ULYSSES room acoustics calculation and simulation

Reverberation time calculations RT60 (Sabine, Fitzroy, Eyring)

The functions include the assignment of absorption material (from the octave-based absorber databases) to the different room areas and the calculation of reverberation times according to Sabine, Fitzroy and Eyring.

Specification of target reverberation times

In addition, target reverberation times (RT60) can be specified and the required absorption areas calculated.
For this purpose, no absorption materials need to be specified for the room surfaces.

Calculation of total direct and diffuse sound as well as STI values (speech intelligibility)

If required, various acoustic sources can also be incorporated into the model and sound propagation, intelligibility (STI, ALCons), level distribution, etc. can be calculated.

The sources positioned in the model can be used to calculate the direct and diffuse sound level distribution, the overall sound pressure level, intelligibility values and other parameters.

Ray tracing and auralization

Also ray-tracing and energy-time-curve (ETC-representations), Schröder integration as well as auralisations (auditioning) are possible. In addition, reverberation times and intelligibility values can be determined from ray tracing and results can be made audible.

Units and languages

ULYSSES is switchable from metric (metric units such as m) to imperial (US units such as feet)

There is also a ULYSSES version with English user interface available. In both language versions, units can be metric (metric units such as m) are switched to imperial (US units such as feet).

Free demo version

Saving and exporting models requires a license for the ULYSSES Design Engine.
A demo version for testing all functions, but without the ability to save and export projects is also available.

Download the free ULYSSES Demo version »

Operating Systems, Hardware, Licensing

Microsoft-Windows Operating Systems

ULYSSES can be installed on all Microsoft Windows 32 and 64 bit operating systems (Win 95 through Win 10).

Mac OS and Linux, Virtual Machines

Of course, ULYSSES also runs on Mac OS and on Linux (with WINE etc.) 32 and 64 bit operating systems as well as on virtual machines..

Low Hardware Requirements

The hardware requirements are minimal. ULYSSES runs on 256MB RAM on almost all processors starting at 486DX. The free space on the hard disk should be at least 500MB.

On modern hardware, the simulation calculations are correspondingly faster. So: the faster the processor, the faster it can be simulated.

A mouse, a trackball, a touchpad, etc., and a keyboard with function keys (F1-F12) are highly recommended because of the input capabilities in the 3D CAD engine!

The graphics card must have at least one high-color card with min. 800x600 pixels.

For auralizations (auditioning), a sound card with 16Bit / 44.1kHz adjustment is required.

Server Operation

ULYSSES must be installed locally and can not be installed or run on a server as a server-client service.


ULYSSES licenses are always assigned to a computer and are tied directly to the hardware of the computer.
If you need to format or change the hard disk, or if you want to use another computer, they will change Computer identification number. and you need new, matching license number. This matching license no. need to be special for the "New" or "modified" machine will be generated. Registered full-version users will only be charged a processing fee for a full calendar year no more licenses are renewed than you own in total.
Registered full-version users will only be charged a processing fee for a full calendar year no more licenses to be renewed than you own in total.


ULYSSES Licenses are always delivered in 3 packages, i. e. you get at least licenses for 3 computers.
If you need more licenses, 6-er, 9-er 12-er u. s. w. Packages available.
You can find the license fees here

You want to know more or buy a license?
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