A bandwidth extension scheme for G.711 speech by embedding multiple highband gains

Hae Yong Yang; Kyung Hoon Lee; Sung Jea Ko

doi:10.1587/transcom.E94.B.2941

A bandwidth extension scheme for G.711 speech by embedding multiple highband gains

Hae Yong Yang, Kyung Hoon Lee, Sung Jea Ko

Research output: Contribution to journal › Article › peer-review

Abstract

We present an improvement to the existing steganographybased 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.

Original language	English
Pages (from-to)	2941-2944
Number of pages	4
Journal	IEICE Transactions on Communications
Volume	E94-B
Issue number	10
DOIs	https://doi.org/10.1587/transcom.E94.B.2941
Publication status	Published - 2011 Oct

Keywords

Bandwidth extension
Data embedding
G.711 speech coder
Multiple highband gains

ASJC Scopus subject areas

Software
Computer Networks and Communications
Electrical and Electronic Engineering

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10.1587/transcom.E94.B.2941

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A bandwidth extension scheme for G.711 speech by embedding multiple highband gains

Abstract

Keywords

ASJC Scopus subject areas

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