On the Historical Relationship of the Pitch Accent System of Hokkaido Ainu and the Vowel Length System of Sakhalin Ainu" --A Study toward the Solution of the Historico-Phonological Relationship of Hokkaido Ainu and Sakhalin Ainu-

利用了所有关于萨哈林阿伊努人的口头和书面材料，用语音分析了一部分语音材料“Karafuto Ainugo”的音高重音，在计算机上的分析软件，看看是否有一个词的音高重音和元音长度之间的任何相关性，发现这两者之间没有明显的相关性。在特定的语音环境下，与北海道阿伊努语中对应词的高音调相关：（1）北海道阿伊努语中CVCV的第一个莫拉为低音调，第二个莫拉为高音调;（2）北海道阿伊努语中CVCCV（C）的第一个闭音节始终为高音调。其他的音节在两者之间通常没有任何关联。原始阿伊努语的语音特征是元音长度而不是音高重音，因为我们能够仅根据元音长度系统地重建原始形式，并逻辑地解释库页岛和北海道阿伊努语后期形式的语音变化，这支持了服部的理论。

Having utilized all the materials, both speech and written, on Sakhalin Ainu, the pitch accent of a part of the speech material 'Karafuto Ainugo' was analyzed with the speech-analyzer software on the computer to see if there was any correlation between the pitch accent of a word and the vowel length of that word and it is found that there was no clear correlation between the two.The long vowel of a word in Sakhalin Ainu is correlated with the high pitch of that equivalent word in Hokkaido Ainu in the following specific phonetic environment& (1)the first mora of CVCV in Hokkaido Ainu has low pitch and the second mora has high pitch, and (2) the the first closed syllable like CVCCV(C) in Hokkaido Ainu has always high pitch. The other syllables do not normally have any correlations between the two. The only phonological feature in Proto-Ainu is vowel length but not pitch accent because we are systematically able to reconstruct Proto-forms only on the basis of vowel length, and logically explicate the phonological changes of the later forms in Sakhalin and Hokkaido Ainu, which supports Hattori's theory.