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# This is a makemhr HRIR definition file. It is used to define the layout and
# source data to be processed into an OpenAL Soft compatible HRTF.
#
# This definition is used to transform the SOFA packaged KEMAR HRIRs
# originally provided by Bill Gardner <billg@media.mit.edu> and Keith Martin
# <kdm@media.mit.edu> of MIT Media Laboratory.
#
# The SOFA conversion is available from:
#
# http://sofacoustics.org/data/database/mit/
#
# The original data is available from:
#
# http://sound.media.mit.edu/resources/KEMAR.html
#
# It is copyrighted 1994 by MIT Media Laboratory, and provided free of charge
# with no restrictions on use so long as the authors (above) are cited.
# Sampling rate of the HRIR data (in hertz).
rate = 44100
# The SOFA file is stereo, but the original data was mono. Channels are just
# mirrored by azimuth; so save some memory by allowing OpenAL Soft to mirror
# them at run time.
type = mono
points = 512
radius = 0.09
# The MIT set has only one field with a distance of 1.4m.
distance = 1.4
# The MIT set varies the number of azimuths for each elevation to maintain
# an average distance between them.
azimuths = 1, 12, 24, 36, 45, 56, 60, 72, 72, 72, 72, 72, 60, 56, 45, 36, 24, 12, 1
# Normally the dataset would be composed manually by listing all necessary
# 'sofa' sources with the appropriate radius, elevation, azimuth (counter-
# clockwise for SOFA files) and receiver arguments:
#
# [ 5, 0 ] = sofa (1.4, -40.0, 0.0 : 0) : "./mit_kemar_normal_pinna.sofa"
# [ 5, 1 ] = sofa (1.4, -40.0, 353.6 : 0) : "./mit_kemar_normal_pinna.sofa"
# [ 5, 2 ] = sofa (1.4, -40.0, 347.1 : 0) : "./mit_kemar_normal_pinna.sofa"
# [ 5, 3 ] = sofa (1.4, -40.0, 340.7 : 0) : "./mit_kemar_normal_pinna.sofa"
# ...
#
# If HRIR composition isn't necessary, it's easier to just use the following:
[ * ] = sofa : "./mit_kemar_normal_pinna.sofa" mono
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