The Blizzard Challenge is an independent evaluation of syn- thetic speech systems. This paper describes the Jess system, one of the participants in the Blizzard Challenge 2007. One of the unique features of the Jess system is the use of articulatory-acoustic feature detection to ensure a higher degree of acoustic consistency at joins. To make results comparable with the system presented last year all components of the system except the actual synthesiser were the same as last year's entry.