Analysis and synthesis of positional variants of the Swedish consonants /r,j,l,v/ are reported, and strategies for synthesis work on sonoraiits are discussed. Specifically, the analysis of /r/ shows a complex picture with a set of allophones, using different acoustic cues. Based on analysis of fluent text material, sonorant rules affecting both source and resonator features were formulated and tested. Special efforts were made to handle the realization of consonant clusters.