How to change the resolution of a video in Filmora?

In the templates section of Filmora, you get the option to choose from various predefined template options. Select split screen effects, drag and drop video clips in these frames. 

Go to the timeline > Speed Icon > Unifrom Speed Option.

Drag the speed slider to the right to speed up playback. You can also enter values for speed increase. Preview, save, and export the final product.

To remove noise from video in Filmora, follow these steps:

1. Right click the video in timeline
2. Go to the Audio options
3. Select Audio Detatch
4. Double click this detatched audio;
5. Select Remove Background Noise

There are two ways to cut a video in Filmora, one is manual and the other is automated:

Manual:Import the clip in Filmora and select the split icon from toolbar. You can now trim the part you mean to remove by splitting it from the entire clip and delete that part of the video from toolbar.

Automated:Go to the Scene Detection function from the scene detection window. Click on detect and all the parts of the video will be seperated based on scene changes. Now you can delete the unwanted parts from the video as required.

Import the file in your desired format, Filmora currently supports MP4, HEVC with Alpha, ProRes4444 with Alpha, and WebM VP9. After the editing is done, you can export the file in MP4 by selecting the format settings from Local tab.