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•
Avoid radio interference. Take the normal precautions in operating wireless
systems: use different frequencies for each tracker and avoid using other radio
equipment in those frequencies. To ensure that the tracker radio channels do not
receive significant noise signals you may use the tracker calibration screen with the
tracker OFF. If there is some interference you may try to take the receiver as close
as possible to the stage and apart from radio generators such as computer
monitors. This makes the signal to noise ratio bigger and the system can operate
despite the noise. If the problem persists you may have to change the tracker for a
more suitable frequency. If you have a multi-tracker system and one of your
receivers is noisy it may affect the tracking in the other trackers. A solution to this
is to keep its tracker ON always so that the signal coming from the tracker is
stronger and steadier than the background radio noise.
•
Try a smaller sampling rate. If the system seems to be working but no tracking is
occurring and the position coordinates are stuck at zero or some other numbers, it
may be because the sampling rate is too fast for the room or the speaker geometry.
Too high a sampling rate will produce echoes that jam the operation of the MLD,
resulting in either no tracking or instances of momentary tracking and then
"freezing" of the position. Users should refer to chapter 8 for a more extended
discussion of sampling rate issues.
•
Make sure the tracker battery is still functioning. Also, check that the battery is
making tight contact with the metal contact strips —9V batteries from different
manufacturers have slightly different sizes and sometimes the strips bend inward.
Why are the directory paths not showing the full name of my directories?
•
The MLD software is a DOS program and so it is limited to eight character names
for files and directories. Windows 95 clips long names with a ~ sign. For
convenience, try to keep your paths within the DOS restrictions.
MLD is not sending or receiving MIDI
•
Verify that you have enabled MIDI in the MLD "set-up" screen.
•
Check your cable connections and ensure that the MIDI card is properly installed.
•
Check that your MIDI card is addressed properly, this might be a problem if you
have two MIDI cards in the PC and the software's default address ($0330)
corresponds to the other card.
MLD manual 1.1
Page 97
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