In this study, the natural conversations of people that were recorded in a soundproof laboratory, which have characteristics of bilingualism (Turkish and Kurdish), were analyzed. This analysis was carried out on records obtained from five (5) male speakers of Turkish and Kurdish. These records were analyzed with comparison methods of manual and automatic that is used in forensic speaker identification examinings. Manual analysis were carried out at two steps: Firstly; F1, F2, F3, F4 formant frequency values and LPC graphic by discriminating same phonemes in Turkish and Kurdish records were compared. Secondly; pitch frequency values were compared at the sentence level. As for automatic method; the algorithms of formant, pitch and gauss were compared. In analysis process; also auditory findings were used with these comparisons. As a result of this study; the effect of findings were obtained from manual and automatic analyses to the forensic speaker identification examining field were evaluated.