Spatial Sound for Computer Games and Virtual Reality - Game Sound Technology and Player Interaction: Concepts and Developments - page 312

Sun Microsystems. (2010). Java ME API . Re-
trieved February 4, 2010, from http://java.sun.
com/javame/reference/apis.jsp.

Fast Convolution: Convolution is an operation
applied to two signals, the most common opera-
tion being multiplication. A Fast Convolution is
an optimised circular convolution, typically used
in conjunction with a Fast Fourier Transform.
Free-Field: An open space/environment which
does not interact with the sound source (as opposed
to 'room interaction' in a closed space.
Head Tracking: The tracking of position and
orientation of head movement by an external sen-
sor in VR or computer games.
HRTF: Head Related Tranfer Function.
Occlusion: An obstacle that blocks the effec-
tive transmission of sound by absorbing energy,
or reflecting sound waves.

Väänänen, R. (1998). Verification model of ad-
vanced BIFS (systems VM 4.0 subpart 2). ISO/
IEC JTCI/SC29/WG11.

Vorländer, M. (2008). Auralization—Funda-
mentals of acoustics, modelling, simulation,
algorithms and acoustic virtual reality (1st ed.).
Berlin: Springer.

KEY tErMs AND DEFINItIONs

API (Application Programming Interface):
A mechanism in software engineering to allow
two separate pieces of software to integrate or
interface, for instance a library of functionality
being integrated into an application.
Doppler Effect: The apparent shift in pitch/
frequency of a sound due to motion parallax.

ENDNOtE

1

Individualization refers to a listening expe-
rience that is tailored to and unique to the
individual listener.