What is the difference between Chaozhou dialect, Shantou dialect and Jieyang dialect in Chaoshan dialect?

A native of Shantou city, he lived in Chenghai Chaozhou when he was a child, and now he is studying in Chaoyang. I have a deep understanding of the languages in these areas, and it is no problem to switch pronunciation and intonation seamlessly in one second. In support of the previous statement, Shantou people think Shantou dialect is the most standard. But in fact, with the transfer of rural population to cities and the transformation of cities and towns, it is difficult to find the so-called standards. Based on the language of Shantou city, the tone of Chaozhou Chaoan Anbu dialect is higher, with more nasal sounds, which is very similar to Chenghai dialect, while Jieyang dialect is similar to Chaozhou dialect, but the tone is flatter. To sum up, what sounds like nothing is Shantou dialect. There is a big difference between Chaoyang dialect, Chaonan dialect and Shantou Chaozhou dialect, so many people in Jieyang, chaozhou people and Chenghai can't understand Chaoyang dialect. Shantou will understand because it is close to Chaoyang. Chaoyang dialect and Chaonan dialect also have a certain accent division in the region. For example, I will feel more seafood when I listen to my brother-in-law Haimen … This is really indescribable. Unfortunately, Zhihu has no voice function. I don't know much about South Australia. According to local students, it is the same as Shantou dialect. The current Chaozhou opera is basically like Chaozhou accent, probably because of the singing relationship. Let's analyze the accents of several hosts of Shantou TV station in detail in the future … As for Shanwei … Shanwei does not belong to Chaoshan area. Generally, we become the "synthesis of Shanwei three districts" of Hailufeng. Although it is closely related to the name of Shantou, the development of Shanwei itself is not close to Shantou, and the local people in Shanwei are also disgusted with Shantou. See Shanwei Plate in Zhihu for details. Each region of Chaoshan dialect has its own characteristics, and it may be necessary to consider where this accent belongs. After all, this accent has environmental factors and its own variations when learning a language.