Method and device for processing hrtf filters

Abstract

Embodiments of the invention relate to a method and device for adaptive Head Related Transfer Function (HRTF) individualization for binaural rendering through headphones, earphones or crosstalk-cancelled speakers. The Adaptive HRTF individualizer (AHI) can simplify the complicated problem of custom tailoring an HRTF to a user via a GUI (graphical user interface), and can incorporate a single controller (e.g. a slider) that controls the selection of filters that allow the listener to virtualize sound sources at desired locations through any binaural rendering system. The slider allows cycling through processed HRTFs that are a composite of deconstructed measured filters with reconstructed cues such as interaural time difference (ITD) and interaural level difference (ILD). The deconstructed filters are analyzed and pre-processed enabling a smooth interpolation of the filters in the time domain prior to the addition or reconstruction of cues into the filter itself. Expanding this procedure for a single location into multiple locations enables a customized and accurate listening experience for multichannel content virtualized through any binaural rendering system. This can be done for a multitude of speaker locations to customize and render any surround sound content.