@inproceedings{b67d5ef4cd944ba1b7c6387228f0ccbe,
title = "Superwideband extension for AMR-WB using conditional codebooks",
abstract = "In this paper, the conditional codebook mapping (CCM) method is proposed for super-wideband extension (SWB) of speech signals to achieve a wider bandwidth up to 12.8 kHz. As we know, the performance of bandwidth extension by codebook mapping (CM) is restricted by the codebook size. The proposed CCM-based BWE method reduces the restriction while introducing a conditional codebook and is applied in AMR-WB at 19.85 kbps. Both the Objective test results in the term of Log-spectral distortion (LSD) and Perceptual Evaluation of Speech Quality (PESQ) and the subjective test results show that the CCM-based SWB extension method achieves higher speech quality compared with the CM method.",
keywords = "Bandwidth extension, codebook mapping, conditional codebook mapping, super-wideband extension",
author = "Yingxue Wang and Shenghui Zhao and Kadri Mohammed and Bukhari, {S. Danish Abbas} and Jingming Kuang",
year = "2014",
doi = "10.1109/ICASSP.2014.6854291",
language = "English",
isbn = "9781479928927",
series = "ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "3695--3698",
booktitle = "2014 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2014",
address = "United States",
note = "2014 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2014 ; Conference date: 04-05-2014 Through 09-05-2014",
}