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AssigneeElectronics and Telecommunications Research Institute
InventorsMi-Suk Lee, Hong-Kook Kim, Young-Han Lee
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Provided is an apparatus and method for encoding a voice and audio signal by expanding a modified discrete cosine transform (MDCT) based CODEC to a wideband and a super-wideband in a communication system. The apparatus for encoding a signal in a communication system, includes a converter configured to convert a time domain signal corresponding to a service to be provided to users to a frequency domain signal, a quantization and normalization unit configured to calculate and quantize gain of each subband in the converted frequency domain signal and normalize a frequency coefficient of the each subband, a search unit configured to search patch information of each subband in the converted frequency domain signal using the normalized frequency coefficient, and a packetizer configured to packetize the quantized gain and the searched patch information and encode gain information of each subband in the frequency domain signal.
An apparatus for encoding a signal in a communication system, comprising:
A method for encoding a signal in a communication system, comprising:
Dependencies are inferred from the claim text.