Digital filter interpolation of decoded LSFs for distributed continuous speech recognition

被引：0
|
作者：
de Alencar, V. F. S. [1 ]
Alcaim, A. [1 ]
机构：
[1] Catholic Univ, CETUC PUC RIO, Ctr Telecommun Studies, BR-22453 Rio De Janeiro, Brazil
来源：
ELECTRONICS LETTERS | 2008年 / 44卷 / 17期
关键词：
Decoding - Interpolation - Continuous speech recognition - Bandpass filters;
D O I：
10.1049/el:20089650
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：
A digital filter interpolation of decoded line spectral frequencies (LSFs) that significantly outperforms linear interpolation for large vocabulary distributed continuous speech recognition systems is presented. Experiments were conducted using linear predictive coding (LPC) and LSF-derived speech recognition features, CDHMM acoustic models, triphone units and trigram language models for Brazilian Portuguese.
引用
收藏
页码：1039 / U50
页数：2
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