This paper presents a review of the necessary technology in order to develop a Vocal User interface to be integrated into the jMRUI [1]. jMRUI allows MR spectroscopists to easily perform time-domain analysis of in vivo MR Data and might in the future be used during intraoperative MRI scanning. An operation room with an MRI scanner is a highly noisy environment which degrades speech recognition. These specific circumstances must be taken in consideration for the development of the interface. These considerations are described along with the structure of the vocal interface.