Ladas & Parry LLP
Apparatus and method for deciding adaptive noise level for bandwidth extension
An apparatus and method for deciding an adaptive noise level for bandwidth extension are provided. The apparatus includes a noise level decider for deciding a high-band noise level for bandwidth extension according to tonality of an input signal, a pitch frequency analyzer for detecting a pitch frequency of the input signal and analyzing correlation between the detected pitch frequency and a frequency channel, and a noise level controller for adaptively controlling the decided high-band noise level based on the analyzed correlation of the pitch frequency and the frequency channel.
Kwangwoon University Industry-Academic Collaboration Foundation Electronics and Telecommunications Research Institute
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Dong-Gyu Jin-Woo Seung-Kwon Rin-Chul Young-Cheol Jeong-Il Kyeong-Ok Ho-Chong Chang-Beom Seong-Jun Dae-Young Tae-Jin Min-Je
Sim Hong Beack Kim Park Seo Kang Park Ahn Oh Jang Lee Kim