Audio Signal Processing & Audio Systems - Interaktive Studienpläne der TU Ilmenau

Dr.-Ing. Stephan Werner and others

Prior knowledge is needed in:

• Basics in engineering sciences like digital signal processing and fundamentals in system theory,
• Basics in acoustics and electroacoustics,
• autonomous inquiry in relevant literature and references (books, papers, etc.),
• scientific research methods

After attending the lectures, students can describe digital audio systems and technologies. They can explain changes in digital audio systems and technologies. After attending the course, the students are able to develop the design process of current audio systems. After attending the lecture, the student can summarize the knowledge about auditory perception and acoustical physical effects for the technical realization of processes, components, and systems.

After the seminar the students have deepened their knowledge out of the lectures by means of selected examples. After the event, students can correctly assess and evaluate their own achievements and those of their fellow students.

Moodle course: https://moodle.tu-ilmenau.de/course/view.php?id=125

Audio Systems Technolgy related topics:

• Analogue to digital conversion
• Dithering
• Sample Rate Conversion
• DFT / FFT basics and applications
• Digital Filters
• Audio Signal Restoration,
• Digital Amplifier and Public Address
• Digital Sound Synthesis and Manipulation
• Music Information Retrieval

Applied and Virtual Acoustics related topics:

• Wave equations (derivation and solution of the wave equation, direct sound, diffuse sound, reverberant radius, reflection, scattering, diffraction, absorption by surfaces and by air, reverberation time, impulse response)
• Room acoustics and simulation (Physical modeling of room acoustics; Mathematical modeling of room acoustics - mirror source method, raytracing, beam forming)
• Loudspeaker working principles and design
• Auralization
• Binaural synthesis (inludes basics in spatial listening and the technical realization of a synthesis system)
• Multi-channel audio system (Ambisonics, Wave Field Synthesis)
• Microphone arrays
• Building acoustics
• noise

Lecturer Notes, exercises, Computer Based Training as well as individual consultations or consultations in the group after consultation with the teachers

see also moodle course:

https://moodle2.tu-ilmenau.de/course/view.php?id=4426

• Zölzer, U.: "Digital Audio Signal Processing", Wiley, 2008.
• Kahrs, M. and Brandenburg, K.: "Applications of Digital Signal Processing to Audio and Acoustics", Kluwer Academic Publishers, 1998.
• Vary, P., Heute, U., and Hess, W.: "Digitale Sprachsignalverarbeitung", B.G. Teubner Stuttgart, 1998.
• Kuttruff H.: Akustik - Eine Einführung
• Zwicker E., Fast H.: Psychoacoustics - Facts and Models
• Jens Blauert (Autor), John S. Allen (Übersetzer): Spatial Hearing - Revised Edition: The Psychophysics of Human Sound Localization [Englisch]
• Stefan Weinzierl: Handbuch der Audiotechnik, Springer, 2008.
• Several topic specific literature is given during the lecture