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Article
A Proposed Method for the Sound Recognition Process

Authors: Azad R. Kareem --- Marwa F. Jassim --- Mustafa Q. Ali
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2018 Volume: 36 Issue: 8 Part (A) Engineering Pages: 939-945
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

One of the most important issues in the signal-processing world is the issue of sounds differentiations. It has many applications in identifying the sources of the sounds, and many researches nowadays serves in this field and all of them looking for the best way to have a high accuracy implementation of the discrimination process. Sounds can be recognized under suitable recording conditions by converting the sound signal from time to frequency domain (because Sound signal of a source differs from other sources by the frequency contents. This property serves to differentiate between sounds, and differences become visually apparent when the spectrograms of the signals are compared). All the classical methods based on the amplitude comparison of the spectrum. The main problem faces the recognition process is the 100% system accuracy cannot be achieved. A proposed strategy suggested solving the problem. It is based on the comparison of slops between spectrogram sections instead of the magnitude comparison and taking the minimum differences between the pattern and references stored in a database. The tested examples with the help of Matlab program proved that the proposed method is more accurate than the conventional methods.


Article
تفعيل الذراع الالي بشريا من خلال وحدة التعشيق لتطوير دعم عمليات التغذية
An Interactive Human Interface Arm Robot with the Development of Food Aid

Author: نشوان ضياء زكي
Journal: Tikrit Journal of Engineering Sciences مجلة تكريت للعلوم الهندسية ISSN: 1813162X 23127589 Year: 2012 Volume: 19 Issue: 1 Pages: 44-53
Publisher: Tikrit University جامعة تكريت

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Abstract

يعتبر هذا النظام من الأنظمة المساعدة باستخدام الروبوتات(الرجل الألي) لذوي الاحتياجات الخاصة (المعاقين) والذي يحتاجون إلى دعم في وجبات الطعام. إن شكل هكذا نظام يستطيع التواصل مع الإنسان باستخدام التشخيص الصوتي ودوال العبارات الكلامية وباستخدام المعالجة الصورية. إن استخدام نظام المعالجة الصورية يمكن النظام من تشخيص العناصر التي سوف يتم التعرف عليها مثل الصحن، الكوب وغيرها. إن طريقة الجمع بين عمليتي التشخيص الصوتي والمعالجة الصورية تمكن من عملية التواصل بين الاله والإنسان.

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