Hi, Please excuse the spam, but I thought that could be of interest to some people in the list.
My name is Archontis Politis, I am a doctoral student in the spatial sound research group of Aalto University in Finland, working on parametric spatial sound recording/reproduction techniques, and combinations with non-parametric/ambisonic approaches. I’m wrapping up my thesis and in the meantime I tidied up some Matlab/Octave code I had, and pushed it out publicly. These include: - A compact Higher-order ambisonics library that implements a few recent decoding approaches, along with performance evaluation in terms of velocity and energy vectors - A Spherical Harmonic Transform library, which includes rotations, convolutions and coupling coefficients of spherical functions, for both real and complex SHs. - An amplitude panning library that implement VBAP, VBIP, VBAP & VBIP-based spreading, and some variants - An array simulator for arbitrary directional microphones and arrays of microphone on and around a rigid scatterer (spherical or cylindrical) The HOA library is only for 3D layouts at the moment, and it returns decoding matrices for two classic decoding approaches, plus the recent energy-preserving decoding by (Zotter, Pomberger, Noisterning, 2012), the All-round ambisonic decoding by (Zotter and Frank, 2012), and the Constant Angular Spread Decoding by (Epain, Jin and Zotter, 2014). It also includes rotations of recordings, max-rE weighting and frequency-dependent decoding as options. The array simulator can be used to obtain impulse/frequency responses of arrays that deliver HOA signals, and study the effect of the array to their frequency response/aliasing etc. These can be found at: https://github.com/polarch/ with respective showcase/documentation found at: http://research.spa.aalto.fi/projects/sht-lib/sht.html http://research.spa.aalto.fi/projects/vbap-lib/vbap.html http://research.spa.aalto.fi/projects/ambi-lib/ambi.html http://research.spa.aalto.fi/projects/arraysim-lib/arraysim.html I hope something here could prove useful to you. In case you use them, any feedback, corrections, etc. is mostly welcome! Best regards, Archontis Politis Doctoral Researcher Department of Signal Processing and Acoustics Aalto University, Finland -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20151126/9c95e2a6/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
