Traditionally, phonological theory has held that the CV syllable is the basic syllable type across the world's languages. Recently however, Breen & Pensalfini (1999) have challenged the primacy of the CV syllable in phonological theory with data from Arrernte, an Aboriginal language spoken in central Australia. In this study, we set out to see if there is any acoustic phonetic basis to Breen & Pensalfini's claim. We examine real-word data from one speaker of Arrernte, five speakers of English, and three speakers each of Yanyuwa and Yindjibarndi (these are two other Aboriginal languages). Using F2 and F3 measures of the consonant, and locus equation measures, we find that CV does show more stability than VC in the English speakers' data, but that for the Aboriginal language speakers' data, there is a parity between the CV and VC measures. We suggest that this greater parity may be a necessary constraint on languages which have multiple places of articulation (six in the case of the Aboriginal languages studied here). We propose an alternative view of suprasegmental organization, and we suggest that more work is needed in order to understand the phonetic bases of suprasegmental structure.