It was professionally installed into the building because we don’t have enough audio knowledge to do it ourselves. But I would imagine if you have a little bit of knowledge about different amplifiers and speaker systems, it would be possible to install yourself. We used Panphonics directional speakers (
https://panphonics.com/products/#compact) as we had a chance to go see them at the contractors show room, and they were convincing enough that we bought a demo speaker, which worked well for our situation. I had no previous knowledge of these type of speakers and it was quite interesting to go experience it. The speaker was mounted to the ceiling, and the installer was of great help on how to best install it.
The initial problem was that we had to have 2-4 meetings in the same hall, and due to echo and other factors, it was difficult to concentrate. The speakers have resolved this problem, and now we are testing whether speech-to-text programs work better with these speakers. Previously, the speech-to-text programs have not worked very well as they don’t pick up every word of the speech. We have promising results for this with the directional speakers, as the speech is very clear from the speakers. The only problem we have is that they are quite pricey (around 600 dollars per speaker), but we will be looking into how many we need and see how much the whole thing is going to cost.