Language is fundamentally a system of vocalization that has developed along with the human speech appartus consisting of the articulartory organs of the mouth and throat. In this regard, it is important to realize that linguists always start from the spoken form of a language as produced by native speakers. The first step in learning and analyzing a language is therefore the recording of its phonology or system of sounds. This is a much more complicated process than is immediately apparent and requires the identification of units and pattern of sound at two levels: that of phonetics, or raw speech sound production, and phonemics, the construction of contrastive sounds.