发明名称 |
APPARATUS AND METHOD FOR DECIDING ADAPTIVE NOISE LEVEL FOR BANDWIDTH EXTENSION |
摘要 |
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.
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申请公布号 |
US2010094638(A1) |
申请公布日期 |
2010.04.15 |
申请号 |
US20090414768 |
申请日期 |
2009.03.31 |
申请人 |
LEE TAE-JIN;BEACK SEUNG-KWON;KIM MIN-JE;SEO JEONG-IL;JANG DAE-YOUNG;KANG KYEONG-OK;HONG JIN-WOO;PARK HO-CHONG;PARK YOUNG-CHEOL;KIM RIN-CHUL;OH SEONG-JUN;AHN CHANG-BEOM;SIM DONG-GYU |
发明人 |
LEE TAE-JIN;BEACK SEUNG-KWON;KIM MIN-JE;SEO JEONG-IL;JANG DAE-YOUNG;KANG KYEONG-OK;HONG JIN-WOO;PARK HO-CHONG;PARK YOUNG-CHEOL;KIM RIN-CHUL;OH SEONG-JUN;AHN CHANG-BEOM;SIM DONG-GYU |
分类号 |
G10L21/00 |
主分类号 |
G10L21/00 |
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