METHOD AND DEVICE FOR PROCESSING AUDIO SIGNAL
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United States of America Patent
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Issued Date -
Jun 25, 2015
app pub date -
Jul 26, 2013
filing date -
Jul 31, 2012
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a method and device for processing an audio signal, and the method comprises the steps of: receiving a down-mix (DMX) signal; receiving information on an inter-channel phase difference (IPD) corresponding to a phase difference between a first phase channel and a second phase channel; receiving an inter-channel level difference corresponding to a level difference between the first phase channel and the second phase channel; determining the definition of a first weight and a second weight on the basis of the inter-channel level difference; calculating the first weight and the second weight by using the IPD according to the determined definition; generating information on an overall phase difference (OPD) corresponding to a phase difference between the first phase channel and the DMX signal on the basis of the first weight and the second weight.
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