Conversational Evaluation of Speech Bandwidth Extension Using a Mobile Handset

被引：3

作者：

Pulakka, Hannu ^{[1
]}

Laaksonen, Laura ^{[2
]}

Myllyla, Ville ^{[2
]}

Yrttiaho, Santeri ^{[1
]}

Alku, Paavo ^{[1
]}

机构：

[1] Aalto Univ, Dept Signal Proc & Acoust, Espoo, Finland

[2] Nokia Smart Devices, Tampere, Finland

来源：

IEEE SIGNAL PROCESSING LETTERS | 2012年 / 19卷 / 04期

基金：

芬兰科学院;

关键词：

Bandwidth extension; conversational evaluation; speech enhancement; TELEPHONE SPEECH; IMPLEMENTATION;

D O I：

10.1109/LSP.2012.2187445

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The quality of narrowband telephone speech can be improved by artificial bandwidth extension. So far, bandwidth extension methods have been evaluated with objective measures and subjective listening-only tests, whereas realistic conversational evaluations have been rare. This article presents a conversational evaluation of two bandwidth extension methods in comparison with narrowband and wideband references. The evaluation was carried out using a mobile handset with a wired earpiece and microphone both in silence and in simulated street noise. The results indicate that speech processed with one of the bandwidth extension methods was preferred over narrowband speech.

引用

页码：203 / 206

页数：4

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