In order to view data within the SuperVision application you will need to be running the Emteq SDK to process and record data from the emteqPRO mask. This can be acheived by building a Unity app with our Emteq SDK or by downloading one of our pre-baked demo apps that you can use to get started quickly and reference in future.
In order to have successful data collection there needs to be good contact with the sensors. Some tips on best to achieve this can be found here.
The mask, shown below this list, contains 7 electromyochartic (EMG) sensors. These namely are:
The zygomaticus and orbicularis sensors are part of adjustable sides which can be inserted into the mask. Ensuring the right size-side insert for your face will greatly improve the sensor signal.
The orbicularis sensors should be placed as close to the end of the eye as possible, as long as they are not affecting normal eye movements or comfort. Note, on some faces using the wide inserts may mean the orbicularis sensors placed further away from the eye and thus give weaker signal.
The SuperVision app uses a traffic light system to help provide a quick indication of sensor contact. The mask icon displayed in the application shows sensors in three different states: grey (no connection), orange (bad connection) and green (good connection). If you are struggling to find a good connection with the sensors after readjusting you can do a few things to help.
After you fit the device, try leaving it on the face for a brief period of time before starting any data collection. We recommend 15-20 seconds. This duration may vary depending on the conditions of the recording. After this step, check the mask diagram on the SuperVision app, if all sensors are green then you have good contact. Generally sensor conductivity may improve over time.
Green sensors indicate good connection with the skin.
Orange sensors indicate low/poor skin contact.
Grey sensors indicate no contact with the skin.
See all possible colour indications in the above image.
To achieve stable contact with the skin, try repositioning the device, tightening the head strap, or changing the sensor inserts (wide or narrow inserts for the eye sensors).
It is important to ensure all sensors have good contact with the skin before recording any data.
Please check the sensor placement (see The EMG Sensors). If any of the sensors are still not green please try the following steps:
If any sensors are not touching or showing as orange, the tab will say ‘contact status poor' and the mask needs readjusting. Once all sensors have good contact with the skin, the tab will show as ‘status good', then you are able to continue with data collection.
When monitoring active recording sessions this is the main display you will use for reading the real-time data. It contains information on all sensors organised into charts which can be customised to fit your needs.
Once connected to the emteqPRO device, you will see live signals coming through from each of the sensors.
To see the signals, click the second tab on the left with the chart icon.
You are able to view EMG, PPG, IMU accelerometer, magnetometer, gyroscope and HR in beats per minute (BPM), the charts are shown below.
On each chart you are able to select which channels you want to view and the position of the chart on the screen.
You are also able to edit the charts using the configure button in the top right corner. This feature allows you to select which channels you want to view, change the amplitude range and apply filters to the signals.
From within each chart configration you may use the ‘Range Slider' to manually control how the data for each sensor is displayed within the charts. With manual input fields for min and max values and a slider allowing for easy changes and consistent views between the charts.
Certain charts can be viewed as either a Line Chart of Bar Chart, as shown below. Bar Chart provides an alternative, instant view on real-time channel data.
Chart duplication controls have been added, allowing for much greater flexibility of the configuration. These will appear on top left as new options under the selected channel. For each duplicate chart, you can control the appearance, the type of data or channels visualised, without affecting the remaining graphs. Settings configured per chart are saved between uses.
Some examples of how this can be used are showing the left and right sides of the face in two charts to compare channel readings side by side. Or you may have a chart that shows a narrow range of values giving a very granular view of micro-expressions, while also having a chart with a wider range for a more general view. Under the Configure menu you will find the option to create, move and close additional charts. You may create as many charts as there are plots in a channel. EMG for example has 7 pairs of sensors, so you can create a total of 7 charts.
To improve performance on a lower end machine it is recommended to disable any chart sensor data you are not currently using, for example removing IMU or Magnetometer, or removing Corrugator from EMG if only the two sides of the face are required.
There is also a chart for viewing the event markers the user is experiencing in real time. These events are triggered from the emteq SDK app, but can also be triggered from SuperVision such as session recording below.
The connection icon on the top right of the SuperVision shows the connection with the emteqPRO Mask. If connection is lost, and the mask is not recognised by the SuperVision, then the icon will turn from blue to red, as shown here.
The Data Insights section allows you to upload your data to the cloud where the data to be processed and returned as a batch of standard CSV files in a compressed zip format. You can access the Data Insights section at any time from the tab on the left of the SuperVision app, even when not connected to the mask.
Once you open the Data Insights section you will be greeted with the option to upload new insights at the top, along with a list of the uploads you have made from the current computer.
This functionality is not available to ‘guests’. Users must be logged in to be able to access upload previous uploads and create new ones. If you are not logged in click on the ‘guest’ button the bottom left of the window. Uploaded files are also only accessible from the same computer they were uploaded from currently.
.dab file you wish to upload into the corresponding fields using the [Browse] buttons.
The CSV Specification is available to help you understand the data shown in this files.
Each item you upload will have a status:
You can also view a video stream of what the participant sees within the application. This includes audio from the Unity App along with the ability view the video in a floating window.
You must first connect the SuperVision and Unity apps with sensor data streaming to the SuperVision app (i.e. chart data displayed) before starting the Remote Viewer Service. This enables an automatic connection to the video stream once you start the service.