In the bottom it says: With stories from reporters Alessandra Freitas, Felipe Neves and Gabriela Boccaccio. I selected and translated the one I wrote. 

Mysteries of the city

Sermon on high fidelity

In January, Sé Cathedral debuted a sound system capable of eliminating the traditional echo of ecclesiastical environments. Because it is more efficient and modern, it made it possible to reduce the number of acoustic boxes installed on the site by nearly 70% (along with equipment numbers). The technology also facilitates the transmission of events by radio and television stations. "It's like switching a tube TV to a plasma TV," explains engineer Gregor Milbers, a partner at Lando, who installed the devices.