In 2004, Yamaha instituted YCATS – Yamaha Commercial Audio Training Seminars, aimed at training sound engineers in the operation of digital mixing consoles. Over the years, YCATS expanded to cover also other professional audio technologies such as networking and electro-acoustic system design. Since 2004, over 100.000 engineers have been trained. In 2017, the seminar structure has been updated, including different training levels (basic, advanced, expert), each with official certification – with the network modules also including Audinate’s Dante certification schemes. Also webinars and on-demand sessions are offered. All seminars, webinars and on-demand sessions are offered free of charge.