Digital Signal Processing/ 4th Class/ 2020-2021 Dr. Abbas Hussien & Dr. Ammar Ghalib Difficulty of implementing certain operations Nonlinear operations Time-varying operations Difficulty of storing information Digital signal processing (DSP) system: Digital signal processing (DSP) is one of the most powerful technologies that will shape science and engineering in the twenty-first century. Revolutionary changes have already been made in aboard range of fields: communications, radar and sensor. DSP converts signals that naturally accrue in analog form (such as sound, video and information from sensors) to digital form and uses digital techniques to enhance and modify analog signal data for ...
References – Audio signals processing • Theory and Applications of Digital Speech Processing, Lawrence Rabiner , Ronald Schafer , Pearson 2011 • DAFX: Digital Audio Effects by Udo Zolzer (2nd Edition 2011) , JohnWiley & Sons, Ltd. First edition can be found at http://books.google.com.hk • The Audio Programming Book by Richard Boulanger, Victor Lazzarini 2010, The MIT press, can be found at CUHK e-library • Digital Audio Signal Processing by Udo Zolzer, Wiley 2008. • Real sound synthesis for interactive applications : by Perry Cook, AK Peters – Machine learning • https://www.tensorflow.org/tutorials Audio signal processing, v.2 ...
Signals Flow of information Measured quantity that varies with time (or position) Electrical signal received from a transducer (microphone, thermometer, accelerometer, antenna, etc.) Electrical signal that controls a process SVD background The Singular Value Decomposition (SVD) of a rectangular matrix A is a decomposition of the form T A = U S V U and V are orthogonal matrices and S is a diagonal matrix The singular vectors form orthonormal bases, and the important relation A v = s u i i i shows that each right singular vectors is mapped onto the corresponding left singular vector, and the ...
Application Areas • Control • Communications • Signal Processing Control Applications • Industrial control and automation (Control the velocity or position of an object) • Examples: Controlling the position of a valve or shaft of a motor • Important Tools: – Time-domain solution of differential equations – Transfer function (Laplace Transform) – Stability Communication Applications • Transmission of information (signal) over a channel • The channel may be free space, coaxial cable, fiber optic cable • A key component of transmission: Modulation (Analog and Digital Communication) Modulation • Analog Modulation: Transmitting audio signals. X (t) A x (t)c o s ...
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