Why does the Cantonese subway station in Guangzhou sound so nice?

Of course, people who like the announcement of Guangzhou subway station are not limited to Cantonese. I like Mandarin and English. I often go back and forth between Guangzhou and Shenzhen, sometimes I go to Hong Kong, go to university in Wuhan, and have also been to Beijing. My favorite subway station in these places is Guangzhou. Guangzhou subway station gives me the feeling that the sound in the station is broadcast-level, clear pronunciation and mellow voice, full of energy. There is a feeling of being a TV news announcer, and male and female voices are broadcast alternately, so that you can distinguish the previous news from the next one well. Not only that, its male voice and female voice have the voices of several people, and the voice of the English station must be the pronunciation of people in English-speaking countries. In addition, the time of reporting all kinds of information to the station is properly controlled, and what information to report is decided according to the distance of different stations. The rhythm of the station newspaper is also very good. Speak Cantonese as soon as you finish Mandarin, and speak English as soon as you finish Cantonese. There must be three important messages. As for the less important information "xx, xx, xx please get off at this station", it is only Mandarin. Let you have something to listen to most of the time during the whole ride, giving people a feeling of getting to the station (report everything and then "the train will arrive"). It is really enjoyable to take the subway in Guangzhou. A lot of praise, then continue to write a little about Guangzhou subway. The subway broadcast has a better place, that is, when the car screen door arrives at the station, there will be a prompt in Mandarin, Cantonese and English, "Welcome to xxx station, the door is about to close, beware of being caught". Of course, the subway in every place is like this, but this one in Guangzhou is still the charm of the broadcast sound, which sounds particularly exciting.