Phonetically, accented Rigvedic syllable was characterized by height (rather than prominence) as a "high tone", immediately falling in the next syllable.
fənˈɛɾɪkli, ˈæksəntᵻd ɹɪɡvˈɛdɪk sˈɪləbəl wʌz kˈæɹɪktɚɹˌaɪzd baɪ hˈaɪt ɹˈæðɚ ðɐn pɹˈɑːmɪnəns æz ˈeɪ "hˈaɪ tˈoʊn", ɪmˈiːdɪətli fˈɔːlɪŋ ɪnðə nˈɛkst sˈɪləbəl.