Changing Wall Material for Multiple Faces

How can I quickly switch between materials for a group of Faces? Individually re-assigning each Face to another absorption spectrum is of course one way to go. But switching each Face to a second alternate material is very slow. Is there a better way?

Yes, there is. The easiest way is to define an Object containing all these Faces. After that you can go to the Object's properties sheet and set the Wall Material of all Faces with a single click.
Of course you can also use the method described below.

Delete Items after combining Projects

I built two models in EASE 4.0 and used the command: "Combine Project". It combined the projects, but I can no longer delete items in the project because it says that they are appended to the old file. What does that mean and how can I solve it?

EASE 4.0: This message usually occurs if items to be deleted are still referenced to from within an object. It can be one of the following:

Coverage Cones not showing

My problem is in painting the conic 3-6-9 dB loudspeaker coverage patterns on the seating area. I get the magenta line indicating the aiming angle, but I am not able to turn on the patterns even though the program says the beam patterns are on.

If the Options are shoing 3,6,9 dB Cones ON and the magenta line is visible, check also the currently used frequency under Options, maybe the current band is not valid. Otherwise you should also check if there are really cones with values different from 0° and 180° using the Speakerbase.

Deleting many Listener Seats

When you overpopulate a room with too many listener's seats, is there a way you can globally delete all seats in one easy command?

Go to the Listener Seat Tables (Ctrl+Shift+S) and select the seats you want to delete by dragging the mouse down the left most column. Then go to Edit/Delete Listener Seats. This would waste all the selected seats.
Of course this would work for other items, too.

Invisible Items are still visible

I opened a Vertex property sheet and checkmarked "Invisible". The problem is, that the Vertex is rendered the same way like before, nothing changed. Is this a programming bug?

Only one checkmark can cause a behaviour like this. In the Options Window/Items Tab (Shortcut: F9) please change (LMB click) the column "Inv." (for invisible items) in the row "Vertices" from "Yes" to "No". This will cause all Vertices which are set invisible not to be rendered.

Displace not working?

I inserted a vertex P1 at (0,0,0), then I duplicated it and I chose for the displacement of the new P2 x=+3. It did not move, why?

EASE 3.0 Only: Make sure that Room Symmetry is turned off or (if it is turned on) that the Symmetry Axis is not at x=0, otherwise a displacement moving the Vertex off the axis (in x-direction) is not allowed.

What does the message "Non-Zero Surface Integral" mean and how do I solve this problem?

After the command Check Data has been invoked, EASE calculates the sum of all faces areas. This sum can be considered as a three-dimensional value because every area is added dependent on its orientation in the room. For example two parallel faces with equal areas looking at each other would give zero.
As a result the surface integral of a closed room must also equal zero with a little tolerance.

To solve this problem: In most cases there are two or more faces in the same location. Delete one of them.

Ahnert Feistel Media Group

Located in Berlin, Germany, AFMG® Technologies GmbH has created the industry standards EASE and EASERA software for acoustic simulation and measurement as well as their related products EASE Focus, AFMG SysTune, EASE Address and EASE SpeakerLab.

In cooperation with our partner company SDA Software Design Ahnert GmbH we develop and distribute software for:

Electro-acoustic and
room-acoustic modeling
Electronic and acoustic
measurements
Applications in
engineering and physics
RF and infrared
simulation

Register for AFMG News

Stay informed about our new technologies, software updates, special offers, upcoming seminars, and more.

 

Subscribe Now

Upgrade to AURA v4!

Boost your EASE® performance​​​​​​

Pay 110 EUR less*
* Upgrade for only 470 EUR (= 496 USD) now instead of 580 EUR (= 612 USD)

Image
Picture Störerblock AURA 4 Promo