دراسة تأثير معاملات خوارزمية الطرح الطيفي المعدَلة وطول النافذة الزمنية في تحسين الإشارات الصوتية

Authors

  • فائق عراج
  • عادل ديوب

Abstract

إن إلغاء الضجيج من الكلام الملوث هو حقل هندسي يدرس التقنيات المستخدمة لاستعادة الإشارة الأصلية من الإشارة الملوثة بأنواع مختلفة من الضجيج مثل الضجيج عريض الحزمة وضيق الحزمة وأنواع أخرى موجودة بالبيئة وتعتبر تقنية الطرح الطيفي الأبرز في هذا المجال. في هذا البحث سوف نناقش تأثير معاملات خوارزمية الطرح الطيفي المعدلة وطول النافذة الزمنية في تحسين الكلام الملوث بالضجيج عريض الحزمة. تمَ دراسة وتحديد قيم المعاملات المثالية وطول النافذة المثالي عند قيم مختلفة لنسبة الإشارة إلى الضجيج SNR للإشارة الملوثة وهي وتمَ مناقشة 18 حالة عند كل قيمة. أجريت المحاكاة باستخدام برنامج الماتلاب(matlab) وتمت مقارنة النتائج سماعياً وبالاعتماد على تحسين قيمة SNR لكل حالة. Speech denoising is a field of engineering that studies techniques used to recover the original signal from the noisy signal corrupted with different types of noise, such as broadband noise and narrowband noise, and other types present in environment, but the spectral subtraction technique consider the most prominent in this area . In this search we will discuss the parameters impact of the modified spectral subtraction algorithm and the time window length in the enhancement of speech that corrupted with broadband noise. We done the study and determine the ideal parameters values and the ideal window length with different values for the signal -to-noise ratio SNR for noisy speech and we discuss 18 case for each value. We done the simulation using MATLAB software and the results were compared based on improving the value of SNR for each case .

Downloads

Published

2016-12-06

How to Cite

1.
عراج ف, ديوب ع. دراسة تأثير معاملات خوارزمية الطرح الطيفي المعدَلة وطول النافذة الزمنية في تحسين الإشارات الصوتية. Tuj-eng [Internet]. 2016Dec.6 [cited 2024Apr.27];37(6). Available from: https://journal.tishreen.edu.sy/index.php/engscnc/article/view/2260

Issue

Vol. 37 No. 6 (2015): العلوم الهندسية

Section

Articles

License

Copyright (c) 2016 ttps://creativecommons.org/licenses/by-nc-sa/4.0/

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in  Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series   .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of  Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series     Publisher

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

Most read articles by the same author(s)