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51221 Electroacoustics
Danish title: Elektroakustik

Type: Å, Language: EED
Credit points: 5 point
Previous course: C5121
Offered by: Department of Acoustic Technology (AT)
No credit points with: C5121
Prerequisite: 51001/C5101.45020/C4901
Recommended semester: 4th -7th semester
Scope and form: Lectures, exercises and review of written exercises.
Examination: Written exam (13 point scale )
Remarks: The students are presumed to have a profound knowledge of simple analog electrical circuits, including Bode-plots, coupled resonance circuits and basic mechanical physics.
Contact person: Knud Rasmussen, AT, Building 352, Tel. +45 4525 3937
Aim: To give the student a basic knowledge of acoustics and electroacoustic components to an extent that allows him to understand and evaluate the acoustic elements in telecommunication systems and in using electroacoustic transducers. Further, the course introduces electroacoustic measuring and calibration techniques.
Contents: Dynamical analogies between mechanical, acoustic and electrical systems. Transducers: loudspeakers, headphones, microphones and accelerometers; theory, constructions, directivity and radiation properties, measuring and calibration techniques. Electroacoustic communication systems: loudspeaker installations, PA-systems, induction loop systems, speech intelligibility. Room acoustics: Assisted resonance systems etc. Sound perception: subjective evaluation of communication systems.