A reaction video can show the right expression while missing the cheer or conversation you expected. Before changing capture settings, determine whether the recording lacks sound or whether the playback setup is simply making it hard to hear.
Fesi uses microphone access for reaction audio. On Android, microphone access is optional and silent capture remains possible. A camera preview therefore does not prove that sound is being recorded.
Check playback before recording again
Open the original clip in Fesi and play a section where you remember speaking. Check playback volume and whether sound is going to a connected listening device. If you already shared the clip, compare the original with the saved or delivered copy rather than assuming both behave identically.
These checks help distinguish an output problem from a capture problem. If one app plays sound and another does not, keep the original and investigate that difference before deleting or re-exporting anything.
Read microphone status in the next session
When preparing another Android Reaction Mode session, look for microphone availability or a silent-capture message. Fesi can show “Microphone unavailable — reaction clips will be silent” and provide an Enable microphone action. Follow the permission guidance if you want audio.
On iOS, microphone access can be managed in the device’s Settings for Fesi. Camera and microphone permissions serve different purposes: allowing a picture does not by itself establish microphone access. Follow the app’s prompts and verify the resulting recording rather than assuming the permission choice took effect.
Make a short spoken test
- Prepare the camera from your normal recording position.
- Confirm microphone access and read the capture status.
- Record a brief test in which you speak clearly.
- Finish the session and open the resulting clip in the Library.
- Listen to the original, then check a saved copy if that is your intended sharing route.
Use this test before an important event and after changing permissions. It answers a concrete question: can this setup produce a playable reaction with the sound you expect?
Understand what cannot be added afterward
Granting microphone access now affects future recordings. It cannot reconstruct speech or room audio that was never captured in an existing silent file. Increasing reaction sensitivity also does not create a missing audio track.
You may still want to keep a silent reaction for its visual expression. Decide based on the actual clip. Do not overwrite or discard a useful original just because it lacks the sound you hoped for.
Check the room after permission is working
If the test includes sound but speech is difficult to hear, assess the recording position and competing room noise. A television near the phone can sound different from a person seated farther away. Play a realistic test before relying on the setup for a whole session.
The readiness guide covers framing and session preparation. If the session was interrupted by an app switch, review the interruption guide before expecting it to have continued. For saved copies, the export-quality guide explains why you should verify the output in its destination.