CHAPTER 2
Operation
13
On the data disk, files with the file extension bkm and bkt hold data in a format that is optimised
for use with various Brüel & Kjær software products. These files can be viewed by using programs
provided by Microsoft
®
, for example, Notepad.
Table 2.2
Details of the files supplied on data disk with Type 5128-C-110 (with left and right ear simulators, but without
a mouth simulator) and Type 5128-C-111 (with left and right ear simulators and mouth simulator)
File Name
Contents
Freq. Range
Comments
Diffuse Field Response.txt Listener Diffuse-field
Frequency Response, DFR
20 Hz – 20 kHz Typical data
LFR L, EL+0, AZ 0-360.txt
LFR L, EL+15, AZ 0-360.txt
LFR L, EL+30, AZ 0-360.txt
LFR L, EL+45, AZ 0-360.txt
LFR L, EL+60, AZ 0-360.txt
LFR L, EL+75, AZ 0-360.txt
LFR L, EL+90, AZ 0-360.txt
Left ear 0
elevation and
0
–360
azimuth in 15
steps
Left ear +15
elevation and
0
–360
azimuth in 15
steps
Left ear +30
elevation and
0
–360
azimuth in 15
steps
Left ear +45
elevation and
0
–360
azimuth in 15
steps
Left ear +60
elevation and
0
–360
azimuth in 15
steps
Left ear +75
elevation and
0
–360
azimuth in 15
steps
Left ear +90
elevation at 0
LFR L, EL–15, AZ 0-360.txt
LFR L, EL–30, AZ 0-360.txt
LFR L, EL–45, AZ 0-360.txt
LFR L, EL–60, AZ 0-360.txt
LFR L, EL–75, AZ 0-360.txt
LFR L, EL–90, AZ 0-360.txt
Left ear –15
elevation and
0
–360
azimuth in 15
steps
Left ear –30
elevation and
0
–360
azimuth in 15
steps
Left ear –45
elevation and
0
–360
azimuth in 15
steps
Left ear –60
elevation and
0
–360
azimuth in 15
steps
Left ear –75
elevation and
0
–360
azimuth in 15
steps
Left ear –90
elevation at 0
20 Hz – 20 kHz
Typical LFR measured at
elevation angles from 0
to ±90
in 15
steps, and 0
–360
azimuth
in 15
steps.
See Fig.2.9 and Fig.2.10.
The files contain all azimuth
angles for each elevation for left
and right ear respectively.
LFR R, EL+0, AZ 0-360.txt
LFR R, EL+15, AZ 0-360.txt
LFR R, EL+30, AZ 0-360.txt
LFR R, EL+45, AZ 0-360.txt
LFR R, EL+60, AZ 0-360.txt
LFR R, EL+75, AZ 0-360.txt
LFR R, EL+90, AZ 0-360.txt
Right ear 0
elevation and
0
–360
azimuth in 15
steps
Right ear +15
elevation and
0
–360
azimuth in 15
steps
Right ear +30
elevation and
0
–360
azimuth in 15
steps
Right ear +45
elevation and
0
–360
azimuth in 15
steps
Right ear +60
elevation and
0
–360
azimuth in 15
steps
Right ear +75
elevation and
0
–360
azimuth in 15
steps
Right ear +90
elevation at 0
Summary of Contents for HATS 4606
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