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US 2019/0158833 A1Published application
Signal encoding method and apparatus and signal decoding method and apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsHo-sang Sung, Ki-hyun Choo, Eun-mi Oh
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Abstract
A spectrum coding method includes quantizing spectral data of a current band based on a first quantization scheme, generating a lower bit of the current band using the spectral data and the quantized spectral data, quantizing a sequence of lower bits including the lower bit of the current band based on a second quantization scheme, and generating a bitstream based on a upper bit excluding N bits, where N is 1 or greater, from the quantized spectral data and the quantized sequence of lower bits.
Claims8
A spectrum coding method comprising:
- quantizing, by at least one processor, spectral data for a plurality of important spectral component of a current band based on a first quantization scheme;
- extracting a lower bit evenly for the plurality of important spectral component of the current band from the quantized spectral data;
- generating a sequence of lower bits for a plurality of bands including the current band;
- quantizing, by the at least one processor, the sequence of lower bits based on a second quantization scheme;
- and
- generating, by the at least one processor, a bitstream including the quantized spectral data, excluding the extracted lower bits, for the current band and the quantized sequence of lower bits for the plurality of bands.
3 more elements
Dependencies are inferred from the claim text.