A Bandwidth Extension Scheme for G.711 Speech by Embedding Multiple Highband Gains
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概要
- 論文の詳細を見る
We present an improvement to the existing steganography-based bandwidth extension scheme. Enhanced WB (wideband) speech quality is achieved by embedding multiple highband spectral gains into a G.711 bitstream. The number of spectral gains is selected by optimizing the quantity of the embedding data with respect to the quality of the extended WB speech. Compared to the existing method, the proposed scheme improves the WB PESQ (Perceptual Evaluation of Speech Quality) score by 0.334 with negligible degradation of the embedded narrowband speech.
- （社）電子情報通信学会の論文
- 2011-10-01
著者
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Ko Sung-jea
Department Of Electrical Engineering Korea University
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YANG Hae-Yong
Network & Communication Security Division, the Attached Institute of ETRI
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LEE Kyung-Hoon
Network & Communication Security Division, the Attached Institute of ETRI
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Yang Hae-yong
Network & Communication Security Division The Attached Institute Of Etri
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Lee Kyung-hoon
Network & Communication Security Division The Attached Institute Of Etri
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