Hi,
I’m looking for some software for room acoustic analysis. I am mainly interested in the 1st and 2nd reflections exact position identification and in analysis of different acoustic treatments’ impact.
I know it is possible to use a geometrical methods for that, but with non cuboid shapes, e.g. slanting roofs it’s not that easy any more…
I know there’s EASE, CATT Acoustics, Ramsete, but they are more than 3k$ each. CARA, which was cheap is not available anymore, I also heard bad opinions about its accuracy. There’s also Ramsete but I don’t see it’s capable of reflections’ spots identification.
Do you happen to know of any other software for room acoustics?
Thanks!
I’m looking for some software for room acoustic analysis. I am mainly interested in the 1st and 2nd reflections exact position identification and in analysis of different acoustic treatments’ impact.
I know it is possible to use a geometrical methods for that, but with non cuboid shapes, e.g. slanting roofs it’s not that easy any more…
I know there’s EASE, CATT Acoustics, Ramsete, but they are more than 3k$ each. CARA, which was cheap is not available anymore, I also heard bad opinions about its accuracy. There’s also Ramsete but I don’t see it’s capable of reflections’ spots identification.
Do you happen to know of any other software for room acoustics?
Thanks!
CARA is the only one I used. Not bad, it can help get an idea of what's going on in the room. I found the RT30 - RT60 predictions to be accurate. Can't say about reflections. That might be hard to verify.
Thanks for the answer. It's not possible to purchase Cara, their website says: "The life time cycle of our products expired." while trying to order.
Is anyne using ULYSSES?
It's approx 1k$ so 3 times less expensive.
http://www.ifbsoft.de/beispiele/ulysses.pdf
It's approx 1k$ so 3 times less expensive.
http://www.ifbsoft.de/beispiele/ulysses.pdf
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You want to identify reflection locations?
Your eyes are not far from your ears, get a friend to hold a mirror against the wall in various locations and mark down the locations where you can see the tweeter or woofer...
Costs you nothing at all.
Your eyes are not far from your ears, get a friend to hold a mirror against the wall in various locations and mark down the locations where you can see the tweeter or woofer...
Costs you nothing at all.
Yes, but room simulation software is much more complex than that. It's still a good trick, tho limited.
I used CATT acoustic for my final project on colleague, it was student version with full version. someone at my lab cracked the registration. I modeled a local theater Ismail Marzuki.
later i tried to use newer free version on their website. i think that the difference is the level of iteration that is limited on free version. but when i try to compare both result with full version, only the different on number of digit resolution. for home use should be fine.
later i tried to use newer free version on their website. i think that the difference is the level of iteration that is limited on free version. but when i try to compare both result with full version, only the different on number of digit resolution. for home use should be fine.
REW has good tutorials and forum, and although I don't use it for room acoustics, I'm pretty sure most REW users do use it for that, and so that forum would be quite experienced and helpful.
Thank you very much for your answers.
@Ron E: I'm aware of this trick, but for the non cuboid shapes and 2nd reflections it's not that easy anymore... Besides, I would like to quantify each reflection's contribution, peraps also next orders are important in some situations...
@gadut: are you able to compare it to EASE? people complain at its difficulty vs EASE, but it has more features at similar price...
@trobbins: REW is not a simulation tool, but thank you for the answer.
@Ron E: I'm aware of this trick, but for the non cuboid shapes and 2nd reflections it's not that easy anymore... Besides, I would like to quantify each reflection's contribution, peraps also next orders are important in some situations...
@gadut: are you able to compare it to EASE? people complain at its difficulty vs EASE, but it has more features at similar price...
@trobbins: REW is not a simulation tool, but thank you for the answer.
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Check out SoundEasy. It has some acoustic modelling capability, as far as I know, though I have never tried it myself.
Bodzio Software /Soundeasy scroll down to the middle of the page for SoundEasy.
Bodzio Software /Soundeasy scroll down to the middle of the page for SoundEasy.
never used EASE before, just open the website and this is maybe the reason you call it easier "Rooms can be defined using a CAD module".
I used CATT on 2006, WinXP only, with no programming basic (i even hate java, C) and never be able to use CAD software but i found that CATT was not difficult. however you need to have a geometry sense because you have to define each coordinate of each panel.
If you really want to do it, i suggest that you download the free version of those softwares before spending money. if this just for hobby, you better invest on measurement tools.
@Shaun: Good advice, but I already own SE 🙂. Generaly speaking FEM tool are used for low frequencies only. Right now I'm looking for something to be used above the Schroeder frequency.
@gadut: How complicated is it to move small treatments on the wall surface in CATT? Do you have to change coordinates of each point separately or there is some tool allowing to move them in x/y coordinates? Can particular treatments be "switched off" in order to assess their influence or they have to be simply removed and then added again?
Thanks!
@gadut: How complicated is it to move small treatments on the wall surface in CATT? Do you have to change coordinates of each point separately or there is some tool allowing to move them in x/y coordinates? Can particular treatments be "switched off" in order to assess their influence or they have to be simply removed and then added again?
Thanks!
no any tolls last time I used CATT, all coordinate was inputted into text file and you just delete each line if you want to remove the surface. if you switch off a surface then you will create a hole and give incorrect simulation result. just change the surface properties into 0% or 100% absorption
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