Empatica E4 Signal Element

Modified on 2018/09/04 22:54 by Administrator Categorized as Elements, Signal Acquisition
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== Summary ==
{s:Element Info Panel
| title=Empatica E4 Buffer
| category=Signal Acquisition
| icon=[image|Element Icon|{UP(Empatica-Buffer-Element)}Empatica-E4-Buffer-Element-Icon.png]
| author= OkazoLab
| addin= Signal Processing
| scope= Experiment
| usage= Snippets
| ownsnippets= None
}
== Properties ==
{|
|-
! Name
! Description                              
! Constraints
! Type
! On<br/>runtime<br/>change
|-
| colspan="5" bgcolor="#AADDDDD" | BLE Server
|-
| Server IP Address        
| Defines the IP address of PC running Empatica BLE Server        
| {s:atNormal}        
| String        
|  
|-
| Server Port        
| Defines the port number of Empatica BLE Server        
| {s:atDesign}        
| Int32        
|  
|-
| Device ID        
| Defines the hardware device connected via Empatica BLE Server        
| {s:atDesign}        
| String        
|  
|-
| colspan="5" bgcolor="#AADDDDD" | Signal Generator
|-
| Signal Source        
| Defines a source for the signal. The emulated rhythmes can be used for offline validation of the chosen analysis settings        
| {s:atDesign}        
| enEmul..        
|  
|-
| Emulated Sampling Rate        
| Defines the emulation sampling rate (samples per second), when data is generated or streamed from a file.        
| {s:atDesign}        
| Double        
|  
|-
| Primary Frequency        
| Defines the frequency of the primary rhythm in the generated signal, in Hz. Assign the zero to exclude the primary frequency from the generated signal.        
| {s:atDesign}        
| Double        
|  
|-
| Secondary Frequency        
| Defines the frequency of the secondary rhythm in the generated signal, in Hz. The secondary frequency magnitude is a half of the primary frequency magnitude. Assign the zero to exclude the secondary frequency from the generated signal.        
| {s:atDesign}        
| Double        
|  
|-
| Noise Level        
| Defines the noise level (in % to the norm magnitude of the primary frequency). The noise is added to the generated signal. Assign the zero the exclude the noise from the generated signal.        
| {s:atDesign}        
| Double        
|  
|-
| External Datafile        
| Opens the dialog for selecting a data file containing a stream of double numbers representing a signal. If a file name without a path is defined, the data file will be picked up in the location of the experiment file.        
| {s:atDesign}        
| String        
|  
|-
| colspan="5" bgcolor="#AADDDDD" | Channel Configuration
|-
| Selected Channels        
| Defines what signal channels are selected for acquisition within EventIDE. Selected channels are registered in the EventIDE signal pool at runtime and become available for the signal analysis elements.        
| {s:atDesign}        
| IList        
|  
|-
| Selected Channel Count        
| Indicates how many signal channels are currently selected for acquisition        
| {s:atStatus}        
| Int32        
|  
|-
| Total Channel Count        
| Indicates how many signal channels are available for acquisition in the total        
| {s:atStatus}        
| Int32        
|  
|-
| Buffer Size        
| Defines the size (in samples) of a circular buffer that stores incoming signal data.        
| {s:atDesign}        
| Int32        
|  
|-
| colspan="5" bgcolor="#AADDDDD" | Runtime Control
|-
| Reset Signals Now        
| Runtime commands that resets the signal buffers and data acquisition        
| {s:atRuntimeAction}        
| Boolean        
|  
|-
| colspan="5" bgcolor="#AADDDDD" | Control
|-
| Is Enabled        
| If set to false the element is completely omitted when the experiment is run        
| {s:atDesign}        
| Boolean        
|  
|-
| Title        
| Title of the element        
| {s:atDesign}        
| String        
|  
|-            
|}
== ==
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'''Empatica E4 Signal Element''' allows reading and buffering online data of the Empatica sensors, e.g. E4. The element requires the Empatica BLE Server running on the same/network computer.<br><br>
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Empatica E4 Signal Element
