234 Chapter 9
that follows the statistical behavior of sound in a
bounded space. The technique yields a parametric room
impulse response (PRIR) in which a combination of
real-time and nonreal-time processes performs a model-Figure 9-24. Auralization with a binaural impulse response and speaker presentation.Figure 9-25. Auralization with a HRTF binaural impulse response and headphone presentation.Reflectogram at 16 kHzReflectogram at 2 kHzReflectogram at 250 Hz
Reflectogram at 125 HzReflectogram at 500 HzReflectogram at 1 kHzImpulse response reflectograms
dBTimeTimedBLeft plane
impulse
responseConvolution engine
(software and/or
hardware)Left playback
system
(loudspeaker)Anechoic
music sampleRight playback
system
(loudspeaker)Right plane
impulse
response
Convolution engine
(software and/or
hardware)Reflectogram at 16 kHzReflectogram at 2 kHz
Reflectogram at 1 kHz
Reflectogram at 500 Hz
Reflectogram at 250 Hz
Reflectogram at 125 HzdBImpulse response reflectogramsTimeTimeLeft plane
impulse
responseAnechoic
music sampleLeft HRTFConvolution engine
(software and/or
hardware)Left channel
headphonesRight channel
headphonesConvolution engine
(software and/or
hardware)Right plane
impulse
responsedBRight HRTF