Data Sheet

biosignalsplux
User Manual
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ASSIGN DIGITAL TRIGGER
In the ASSIGN DIGITAL TRIGGER options it is possible to select if the add-on should find
all available muscle activations or if it should find activations depending on digital input
and output signals, i.e. trigger signals.
The FIND ACTIVATIONS FROM DIGITAL ON TO DIGITAL OFF option will find all activations
within the time frames where digital inputs have been received, for example, during the
time frame a pushbutton has been being pressed.
The FIND ACTIVATIONS FROM DIGITAL ON TO … SEC will find all activations within the
specified duration after the first digital inputs received, for example, beginning at the
moment a pushbutton has been pressed.
ADVANCED OPTIONS - Filters
The advanced options allow you to change the parameters which are being used in the
activation detection algorithm to adjust the processing to your acquisition. In this option,
you can select if you want to use a lowpass, highpass or a highpass to be applied on your
signal and set the respective cutoff frequencies for the selected filter.
To use a lowpass filter, click on the LOWPASS button and enter the preferred cutoff
frequency for this filter in the CUTOFF – LOW field and enter the order of the filter in the
ORDER field.
To use a highpass filter, click on the HIGHPASS button and enter the preferred cutoff
frequency for this filter in the CUTOFF – HIGH field and enter the order of the filter in the
ORDER field.
To use a bandpass filter, click on the BANDPASS button and enter the preferred cutoff
frequency for the lowpass component of this filter in the CUTOFF – LOW field and enter
the preferred cutoff frequency for the highpass component of this filter in the CUTOFF –
HIGH. Enter the order of the filter in the ORDER field.
ADVANCED OPTIONS – Process X Channel
This option allows you to apply the statistical algorithms of this add-on to a selected
channel X within the same time intervals of another channel without any activation
dependency of channel X. The add-on will search for activations on a selected EMG
channel (click on the channel to select) and analyze the selected channel X at the same
time intervals where activations have been found in the selected EMG channel even if
there are no activations or activation triggering activities within these time intervals in
channel X (e.g. muscle is relaxed in during this interval).
With this option it is possible to compare two EMG signals within the same time intervals
without any activation dependencies.