The Asahi Shimbun' Vox Populi of today (January 31st, 2018) was about the multi-national announcements at Shin-Okubo station. The article says, "Abe sought the cooperation of a Japanese language school near the station, asking the students to record announcements in their native tongues." and in fact this Japanese language school near the station is KAI!
Actually, when I use Shin-Okubo station, I recall the voices of our former students. I'm very happy that their cooperation really help foreigners who use Shin-Okubo station.
You can read this Vox Populi from the link below. Please have a read!