Loadbang: Spectral analysis and processing

BEK 04.12.2009 13.0004.12.2009 15.00


In this session we’ll look into the theory behind specral analysis and processing, the use of windowing and overlapping, and study some applications for real-time sound analysis and processing.

In addition we’ll look into non-real-time analysis and processing in the frequency domain using programs such as Spear and AudioSculpt.

Online resources

Richard Dudas and Cort Lippe. The Phase Vocoder – Part I

Richard Dudas and Cort Lippe. The Phase Vocoder – Part II

Smith, J.O. Mathematics of the Discrete Fourier Transform (DFT) with Audio Applications, Second Edition,, 2007, online book.

Miller Puckette: The Theory and Technique of Electronic Music, Chapter 9: Fourier analysis and resynthesis,, online book.

MSP Tutorial 25 – Using the FFT

MSP Tutorial 26 – Frequency Domain Signal Processing with pfft~

Further reading

Gareth Loy. Musicmathics. The Mathematical Foundations of Music. Volume 2. Chapter 2 & 3. The MIT Press, Cambridge, Massachusetts, 2007.

Curtis Roads. The Computer Music Tutorial, Appenxix: Fourier Analysis, Pp. 1071-1112. The MIT Press, Cambridge, Massachusetts, 1996.

About loadbang

loadbang is a series or regular meetings for artists and students working on real-time based prosessing of media using software such as Max:“”, SuperCollider and Pd. We will meet twice a month to discuss a number of advanced topics. The participants will be encouraged to propose topics for upcomming meetings as well as to present and discuss their own projects, so that we can focus not only on technical issues but also the artitsic use of the software.

loadbang is a collaboration between BEK and Bergen National Academy of the Arts, with support from the Norwegian Art Council and The Municipality of Bergen. Meetings take place at BEK, C. Sundtsgt. 55, top floor.