Slideshow with photos and video clips

I see, thank you, OT. My video clips are all much too noisy, so I did not notice faint background music.

I am usually creating the slideshow first without a background music track.

If I want a video to play automatically, I save the slideshow as a video and add this video to new GarageBand project. Now I can mix the background music track in GarageBand and fade the backing track in and out when a video is playing. GarageBand offers a lot of sound effects as well, just like iMovie. Then I can save the backing track as an audio file or write it as a new sound track into the video of the slideshow.

The background music track should automatically fade out and be silent while a video is playing. At least, that is what happening in Photos 5 on macOS 10.15 Catalina.

Just found the easiest way to remove the audio from a video clip - in Quicktime Player 10:

Works like a charm. I'm embarrassed that I didn't look in the other menus before. 🤭 Remember to always edit a copy.

I find that if the video's audio track is subdued/quiet the music filters in very low but still slightly audible - Photos V 5.0

Quicktime Pro was ideal for removing audio from videos but, unfortunately, it's gone by the wayside. Can Garageband edit a videos's audio portion?

Thanks, I'll give it a try.

I am using it all the time for this, as long as I have to fix the audio of a single clip.

(https://help.apple.com/garageband/mac/10.3/#/gbnd8470e7ed)

When I drag a video clip into a GarageBand project, the audio appears on a separate track. I can cut it, trim it, apply filters, pan it left or right, and mix it with other tracks and audio clips.

Then I can save the new audio track to the disk or write it back into the video clip.

But to edit the video itself I need iMovie or Final Cut.