal based on characteristics of the input signal, a residual signal generation unit to generate a residual signal based on an output signal from the input signal type determination unit, and a coding unit to perform lossless coding or lossy coding using the residual signal.
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