METHOD, SYSTEM AND COMPUTER PROGRAM PRODUCT FOR RECORDING AND INTERPOLATION OF AMBISONIC SOUND FIELDS

摘要

A method of recording ambisonic sound fields with a spatially distributed plurality of ambisonic microphones comprising a step of recording sound signals from plurality of ambisonic microphones a step of converting recorded sound signals to ambisonic sound fields and a step of interpolation of the ambisonic sound fields according to the invention comprises a step of generating synchronizing signals for particular ambisonic microphones for synchronized recording of sound signals from plurality of ambisonic microphones and during the step of interpolation of the ambisonic sound fields it includes filtering sound signals from particular microphones with individual filters having a distance-dependent impulse response having a cut-off frequency f_c(d_m) depending on distance d_m between point of interpolation and m-th microphone applying gradual distance dependent attenuation applying re-balancing with amplification of 0th ordered ambisonic component and attenuating remaining ambisonic components. Invention further concerns recording system and computer program product.