Lecture "Digital Audio Effects"

Basic Information

Lecturers:   Klaus Linhard  (lecture and exercise)
Room:   Builing F, room F-SR-II (in the first week), building F, room F-SR-III (in the second week), and PC lab in building B (in the second week).
Language:   English
Target group:   Students in electrical engineering and computer engineering
Prerequisites:   Previous knowledge about digital signal processing and linear systems. Some experience with MATLAB is useful, but not mandatory.
Contents:  

Students attending this lecture should be able to implement efficient and robust signal processing structures. Knowledge about moving from the analog to the digital domain and vice versa including the involved effects (and trap doors) should be acquired. Also differences (advantages and disadvantages) between time and frequency domain approaches should be learnt.

Topic overview:

  • Digital signal processing - summary
    • Ordered sequences of numbers
    • Difference equations
    • Linear systems
  • Frequency-domain processing - summary
    • Discrete Fourier transform
    • Fast convolution
    • Transfer functions and spectra
  • Introduction to MATLAB and motivation
  • Digital filters
    •  A,B,C,R468 weighting filters
    • Equalizer
    • Sampling rate conversion
  • Dynamic compression
    • Fullband
    • Multiband
    • De-esser
  • Room acoustics and reverberation
    • Impulse response
    • Reverberation
References:  

Zölzer, U.: Digital Audio Effects, John Wiley & Sons, 2011
Zölzer, U.: Digital Audio Signal Processing, John Wiley & Sons, 2008
Zölzer, U.: Digitale Audiosignalverarbeitung, Vieweg+Teubner Verlag, 2005
Smith, J.O.: Introduction to Digital Filters: with Audio Applications, W3K Publishing, 2007
Smith, J.O.: Mathematics of the Discrete Fourier Transform (DFT): with audio Applications, De Gruyter Saur, 2013
Smith, J.O.: Spectral Audio Signal Processing, W3K Publishing, 2011
Dickreiter, M.: Handbuch der Tontechnik, De Gruyter Saur, 2013

Dates

Below you can find the schedule of the lecture and exercises of the blockcourse.

Date   Room   Time   Topic
07.08.2017   F-SR-II   08:30 h - 11:00   Lecture 1  
07.08.2017   F-SR-II   13:30 h - 16:00   Lecture 2  
08.08.2017   F-SR-II   08:30 h - 11:00   Lecture 3  
08.08.2017   F-SR-II   13:30 h - 16:00   Lecture 4  
09.08.2017   F-SR-II   08:30 h - 11:00   Lecture 5  
09.08.2017   F-SR-II   13:30 h - 16:00   Lecture 6  
16.08.2017   F-SR-III   08:30 h - 11:00   Lecture 7  
16.08.2017   F-SR-III   13:30 h - 16:00   Lecture 8  
17.08.2017   F-SR-III / PC-lab building B   08:30 h - 11:00   Exercise 1  
17.08.2017   F-SR-III / PC-lab building B   13:30 h - 16:00   Exercise 2  
18.08.2017   F-SR-III / PC-lab building B   08:30 h - 11:00   Exercise 3  
18.08.2017   F-SR-III / PC-lab building B   13:30 h - 16:00   Exercise 4  

 

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Exams

Below is the list of students with their exam dates. If you do not have a date for the exam yet please write an e-mail with your matriculation number to This email address is being protected from spambots. You need JavaScript enabled to view it. to request a date.

Date   Time   Students (matriculation numbers)   Assessor
24.08.2017   08:00 h   1008366, 1018104   Christin Baasch
24.08.2017   09:00 h   1010613, 1012825, 1010623   Christin Baasch
24.08.2017   10:30 h   1006415   Tobias Hübschen
24.08.2017   11:00 h   6023   Tobias Hübschen
24.08.2017   11:30 h   1113778   Tobias Hübschen
24.08.2017   12:30 h   1029504   Tobias Hübschen
24.08.2017   13:00 h   1021195   Tobias Hübschen
24.08.2017   13:30 h   1015927   Tobias Hübschen
14.09.2017   09:00 h   1006153, 1006194   Marco Gimm
14.09.2017   10:00 h   1006433   Marco Gimm
14.09.2017   10:30 h   1029545   Marco Gimm
03.11.2017   09:00 h   1015888   Marco Gimm
03.11.2017   09:30 h   1016013   Marco Gimm
03.11.2017   10:00 h   1001083   Marco Gimm

 

Website News

03.12.2017: Added pictures from our Sylt meeting.

01.10.2017: Started with a Tips and Tricks section for KiRAT.

01.10.2017: Talks from Jonas Sauter (Nuance) and Vasudev Kandade Rajan (Harman/Samsung) added.

13.08.2017: New Gas e.V. sections (e.g. pictures or prices) added.

Recent Publications

J. Reermann, P. Durdaut, S. Salzer, T. Demming, A. Piorra, E. Quandt, N. Frey, M. Höft, and G. Schmidt: Evaluation of Magnetoelectric Sensor Systems for Cardiological Applications, Measurement (Elsevier), ISSN 0263-2241, https://doi.org/­10.1016/­j.measurement.2017.09.047, 2017

S. Graf, T. Herbig, M. Buck, G. Schmidt: Low-Complexity Pitch Estimation Based on Phase Differences Between Low-Resolution Spectra, Proc. Interspeech, pp. 2316 -2320, 2017

Contact

Prof. Dr.-Ing. Gerhard Schmidt

E-Mail: gus@tf.uni-kiel.de

Christian-Albrechts-Universität zu Kiel
Faculty of Engineering
Institute for Electrical Engineering and Information Engineering
Digital Signal Processing and System Theory

Kaiserstr. 2
24143 Kiel, Germany

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Jugend Forscht

On November 24th, one of our DSS team members, Owe Wisch, took part in the "Jugend forscht Perspektivforum" at the CAU. Thirty young students from the "Jugend forscht" project came to Kiel and participated in three different workshops focusing on career paths in maritime climate protection. Owe Wisch from our chair lead one of the workshops and presented his research topics, beamforming ...


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