Marton Marschall wins the Student Technical Paper Award at the Audio Engineering Society’s 132 Convention.
How do you bring a crowded restaurant or a busy intersection into the lab? Marton Marschall and colleagues at CAHR have been developing a microphone array to record and reproduce realistic acoustic scenes around the listener. A paper describing part of this work received the Student Technical Paper Award of the Audio Engineering Society’s 132nd Convention, and will be presented on April 28th in Budapest, Hungary (http://www.aes.org/events/132/).
Spherical microphone arrays can be used to capture and reproduce the spatial characteristics of acoustic scenes. A mixed-order Ambisonics (MOA) approach was recently proposed to improve the horizontal spatial resolution of microphone arrays with a given number of transducers. In this paper, the performance and robustness of an MOA array to variations in microphone characteristics as well as self-noise was investigated. Two array processing strategies were evaluated. Results showed that the expected performance benefits of MOA are achieved at mid to high frequencies, and that robustness to various errors was similar to that of HOA arrays with both strategies. The approach based on minimizing the error of the reproduced spherical harmonic functions showed better performance at high frequencies for the MOA layout.
P15-3 “Robustness of a mixed-order Ambisonics microphone array for sound field reproduction”
Marton Marschall, Sylvain Favrot and Jörg Buchholz, Convention Paper 8645
Please check http://www.aes.org/events/132/press/?ID=149.