Array loudspeakers in Copenhagen Central Station
The new PA system with 20 line array loudspeakers in the main hall of Copenhagen central Railway station has been modelled with Odeon. The hall is about 190000 m3 and has a reverberation time of 4 s. The loudspeaker installations were made in collaboration with Duran Audio and AV-huset.
You can also listen to the auralization with the 20 array loudspeakers by scrolling further down this page.
It is a challenge to achieve reasonable speech intelligibillity in this large main hall with a reverberation time of 4 seconds. You will find the achieved STI further down in this page.
Most of the installed line arrays have 16 units like the one above and the four central line arrays have 32 units each. All line arrays have beam steering and different pre-delays of the Intellivox type.
In the Odeon array source editor you will have the nearfield balloon, the far field balloon and the distribution of the direct sound from the array loudspeaker in question. These are shown above for the Intellivox array loudspeaker with 16 units.
The speech intelligibility in terms of the STI was calculated by Odeon in a number of positions distributed over the hall, and the measured STI results along with other parameters shows a fine agreement with the predictions.