Which county in Heyuan is more authentic in Hakka dialect?

Hakkas in Baipu Town, Jinxian County, Heyuan are more authentic. According to the inquiry, in Heyuan, the characteristics of initial consonant, vowel and tone of Hakka dialect in Baipu Town, Jinxian County are the most authentic. Hakka dialect in Heyuan city is different from Meizhou dialect and Gannan dialect, and it is a unique local language distributed in Dongjiang River basin of Guangdong Province, mainly distributed in Heyuan city and Huizhou area, and is called water source sound and central plains ancient sound.