کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
565553 875779 2006 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Band-pass filtering of the time sequences of spectral parameters for robust wireless speech recognition
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Band-pass filtering of the time sequences of spectral parameters for robust wireless speech recognition
چکیده انگلیسی

In this paper we address the problem of automatic speech recognition when wireless speech communication systems are involved. In this context, three main sources of distortion should be considered: acoustic environment, speech coding and transmission errors. Whilst the first one has already received a lot of attention, the last two deserve further investigation in our opinion. We have found out that band-pass filtering of the recognition features improves ASR performance when distortions due to these particular communication systems are present. Furthermore, we have evaluated two alternative configurations at different bit error rates (BER) typical of these channels: band-pass filtering the LP-MFCC parameters or a modification of the RASTA-PLP using a sharper low-pass section perform consistently better than LP-MFCC and RASTA-PLP, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Speech Communication - Volume 48, Issue 10, October 2006, Pages 1379–1398
نویسندگان
, , , ,