Synthésia is a software suite for TV broadcasting and FAST channels from Vizion'R, a French company that says it has focused on radio and television broadcasting since 2008. According to the vendor, the suite runs from media import to stream distribution and video-on-demand delivery. Components include pre-processing and metadata, scheduling and traffic management, playout with multichannel audio, subtitles and real-time graphics overlays, live streams mixed into the daily playlist, dynamic ad insertion, real-time monitoring and media cutting for FAST channels. The software is described as fully cloud-based.
Vizion'R is a French SAS in Paris, and its website names no foreign parent company. The company's own website is hosted at Hetzner in Germany, but the website does not say where the Synthésia environment itself runs or where media files and broadcast data are stored. Ask the vendor, together with the data-processing terms, especially if you broadcast from a region with data-residency requirements. No self-hosting option is mentioned.