Not every reaction looks like a loud celebration. Some people lean forward quietly; others move their arms and shout. Fesi’s Reaction Sensitivity setting changes how readily the app triggers a capture, giving you a way to test the detector against your normal reactions.
Sensitivity is a capture preference, not a volume control or an export-quality setting. Choose it before a session and judge the result by watching the clips.
Know the platform labels
Fesi offers Low, Medium and High on iOS. Android uses Low, Normal and High. The middle choice is a useful starting point for a comparison, but it is not a guarantee that every reaction will be caught.
High makes triggering easier by using a lower reaction threshold. Low requires stronger evidence before triggering. Those names describe how readily capture starts, not how strongly you need to perform for the camera. Keep reactions natural while testing.
Separate detection from visibility
Before changing sensitivity, check that Fesi can see you in adequate light and that the session is ready. A face outside the frame or a camera that is unavailable is not repaired by selecting High.
Use the capture-readiness guide to check the preview, framing and sound. If those conditions change between tests, you will not know whether the preset caused the difference.
Run a controlled short comparison
- Choose your usual seat, lighting and phone position.
- Record a short session with the middle preset.
- Review whether wanted reactions were captured and whether ordinary conversation produced unwanted clips.
- End the session, change one preset, and repeat under similar conditions.
On Android, sensitivity cannot change during an active session. More generally, make changes between sessions so you can tell which setting produced each result.
If quiet reactions are consistently missed despite good framing, test High. If many ordinary movements trigger clips, test Low. Neither choice should be treated as a promise of perfect detection in a noisy or changing room.
Keep sensitivity and feedback distinct
The preset is your explicit starting preference. Detection feedback describes a particular captured result: Good capture, Not a reaction or Started too late. Fesi’s adaptive detection can use that feedback within bounded adjustments, so a preset is not necessarily the only influence on later capture decisions.
Read the feedback-label guide before using labels to tune the experience. A late clip and an unwanted trigger are different problems; recording which occurred is more useful than labeling every disappointing result the same way.
Judge useful clips, not clip count
A session with more recordings is not automatically better. Review whether the clips include the expressions, movement and context you wanted. A lower count of meaningful clips can be easier to use than a Library filled with ordinary conversation.
After you find a suitable setup, change it only when your results or recording conditions justify another comparison. Keep an eye on lighting and framing whenever you move the phone or record in a new room.