antOn, i had never thought about using a trigger to initiate a sound for a given area!  Quite clever way of approaching it.  I looked at the Lua code in the attached JPEG, and it all seems to make sense.  However, I have been unsuccessful in downloading the example file.  I have sent you a request to have access to it.  My email is fruit*****@gmail.com  I very much look forward to trying it out.

Many kind thanks for your efforts!

Regards,

MaratisFan 
Australia

http://forum.maratis3d.com/viewtopic.php?id=763&p=2

I tried to make three spaces with three different sounds so that as you moved in you would hear an new sound unfortunately when you start play, all three sounds play at once.

I have attached the Project file, hoping someone might have a go at configuring all and re-posting to show how this can be  done.

Here's hoping!  :-)

Here's the Link:  https://www.dropbox.com/s/lgttbr3d6pud8oo/SOUND-TEST.7z

Regards,

MaratisFan