Guess what?
I'm going to show you how to make your own Main Menu video&audio
1: you need a MP4(h.264) video you want
2: download and unzip Bink2/Bink2 编码器 + DLL FINALLY.rar 在 main ·马库萨卡纳/宾克2 ·GitHub上
3: launch Bink2ForUnreal.exe ,choose your files
4: click Bink it! and awaiting,change files name to MainMenuLoop.bk2 (Prepare a very short video bink to BGS_LOGO_1080p_BinkVersion.bk2, that Splash screen)
5: The bk2 video file does not play audio, so start preparing the WEM audio file ,mp4 to wav in    MP4 to WAV Converter - FreeConvert.com
6: install and start Wwise Launcher ,create or open a project
7: click on Project in the top left corner ,choose import audio files ,click Add Files... get your wav files ,click import
8: click on Project in the top left corner ,click Convert All Audio Files...
9: click Convert and waiting
10: wem files in C:\Users\your name\Documents\WwiseProjects\your project name\.cache\Windows\SFX ; change name to 444978067.wem 456350239.wem 471598494.wem
11: The file manual installation methodology reference my mod ,enjoy that thanks