In the autobiographical writings, in despite of their ontological sameness ``experienced-I`` and ``narrated-I`` are epistemological different being. This epistemological difference of ``I in the past`` and ``I in the present`` causes different voices in the autobiographical writings. ``I in the past`` is already ``the Other`` for ``I in the present``, and moreover, the accumulated historical-social experience which owns ``narrated-I`` makes heterogeneous voices in the autobiography. The heterogeneous voices in the prose including in the autobiography can be defined as Bakhtinian term of "heteroglossia" [raznorechie], which is a master trope at the heart of all his other projects, one of the more fundamental categories associated with his thought. Heteroglossia is Bakhtin`s way of referring, in any utterance of any kind, to the peculiar interaction between the two fundamentals of all communication. In this article, we tried to analyze the characteristic of heterogeneous voices of ``experienced-I`` and ``narrated-I`` in Mandelshtam`s Noise of Time within the framework of Bakhtinian term of "heteroglossia". Mandelshtam who recognized himself as Raznochinetz-intellectual writer paid particular attention to the historical-social awareness rather than the personal memory. This historical-social awareness has been realized in his autobiographical writing by the heteroglossia which is exposed to the socially hybridized diversity. In Noise of Time Mandelshtam describes the linguistic feature of the Other`s words by the narrative with heteroglossia and reflects the historical and social spirit of the age.