TDT RZ2, Manual, Page: 632 / 736

17-14 System 3
HTI3 Head Tracker Interface
The PulseTrain2 component sends out a pulse every 60 samples. The output from
the PulseTrain2 is sent to the Trigger line on a latch. Therefore the output from the
latch is updated once every 60 samples. This generates an updated output that more
closely matches the data transfer rate of the motion tracker. The output can then be
sent to a head related transfer function (HRTF) coefficient generator (see “Using
the HTI3 with HRTF Filters” on page 17-15).
Another way to use the decimated signal would be to send it to a Serial Buffer
input. In this case the values are stored once every 60 samples. If you were using
this with OpenEx this would be the primary way to save the data set.
PulseTrain2
nPer=60
nPulse=-1
Enab=Yes
Rst=Run
[1:1,0]
PCount=0
PLate=0
decimate
ScaleAdd
SF=180
Shft=0
[1:9,0]
Azm1_Deg chan1
ScaleAdd
SF=180
Shft=0
[1:12,0]
Elv 1_Deg chan2
ScaleAdd
SF=180
Shft=0
[1:6,0]
Roll1_Deg chan3
Latch
Trg=0
[1:10,0]
Latch
Trg=0
[1:13,0]
Latch
Trg=0
[1:7,0]
decimate
SerStore
Size=1000
Rst=0
WrEnab=1
[1:10,0]
Index=0
{>Data}
Index
Azimuth
decimate
Azm1_Deg
Elevation
decimate
Elv 1_Deg
SerStore
Size=1000
Rst=0
WrEnab=1
[1:14,0]
Index=0
{>Data}
Roll
decimate
Roll1_Deg
SerStore
Size=1000
Rst=0
WrEnab=1
[1:6,0]
Index=0
{>Data}