The characteristics of human
hearing have been measured and converted into head-related
transfer functions (HRTF) that represent the effects the head,
torso, shoulders and ears have on the sound that reaches the
listeners ear drums.
The discrete pulses of the impulse response file will be convolved
with the right and left ear transfer functions using FFT (Fast
Fourier Transform) to produce the binaural signal that will
be used to convolve the dry (uncolored reference) audio signal
and produce the auralization.