AudioSource sound intensity differs dependent on the number of AudioSources

Hi,

I have a problem with Unitys AudioSources.

There is a sound clip that should be played multple times from different locations.
For a test I created 4 GameObjects with an AudioSource component attached to each one of them. For a test they are located at the same position.
So currently there are 4 AudioSources in the scene that should play the same sound clip at specific times.

The configuration of all files is exactly the same. So I would assume that if I play 1 or 4 files the volume should be exactly the same (since they are located at the same position and completely independent from one another). But in fact the volume differs! If I play all 4 sounds I can hear it much louder compared to only 1 sound being played. The configuration is still the same and never changed.

How can I avoid this strange behaviour?

Kathrin

After doing some investigations I guess this is how sound sources really behave, right?