Physics, Linear Systems and Electromagnetic Fields

The students will understand the analogies among acoustic, mechanical and electric systems. Likewise, they will be able to understand, assess and address the design of different transductors (mainly microphones and loudspeakers), and, consequently, they will learn about the importance of these transductors in the professional audiovisual systems. They will learn the principles of room acoustics to be able (with the required electroacoustics devices) to desing a basic sound reinforcement system.

CB1: Students have demonstrated possession and understanding of knowledge in an area of study that builds on the foundation of general secondary education, and is usually at a level that, while relying on advanced textbooks, also includes some aspects that involve knowledge from the cutting edge of their field of study. CB2: Students are able to apply their knowledge to their work or vocation in a professional manner and possess the competences usually demonstrated through the development and defence of arguments and problem solving within their field of study. ETEGISA3: Ability to develop projects for locales and installations, aimed at production and recording of audio and video signals. ETEGISA4: Ability to implement acoustic engineering projects for the following: acoustic conditioning and insulation for locales; PA system installation; specification, analysis and selection of electroacoustic transducers; measurement, analysis and control systems for sound and vibrations; environmental acoustics; underwater acoustics systems. RA1: To acquire the knowledge and understanding of the general basic fundamentals of engineering, as well as, in particular, of multimedia communications networks and services, audio and video signal processing, room acoustic control, distributed multimedia systems and interactive multimedia applications specific to Sound and Image Engineering within the telecommunications family. RA3: To be competent to carry out engineering designs in their field within Sound and Image Engineering, working as a team. Design encompasses devices, processes, methods and objects, and specifications that are broader than strictly technical, including social awareness, health and safety, environmental and commercial considerations. RA4: To be able to carry out research and carry out innovative contributions in the field of Sound and Image Engineering, including bibliographic search and comprehension as well as the design and development of experiments that solve the challenges of knowledge in the field of audiovisual systems, in terms of the capture, processing, adaptation, diffusion and consumption of multimedia contents, as well as associated networks, services and applications, which justifies the scientific interest of this Degree. RA5: Be competent to apply the knowledge acquired to solve problems and design audiovisual networks and services, to configure their devices, as well as to deploy adaptive, personal audiovisual applications and services on them, bringing network intelligence to the value for the user, maximising the potential of multimedia networks and services in the different social and economic spheres, knowing the environmental, commercial and industrial implications of the practice of engineering in accordance with professional ethics.

1.- Electro-mechanical-acoustical analogies. 2.- Physical fundamentals of transducers. Classification. 3.- Microphones. Characteristics. Types. Design parameters. 4.- Loudspeakers and acoustic enclosures. Types of loudspeakers. Design of acoustic enclosures. Thiele-Small parameters. 5.- Multiple-driver speaker systems. Bass-Reflex systems. 6.- Principles of room acoustics: statistical theory, geometric theory, theory ondulatory and psychoacoustics. 7.- Microphones and loudspeakers interaction with the remaining equipment of an electroacoustic system. Sonorization.

Four teaching activities are proposed: theoretical classes, class exercises, and lab exercises. THEORETICAL CLASSES The theoretical class will be given in the blackboard, with slides or by any other means to illustrate the concepts of the lectures. In these classes the explanation will be completed with examples. In these sessions the student will acquire the basic concepts of the course. It is important to highlight that these classes will require the initiative and the personal and group involvement of the students (there will be concepts that the students themselves should develop). CLASS EXERCISES Before the exercise class, the student will have available the exercise formulation. In this type of classes, the students will be encouraged to form work groups so that they actively participate in the problem solving task. These class exercises help the students assimilate the concepts explained during the theoretical class in a variety of cases, and, furthermore, auto-assess their knowledge. GUIDED PROJECTS The students, working in small groups, will carry out guided projects on specific and more advanced subjects in the field of acoustics. To this end, the students will be given a detailed guide and some specific tutoring. LABORATORY EXERCISES A methodology aiming to measure loudspeaker and microphone characteristics using several techniques will be developed through the lab exercises. Additionally, some basic notions of sound reinforcement design will be given. In this way, the students will consolidate the theoretical concepts and learn to use both instrumentation for electroacoustic equipment characterization.