Speech sounds contain thousands of acoustical features. The linguistic acoustical features can be importantly used to recognize the identity of the speakers due to the fact that every person produces different sounds. This paper is descriptively aimed to investigate the role of tone frequency characters to recognize a speaker’s identity. In order to achieve the objective of this research, the researcher pictures the character of tone frequencies by using PRAAT 4.5.1.4. Supported by mathematical measurement, the writer will formulize the role of these features for identification of personal identity and describe the logical implication of this formulation.

Keywords: Tone, frequency, acoustic, identity, recognition

Arikunto, Suharsimi. 2000. Prosedur Penelitian. Jakarta: Rineka Cipta.

Crystal, David. 1997. A Dictionary of Linguistics and Phonetics: Fourth Edition. Cambridge, MA: Blackwell.

Dellwo, Volker. Forensic Phonetics. 2003. http://www.phonetiklabor.de/phonetiklabor/Inhalt/Unterrichtsmaterial/PDFs/Forensic Phonetics.pdf (July, 25, 2011)

Fant, G. 1960. Acoustic Theory of Speech Production. The Hague: Mouton and Co.

Fromkin, V., R. Rodman, dan N. Hyams. 2003. An Introduction to Language: Edisi Tujuh. Boston: Thomson Heinle.

Kridalaksana, Harimurti. 2001. Kamus Linguistik. Jakarta: Gramedia Pustaka Utama.

Matthews, Peter. 1997. The Concise Oxford Dictionary of Linguistics. Oxford: Oxford University Press.

Nolan, et. al. 2006. A Forensic Phonetic Study of ’Dynamic’ Sources of Variability in Speech: The DyVis Project. Hal: 13-18.

Rahyono, F.X. 2005. Aspek Fisiologi Bahasa dalam Pesona Bahasa: Langkah Awal Memahami Linguistik. Jakarta: Gramedia Pustaka Utama.

Riyanto, Yatim. 1996. Metodologi Penelitian Pendidikan Suatu Tindakan Dasar. Surabaya: SIC Surabaya.

Sarwono, Joko. Suara Manusia: Unik kah?. 2009. http://jokosarwono.wordpress.com/2009/03/17/suara_manusia_unik_kah/ (July, 25 2011)

Sarwono, Joko. Tak berkutik Karena Akustik. 2008. http://dosen.tf.itb.ac.id/jsarwono/2008/08/23/tak-berkutik-karena-akustik/ (July, 25, 2011)

Silalahi, Ronald. 2011. Peran Frekuensi Formant sebagai penanda Identitas: Sebuah Formulasi Fitur Fonetis Eksperimental untuk Kepentingan Forensic Acoustic. Kongres Internasional Masyarakat Linguistik Indonesia (KIMLI) 2011.

Silalahi, Ronald. 2011. The Role of Acoustical Features for the Identification of Personal Identity. Persidangan Linguistik ASEAN 2011.

Verhaar, J.W.M. 1983. Pengantar Linguistik Indonesia. Jakarta: Gramedia.

Webb, David. 2007. All About Forensic Science. com

http://www.all-about-forensic-science.com/all-about-forensic-science-website.html (July, 25, 2011)

Wood, Sidney. 2005. Praat for Beginners. http://person2.sol.lu.se/SidneyWood/praate/whatform.html (July, 25, 2011)