Viktor Gunnarsson

Dirac Research

This paper presents a comprehensive model for ear-signal level coloration in stereo amplitude panning, enabling the calculation of monaural correction filters that equalize the average coloration over a small area around the sweet spot. The model takes into account the speaker setup geometry, listener Head-Related Transfer-Functions (HRTFs), the em...

Accurate binaural rendering requires accurate reproduction of binaural signals at the eardrum, which in turn requires adequate binaural technology. We propose a method to measure head-related & headphone transfer functions with a two-microphone array in the ear canal. By implementing a cardioid directional pattern, the forward and reverse propagati...

Pre-processing of HRTF phase has proved useful to improve binaural rendering of order-limited spherical harmonics (SH) signals. The adjustment is typically applied at high frequencies and allows to reduce magnitude errors for directional sound field components. This article proposes a practical method for HRTF phase pre-processing using linear phas...

Binaural room auralization involves Binaural Room Impulse Responses (BRIRs). Dynamic binaural synthesis (i.e., head-tracked presentation) requires BRIRs for multiple head poses. Artificial heads can be used to measure BRIRs, but BRIR modeling from microphone array room impulse responses (RIRs) is becoming popular since personalized BRIRs can be obt...