How do I enter ambient noise for use in intelligibility predictions?
Ambient noise settings for the simulated room are found in the bottom right of the Acoustic Parameters window.
Clicking on the Measured Noise Level tile will zoom in on the related two tiles and update the Properties window on the left-hand side to show the current noise level values.
In EASE 5, the noise level can be defined based on a single Broadband value or based on a fractional-octave spectrum in Octave or 1/3 Octave resolution. You can also paste values from another application into the table by selecting the first row for the copied values. The resulting curve is shown in the Noise Spectrum tile. It will be applied to all calculations that require information about the ambient noise level, such as STI calculations.
Noise spectra can also be loaded in the Acoustic Parameters window. The noise spectrum does not necessarily need to be added manually, as described above, but can also be imported from an external .exn file. EASE 5 offers a pre-installed database that includes files for commonly used standard curves, such as NC (Noise Criterion), NCB (Balanced Noise Criterion), NR (Noise Rating), PNC (Preferred Noise Criterion), RC (Room Criterion), and RNC (Room Noise Criterion). Additional noise curves can also be added to the database as needed, allowing users to expand the selection based on specific requirements.
Below the Noise Spectrum tile, you will find a switch where Noise Levels can be turned on and off for the simulations.
