@inproceedings{ea25e8cbc5e540edba31a42d06b51457,
title = "Evaluation of a speech bandwidth extension algorithm based on vocal tract shape estimation",
abstract = "In this paper, we evaluate a speech bandwidth extension (BWE) algorithm which involves phonetic and speaker dependent estimation of the high-band part of the spectral envelope. The BWE algorithm extracts speech phoneme information by using a hidden Markov model. Speaker vocal tract shape information corresponding to the wideband signal is extracted by a codebook search. Postprocessing of the estimated vocal tract shape using iterative tuning allows artifacts reduction in cases of erroneous estimation of speech phoneme or vocal tract shape. We present objective measurements results demonstrating the benefit of the iterative tuning. Subjective listening tests illustrate improved wideband quality in comparison to the input narrowband speech. The algorithm complexity is also analyzed.",
keywords = "Bandwidth extension, MUSHRA, Sensitivity function, Speech processing, Vocal tract area function",
author = "Itai Katsir and David Malah and Israel Cohen",
note = "Publisher Copyright: {\textcopyright} 2012, Institute of Electrical and Electronics Engineers Inc. All rights reserved.; International Workshop on Acoustic Signal Enhancement, IWAENC 2012 ; Conference date: 04-09-2012 Through 06-09-2012",
year = "2012",
language = "الإنجليزيّة",
series = "International Workshop on Acoustic Signal Enhancement, IWAENC 2012",
booktitle = "International Workshop on Acoustic Signal Enhancement, IWAENC 2012",
}