9 Nov 2009
"Modulation spectrum is emerging as a novel sound representation which has found applications in both ASR as well as most recently in audio coding. During my visit at IDIAP, Prof. Hermansky introduced me to the topic referencing a paper by M. Vinton and L. Atlas on modulation spectrum audio coding [Vint01]. I found the paper very interesting so I decided to make available a full MATLAB implementation of all the transforms involved. I believe that this is a good start for people who want to experiment more on this new topic. Note that no entropy coding or masking thresholds are implemented as the purpose of this page is to explore the modulation spectrum representation."