Garden Gnome Software

I'm working on a panorama where there is a sound and a video popup. Is it anyhow possible to mute the "sound" in the panorama while the video is playing??

You can just set the volume for the sound to 0

Es dreht sich ja um 2 "Tonspuren": einmal der "Soundeffekt-Sound" der im Kugelpanorama richtungsabhängig läuft und zum anderen der Sound des Videos, das über einen Video-Hotspot gestartet wird. Ich hätte gerne, das der "Effekt-Sound" stummgeschaltet wird, wenn das Video läuft. Mir ist es bisher nur gelungen BEIDE Tonspuren stumm zu schalten...

Each sound would have its own unique ID.
So in the video element you can have the actions:
Source: Activate => Action: Volume => Type: Set Volume => Level: 0% => Target: (sound ID)
Source: Deactivate => Action: Volume => Type: Set Volume => Level: 100% => Target: (sound ID)

When the video is playing the volume will be set to 0 for the targeted sound.
Note this also works with the Seek-bar tool so you can do this with any sounds as well as video.
Example, when a audio clip is playing the background sound can be lowered until its finished.
The seek bar can be hidden so the viewer does not see it.
Regards,
Hopki

As a follow up to this, mobile devices, iOS can not use the volume actions.
So, in this case, you would use media pause and play actions.