p-Norm Reshaping

RIR reshaping by p-norm optimization

Some Matlab scripts and demo data for the room impulse response reshaping based on the p-norm optimization can be downloaded following the link below. In order to ensure convergence for almost any room impulse response without the need to guess an appropriate step size, we have replaced the plain gradient descent with a backtracking line search in this implementation.



  • Mazur, R., Jungmann, J. O., and Mertins, A.: On CUDA Implementation of a Multichannel Room Impulse Response Reshaping Algorithm Based on p-Norm Optimization. Proc. Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), New Paltz, USA, pp. 305-308, Oct. 2011
    BibTeX PDF


  • Mertins, A., Mei, T., and Kallinger, M.: Room Impulse Response Shortening/Reshaping with Infinity- and $p$-Norm Optimization. IEEE Trans. Audio, Speech, and Language Processing, vol. 18, no. 2, pp. 249--259, Feb. 2010
    BibTeX PDF