Download area CATT-Acoustic™ [demo download]. CATT-A full version users update via the CATT-Acoustic users' page. Free software (v2.0b fixes a problem that. The EASE software suite provides system designers and consultants with an invaluable set of tools for all aspects of professional practice, from detailed, realistic modeling and simulation of venue acoustics and sound system performance to informative and engaging client presentations, as well as professional data assessment and verification.

I can't say I've ever used CadnaR (plenty CadnaA experience. But that's besides the point!) so I'm no authority, but as I understand it, this is a bit more simplistic compared to the others and normally used for internal industrial noise modelling. The other two I use a fair amount each! Odeon is a more powerful and efficient tool for ray tracing calculations and analysis in my opinion. This is the tool I would use for traditional room acoustics models, to determine things like RT or SPL transfer between spaces.

It also has some useful tools like reflector analysis, if you're looking at bolstering STI with early reflections from a stage position for example. Odeon will also allow you to set up surfaces to have sound transmission, either by way of a transparency coefficient, or a full spectrum of R values. As for EASE, this is a much more powerful tool for PA/VA or loudspeaker layout designs where you're looking at specific products. For a start, most loudspeaker manufacturers accept this as the impartial industry standard and will almost always have EASE data for their loudspeakers, usually available simply from their websites (or sometimes just a quick tech support phone call away). (yes, Odeon has a built in library of some loudspeakers, but it's no contest on this one really) This makes it a lot easier when it comes to modelling specific loudspeaker sources in a space.

There are also more useful tools for things like setting delays, or editing loudspeaker groups together. Another consideration is ease of use / learning curve. For this I will just say that Odeon seems a lot more user friendly to me. Autocad lisp steel sections sizes of diamonds.

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I would advise that it's likely a lot easier to learn Odeon from scratch than EASE. But neither are too bad, and both have very good and friendly support (and in the case of EASE an online community forum for help!) Something I will also mention is geometry generation. For both cases it's a pain to do within the software, you'll definitely want to get SketchUp or something for making the geometry itself. Both programs will accept externally made geometry, Odeon through a SketchUp plugin to export in the correct format, and EASE through a built in import module within the program itself. What's nice is that you can set your material groupings using the SketchUp material paintbucket, which saves a LOT of time for complex models.

How complex is Odeon to use? I've got basic room acoustics knowledge through being a mechanical engineer and having worked with acoustic products in projects over 10 years, but never really done in depth analysis. I've used basic programmes where you can model a room and add surface absorption from databases and get a rough but fairly believable simulation of the expected reverberation time in the room.

Add more absorbers or change surfaces form for example wood to concrete and see how it differs. Would you need in depth acoustic education or is it usable from novice to expert? ( I guess I'll check youtube for info too) Edit: Looked quite understandable, and pricey:) • • • • •.

EASE Focus 3 is an acoustic simulation program for 3D modeling of line arrays, sub arrays, digitally steered columns and conventional loudspeakers. Thanks to the support from major loudspeaker manufacturers, EASE Focus 3 is free software for the end user. Based on AFMG’s leading simulation software EASE, this concept made it possible to implement a broad scope of features and functionality. • Simulate line arrays, column speakers, point sources, and sub arrays • Define audience areas, section views, and receiver locations flexibly • Calculate sound coverage and frequency response immediately • Use systems of different manufacturers within one project • Use FIRmaker optimization to compute FIR filters tailored to the venue With EASE Focus 3, system designers can simulate the acoustical performance of the complete sound system to find the optimal setup for a given venue with multiple audience areas, curved and inclining seating. Focus 3 assists the user with many intelligent features such as Auto Splay functions, Virtual EQ, and detailed analysis of sound coverage, SPL and frequency response.