East Asian-related ancestry became dominant in Insular Southeast Asia already between 15,000 years to 12,000 years ago, and may be associated with Austroasiatic groups, which however got again replaced by later Austronesian groups some 10,000 to 7,000 years ago.
ˈiːst ˈeɪʒənɹᵻlˈeɪɾᵻd ˈænsɛstɹi bɪkˌeɪm dˈɑːmɪnənt ɪn ˈɪnsəlɚ sˈaʊθiːst ˈeɪʒə ɔːlɹˌɛdi bᵻtwˌiːn fˈɪftiːn,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ jˈɪɹz tə twˈɛlv,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ jˈɪɹz ɐɡˈoʊ, ænd mˈeɪ biː ɐsˈoʊsɪˌeɪɾᵻd wɪð ˌɔːstɹoʊsɪˈæɾɪk ɡɹˈuːps, wˌɪtʃ haʊˈɛvɚ ɡɑːt ɐɡˈɛn ɹᵻplˈeɪst baɪ lˈeɪɾɚɹ ˌɔːstɹoʊnˈiːʒən ɡɹˈuːps sˌʌm tˈɛn,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ tə sˈɛvən,zˈiəɹoʊzˈiəɹoʊ zˈiəɹoʊ jˈɪɹz ɐɡˈoʊ.