Stage

Calculates the stage parameters. An example is given below.

EDT is explained in the Reverb Times section and Clarity (C50) is explained in the ISO3382 section.

Support is defined in [A. C. Gade, "Investigations on musicians room acoustic conditions in concert halls, II: Field experiments and synthesis of results," Acustica, vol. 69, pp. 249-62 (1989)] as:

                                         (4)

where it is assumed that the response is measured with an omni-directional microphone at a distance of 1m from the source. The time limits are t_d, the direct time, t_e, the early time, and t_l, the late time. ST1 is defined with direct time 10 ms, early time 20 ms and late time 100 ms.