Enhancing the binaural synthesis from spherical microphone array recordings by using virtual microphones

摘要

Binaural synthesis from rigid spherical microphone arrays requires high spatial resolutions. Physically adding microphones to available arrays, however, is not always feasible. In environments such as conference rooms or concert halls, prior knowledge about the source positions allows predicting microphone signals by relying upon a physical model for the acoustically rigid sphere. Recently, we have used this model to formulate and evaluate a method that enhances spatial sound recordings by adding virtual microphones to the array. In this study, we apply this method to enhance the spatial accuracy of binaural synthesis when it is performed in anechoic and reverberant conditions.