ODEON 13 Features
- Improved Interface for faster data entries in lists and setups.
- Unicode Support for managing text of any language and character.
- Improved Source/Receiver positioning – so that sources-receivers can be entered directly in the 3D-View.
- Improved Tabulation tool for easier and more accurate source/receiver array construction.
- Decay Roses included in the point response.
- Improved source directivity editor, for building a directivity file faster.
- Improved Reflector Coverage Interface, for easily tracking reflections from surfaces.
- Material Optimization Tool that helps calibrating the materials in an ODEON model in order to match simulations to measurements.
- Evaluation of Simulations, where the user can change number of rays and other room parameters to investigate the accuracy of the simulations.
- Two-step Sound Source Calibration, for calibrating the measuring system without fixed measuring chain required.
- Enhancement to core algorithms for predictions and auralisation.
- Auralisation in Measured Impulse Responses for listening how different audio clips sound in the measured room.
- Frequency, Phase and Cepstrum Response, an added display in the measuring system.
- Manual definition of Onset and Truncation times in a measured Impulse Response, that allows more flexibility in editing impulse responses.
- Fast construction of a bounding box, that can be used whenever the initial geometry has openings (eg. open theater).
Improved Source-Receiver positioning
In ODEON 13 it is possible to change source or receiver position directly on the 3D Edit Source display using CTRL+LMB. While you rotate the geometry a grid is adjusted to the visible plane to help anchoring the source on its nodes. In the next figure the grid is displayed for the XZ plane.
Improved Tabulation tool
Making an array of sources of receivers is easier than ever! Now all members of the array are displayed in the 3D view in real time before changes are confirmed.
The Decay Roses (available in Auditorium and Combined editions of ODEON) display the energy arriving at different time intervals around a receiver. The tool helps inspecting the quality of reflections at various times.
Improved source directivity editor
The already known directivity polar plot editor in ODEON has now been re-build offering easier construction of directivity balloons.
Improved Reflector Coverage interface
Attractive visualization features have been added in the reflector coverage display. Rays from source/receiver to reflectors/audience can be displayed with varying density and colours according to layers.
Material Optimization Tool
Often acoustic refurbishment is needed in an existing room that suffers from bad acoustics. The room acoustician is asked to make a virtual model of the existing room. Materials are not perfectly known for all surfaces, so calibration or fine-tuning is needed in order to match simulations with measurements. ODEON 13 has been equipped with an optimization tool based on genetic algorithms. An initial estimate of materials is required. Then the algorithm searches for the best set of absorption coefficients, by a genetic evolution process, that makes simulations match with measurements.
Evaluation of Simulations
A tool for investigating how the number of rays and the transition order affect the agreement between simulations and measurements. The tool calculates the average error in JND as a function of the number of rays. Different curves are displayed for different transmission orders, helping the user to determine the optimal number of rays and transmission order for the simulations.
Two-step Sound Source Calibration
This tool removes the requirement of fixed conditions in the measuring chain, which is common rule in ordinary calibration procedures,such as diffuse field calibration and free field calibration. The two-step sound source calibration adds a second step to the normal reverberation room or free field calibration methods, in order to allow compensation for any shift in the broadband gain, from the calibration to the field measurement conditions.
Enhancements to core algorithms
Enhancements to the algorithms for predictions and auralisation
Auralisation in Measured Impulse Responses
Record an impulse response in an existing room. Go home and try how different signals would sound inside the room. Speech, music, noise, anything now can be convolved and auralised exactly as it is done so far in simulations.
Frequency, Phase and Cepstrum Response
A recorded impulse response can be further edited in the ODEON measuring system. An FFT frequency response is available now, as well as phase and cepstrum plots (spectrum of the frequency response).
Manual definition of Onset and Truncation times in a measured Impulse Response
Although ODEON offers superb automatic truncation of recorded impulse responses at the noise floor and the onset time, a group of manual operations are now possible for those who wish to have full control on the impulse response file. Together with the existing crop function, editing an impulse response file becomes an extremely time efficient task.
Fast construction of a bounding box
Very often a room model needs to have several openings in the geometry: open windows, open ceiling etc. Moreover there are projects that deal with pure outdoor sound propagation, such as an atrium courtyard, a street canyon etc. In all these cases a bounding box needs to be constructed by the user. Now an easy to use command has been added in the ODEON editor, which builds a bounding box to automatically include the whole geometry.