Room Acoustics Enhancement
The biggest advantage of room accoustic modifiers is that a simple lecture hall can be turned into a concert hall or a theatre with a single push of a button, so a single facility can host miscellaneous cultural events.
Mechanical changes provide a more stable, more reliable solution. However, electro-occousitic changes are way more cost-effective, since it can be installed after the construction of the building and can be extended to the auditorium or even to the whole, three-dimensional sound field as well.