Music volume automatically drops when other hosts speak.

During a zoom meeting, when there are two hosts and one host is speaking while the other host is playing music through sharing their computer sound, how can I adjust the volume of the music?

In my experience, the volume of the music automatically drops when the other hosts speaks while playing music in Windows 10 High Definition Audio Driver computer. But it did not while playing music in Windows 7 High Definition Audio Driver.

We want the music volume to remain at the same level while playing music in Windows 10 High Definition Audio Driver computer too. Is there any way to fix this?