Use the Filemenu to start or stop a recording. You need to enable the ADC-box first.
Use the ADCboxmenu to start or stop the ADC-box or to set the COMport.
After starting the ADC-box, the signaldialog will appear.
Be aware that with OpenSuse you need to be a member of the group uucp.
Start Yast, go to Security and Users, go to User and Group Management, select the user,
click on Edit, click on the tab Details, check the group uucp and click on OK.
With Ubuntu you need to be a member of the group dialout.
Without this setting, you will get the message "unable to open the comport".
Use the Signalsmenu to add or remove signals. If you want to remove only one particular signal,
leftclick on the signallabel of the signal you want to remove. A small dialog will appear and gives
you the possibility to remove that particular signal from the screen. See also signaldialog.
Use the Displaymenu to choose the pagetime (the amount of seconds that must be shown on the screen).
Use the Amplitudemenu to adjust the amplitude of all signals on the screen.
If you want to adjust the amplitude of one particular signal, use Signalproperties.
The signallabel is the name of the signal which is printed on the screen at the start of the trace.
This little piece of text has some "hidden" functions. When you leftclick on it, the Signalproperties
dialog will be opened. You can also drag this label with the left or right mousebutton to change
the offset or amplitude of the signal, see also Adjusting the position and size of the signals.
Use the signaldialog to add one or more signals to the screen. Go to Signals -> Add.
On top you will see a list of opened files.
Select (highlight) the file from which you want to add signals. At the left part of the dialog you see a list of
all the signals which are in the selected file. Select one or more signals and click on the "Add signals"
button. Now you will see the selected signals on the screen. You can add more signals afterwards,
just go to Signals -> Add.
When you want to make a combination (subtraction) of two or more signals, do as follows. Open the signalsdialog.
Select the file from which you want to add signals. In this example we choose an EEG file which contains
the signals "P3" and "C3" and we want to subtract "C3" from "P3".
- Select (highlight) the signal "P3".
- Click on the "Add" button.
- Select (highlight) the signal "C3".
- Click on the "Subtract" button.
- Click on the "Display Combination" button.
- The result of "P3" minus "C3" will appear on the screen.
Now you can add more combinations or simply close the dialog.
note: It is only possible to make combinations with signals who:
- have the same physical dimension (e.g. uV)
- have the same sensitivity (e.g. uV/bit)
You can view or adjust the properties of a specific signal by leftclicking on the signallabel.
A small dialog will be opened and let you change the amplitude and color.
You can also remove filters (if any) or remove the signal from the screen.
Another way to view/change the properties of a signal is to go to Signals -> Properties.
This will show you a list of all signals which are on the screen. Simply click on the
signal of interest.
Leftclick on the signallabel and move the mousepointer up or down while keeping the
left mousebutton pressed. This will move the signal up or down on the screen i.e. it
changes the offset of the signal.
Rightclick on the signallabel and move the mousepointer up or down while keeping the
right mousebutton pressed. This will increase or decrease the amplitude (size) of
the signal on the screen.
Use the filtermenu to add or remove filters. There are two types available, highpass or lowpass.
These filters emulate first order analoge filters (RC-filters) with a 6dB/octave slope. After selecting
a low- or highpass filtertype, select the frequency or time constant and select one or more signals
to apply.
Montages can be used to store information about which signals should be shown on
the screen, what combinations (subtractions) should be made and other properties
like filters, amplitude and color. After starting the ADC-box and adding the signals
you want (and/or all the combinations/subtractions) and you have adjusted amplitude
and colors and/or filters, you can save them as a montage.
Go to Montage -> Save. A dialog will be opened where you can choose a directory
and filename to store your montage.
Next time when you start the ADC-box, you can load a montage via Montage -> Load.
You can view the properties of a montage via Montage -> View saved montages or
Montage -> View this montage.
note:
It is important that the names (labels) of the signals are correct when you use a montage.
Go to Tools -> Options to change the colors like you prefer.
Go to Tools -> Options -> ADC-box to change the ADC-settings.
You can set label names (signal/channel names), the physical dimensions
(uV, mV or whatever you want) and the values for physical maximum.
If you are using a pre-amplifier with a gain of 20, you have to set a
value of 3000 / 20 = 150 mV or 150000 uV in case you want to measure EEG.
Go to Tools -> Options -> Calibration to calibrate your screen.
This will achieve that the amplitude expressed in units/cm will have
the correct value.
You can add annotations during a recording. Get the annotationwindow by clicking on the menubar Annotations -> Show.
At the right side of the annotationwindow there is a box where you can type a description of the event.
When you are finished writing, click on manual. The annotation will be saved into the file using the time of clicking
on the manualbutton as the onset time for the event.
You can also use predefined annotations. Go to Annotations -> Add/Remove in the menubar.
Click on the Add button. A new annotation with the text "New annotation will" appear. Dubbel-click on the new text to
edit the text. After you are finished click on the Apply button. The new annotation will appear in the annotationswindow
and is ready to use, just click on it.
Q. How do I add signals to the screen?
A. Use the signalsdialog.
Q. I added signals but some (or all) of them are not visible on the screen.
A. This can happen because of DC-offsets. Add a highpassfilter for every signal or
go to Amplitude -> Fit to pane.
Q. How can I change the amplitude of a signal?
A. Leftclick on the signallabel of that signal. A small dialog will appear. There is a
spinbox that will let you change the amplitude of the signal.
Another way is to rightclick on the signallabel and move the mousepointer up or down
while keeping the right mousebutton pressed. This will increase or decrease the amplitude
of the signal on the screen.
Q. What are the system requirements?
A. The program has been tested on an Intel Pentium 4 CPU running at 2.6 GHz and 1 GB RAM
Q. Which operatingsystems are supported?
A. Linux and windows xp.
Q. Which license is used for the program?
A. The GNU General Public License version 2. For more info go to Help -> About.
Q. I think I found a bug. Where do I report it?
A. First check if you are using the latest version of EDFrecorder.
If the bug persists, send an email to teuniz@gmail.com