Preview Panel
The Preview panel mimics a phone, allowing you to see how your effect will look when used in TikTok. Your effect is applied to a selected preview video.

Record a Preview
You can also control the record state here. Try clicking the Record button in the middle of your preview.

Change Preview Media
You can select from existing preview media from the Preview menu dropdown. You can also add your own media by clicking + Add media in the Preview menu. Alternatively, you can use your webcam by clicking on the Camera button next to the Preview menu. To refresh your effect, click on the Restart button.

Media is not downloaded by default. Simply click on the media you'd like to switch to, and it will automatically download.
Change the TikTok UI
You can also change the TikTok UI or device you want to mimic.
If you want to manipulate the Preview panel as a separate window, click on the Undock button.
Learn more about how to preview your effect in Effect House.
Preview with Your Microphone
Use your computer's microphone to preview and test audio-reactive effects, such as voice controls, volume detection, and rhythm-based interactions.
To use the microphone:
- In the Preview panel, click the Microphone button

- If prompted, allow Effect House to access your microphone
- Speak or play audio to test your effect
When the microphone is on, the button displays the current input volume to show that audio is being detected.
- Audio is only captured while the microphone is turned on
- Audio capture stops when you turn off the microphone, close the project, or quit Effect House
- Audio is used only to test your effect and is not recorded or uploaded
Profiler
The Profiler provides runtime performance data, helping you identify optimization opportunities to achieve smoother visual effects.
To open Profiler:
- Go to the Preview panel
- Click Profiler

Profiler opens and will display the current performance data for the following:
- Time to First Frame
- Frame Time
- Current Frame Rate
- Total Memory Usage
