# What is a sensation

Sensations are the physical reaction that you feel when interacting with the virtual world. They are made up by a group of microsensations, which are the smallest units users can calibrate. To create a microsensation, you have to modify 6 different parameters:

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1. **Frequency:** The frequency is the number of pulses per second the microsensation sends to the player.
   1. A micro with frequency equal to 1hz will send one pulse per second, which would feel like independent impacts (e.g. dart).
   2. A micro with a high frequency, 100hz for example, will result in a “continuous” sensation (e.g. wind, bleeding, etc.).
2. **Duration:** The amount of time (in seconds) that the microsensation will last. For example, if you create a sensation with Frequency: 1Hz; Duration: 1 sec, you will feel a dart after 1 second. On the other hand, if you create a sensation with Frequency: 10Hz; Duration: 0.1 sec, you will immediately feel a dart.

_\*You cannot establish the frequency of 1Hz in less than 1 sec._

3. **Intensity percentage:** Each user calibrates their maximum intensity level (100%) during their calibration process in the OWO App. You can assign the intensity percentage that users will feel. E.g: 50% of the users calibration, 75%, etc.
4. **Fade in:** How long it takes for the microsensation to progressively go from 0 to the assigned intensity percentage (in seconds), the maximum is 2 seconds.&#x20;
5. **Fade out:** How long it takes for the microsensation to progressively go from the assigned intensity percentage to 0 (in seconds), the maximum is 2 seconds.
6. **Exit time:** The additional time in seconds between one microsensation and the next one to play.

## **Families**

When creating a baked sensation you may want to group them by a category, things like "Combat", "Impacts", "Parkour", etc... You can do this thanks to the **Family** field. Which will display the sensations grouped by its family to the user in the OWO app, allowing them to more easily search for the sensation they want to  calibrate or try out.

You can add a family to a sensation either with the [latest version of the Sensations Creator](https://app.gitbook.com/s/6MXddwmCeZoJQASk36AM/tools/sensations-creator).

For the family to appear in the OWO app, the baked sensation must be part of the authentication. For more information read [Configure your game](https://owo-game.gitbook.io/unreal-engine/configure-your-game).
