This paper presents a preliminary study of intra-speaker and inter-speaker variability in speech production and perception with an inter-dialect investigation of acoustic vocalic space according to different phonological systems. This work aims at providing an analytic study based on individual data that might account for individual strategies. We have studied variability in vowel production and perception for 20 speakers of two Arabic dialects: Jordanian Arabic and Moroccan Arabic. Results show on the one hand, that vocalic spaces larger for perception than for production for speaker of both Arabic dialects; and on the other hand that the vocalic space in production for Moroccan Arabic seems more centralized than for Jordanian Arabic.