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Register a new userA Study of The Effectiveness and Sound Quality in Audio Compression Algorithms
دراسة فعالية و جودة الصوت في خوارزميات ضغط الصوت
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Tishreen University ورقة بحثية
Publication date
2016
fields
Communication Engineering
and research's language is
العربية
Authors
فاتن فاروسي( باحث )
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يعد الصوت عنصراً أساسياً من عناصر الأوساط المتعددة، و نتيجة الحاجة إلى استخدامه في كثير من التطبيقات الحياتية كالبث التلفزيوني و برامج التواصل، لذا كانت الضرورة لوجود تقنيات لمعالجة إشارة الصوت من ضغط و تحسين و تقليل ضجيج. تكمن أهمية عملية ضغط البيانات في تخفيض معدل البتات المستخدمة، و ذلك عن طريق ترميز المعلومات باستخدام عدد أقل من البتات من التمثيل الأصلي من أجل الإرسال و التخزين. حيث تقوم بتحديد المعلومات غير الضرورية و إزالتها، أي تعطي المعلومات التي ضُغطت ضغط الاستخدام ما نحتاجه كشكل أساسي و ليس أدق التفاصيل. يهدف البحث إلى دراسة كيفية معالجة الصوت و الإشارة الموسيقية، و هي عملية تضم بعض التطبيقات كالترميز و الضغط الرقمي بهدف النقل الفعال و التخزين على الهواتف النقالة و مشغلات الموسيقا المحمولة، و نمذجة واستنساخ صوت الآلات الموسيقية و قاعات الموسيقا و توافقيات الموسيقا الرقمية، و تحرير الموسيقا الرقمية، و تصنيف محتوى الموسيقا بالإضافة إلى أمور أخرى.
The sound is an essential component of multimedia, and due to the needto be used in many life applications such as television broadcasting andcommunication programs, so it was necessary for the existence of audio signal processing techniquessuch as compressing, improving, and noisereduction. Data compression process aims to reduce the bit rate used, by doing encoding information using fewer bits than the original representation for transmitting and storing. By this process,the unnecessary information is determined and removed, that means it gives the compressed information for useable compression, which we need as a fundamental, not the minutest details. This research aims to study how to process sound and musical signal. It's a process that consists of a wide range of applications like coding and digital compression for the effective transport and storage on mobile phones and portable music players, modeling and reproduction of the sound of musical instruments and music halls and the harmonics of digital music, editing digital music, and classification of music content, and other things.
References used
MUSMANN, H, G. "Genesis of the MP3 Audio Coding Standard". Transactions on Consumer Electronics. IEEE, 2006
DEHERY, Y, F. "MUSICAM Source Coding". AES 10th International Conference. Kensington, London, England. 1991
GLOVER, I; GRANT, P. "Digital Communications". University of Bradford, University of Edinburgh. Prentice Hall
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