About the audio of the screen recorded video

Hello.

I made a screen recording of the MAX-generated music and patch. When I watched the video after recording, there was no sound. I tried restarting my PC and MAX, but the result was the same. I'm using a macbookpro14 as my computer, and I've launched an app called background music in advance to record the QuickTime screen.

I would like someone to tell me how to improve it.