A binaural spatialization engine is software that employs advanced algorithms, including Head-Related Transfer Function (HRTF) processing, to precisely position audio sources within a virtual soundstage, simulating the perception of direction, distance and movement of sound.
Unlike a binaural panner, which focuses on the precise placement and movement of audio sources within a stereo field, a binaural spatialization engine offers a more comprehensive set of tools and functionality. It includes features such as HRTF-based spatial rendering, considering factors such as interaural time differences (ITD) and interaural level differences (ILD) as well as room simulation, distance modeling, and reverberation.
Furthermore, a binaural spatialization engine must be distinguished from a spatial audio processor. While a spatial audio processor encompasses various techniques and algorithms for spatialization, including binaural rendering, panning, object-based audio processing, and reverberation, a binaural spatialization engine focuses on creating binaural listening experiences.