Staas & Halsey LLP
Apparatus and method for encoding and decoding of integrated speech and audio utilizing a band expander with a spectral band replication (SBR) to output the SBR to either time or transform domain encoding according to the input signal characteristic
Provided are an apparatus and a method for integrally encoding and decoding a speech signal and a audio signal. The encoding apparatus may include: an input signal analyzer to analyze a characteristic of an input signal; a first conversion encoder to convert the input signal to a frequency domain signal, and to encode the input signal when the input signal is a audio characteristic signal; a Linear Predictive Coding (LPC) encoder to perform LPC encoding of the input signal when the input signal is a speech characteristic signal; and a bitstream generator to generate a bitstream using an output.
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE KWANGWOON UNIVERSITY INDUSTRY—ACADEMIC COLLABORATION FOUNDATION
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Seung-Kwon Kyeongok Jin-Woo Tae Jin Min Je Dae Young Young-cheol Jeongil Hochong
Baek Kang Hong Lee Kim Jang Park Seo Park