Multichannel signal processing method, and multichannel signal processing apparatus for performing the method
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United States of America Patent
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Mar 5, 2019
Grant Date -
Feb 1, 2018
app pub date -
Feb 17, 2016
filing date -
Feb 17, 2015
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Abstract
Provided are an encoding method of a multichannel signal, an encoding apparatus to perform the encoding method, a multichannel signal processing method, and a decoding apparatus to perform the decoding method. The decoding method may include identifying an N/2-channel downmix signal derived from an N-channel input signal; and generating an N-channel output signal from the identified N/2-channel downmix signal using a plurality of one-to-two (OTT) boxes. If a low frequency effect (LFE) channel is absent in the output signal, the number of OTT boxes may be equal to N/2 where N/2 denotes the number of channels of the downmix signal.
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