Audicom (from “Audio en computadora”, Spanish for “Audio in computer”), released in 1989, was the world's first PC-based broadcast automation system to use audio data compression technology based on psychoacoustics.
The audio card was designed with standard CMOS logic ICs and used hardware to perform an audio data compression algorithm named ECAM, based on the critical bands masking principle, a property of the human ear. Today the same principle is used in all major lossy audio compression codecs. The audio card was plugged into an ISA slot of the PC and worked using direct memory access to the host memory. The driver and the client application were developed by Gustavo Pesci, while the hardware was designed by Ricardo Sidoti and Elio Demaria.
Almost all the radio stations in the world today are using some similar technology, now manufactured by a lot of companies around the world.