Can I make simulations in a room when there is loss of rays?

Ideally, a room should be watertight, to ensure a sufficient population of rays to model the sound decay accurately. The amount of allowed ray loss is specified in the Room setup and is 10% by default. If this percentage is exceeded, ODEON will stop the calculation. Generally, you should make sure that the reflection density at the receivers is large enough (at least 30 reflections per ms). This can be checked in the Reflection density tab of the Single Point Response, available in Auditorium and Combined editions.

An exception is the modelling of outdoor scenarios, in which rays can freely escape the room. For this type of models, set the ray loss allowed to 100%. The reflection density should still be sufficient at your receiver positions. For more information, see this video.

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