The process we describe is iterative -as we will show, at each iteration the previous approach is scrutinised and improved upon, which allows for acquisition of the recordings on a larger scale than possible before, while improving user experience, and thus the quality of the data collected.
we describe a tool designed to improve our Automatic Speech Recognition (ASR) system performance, specialised for conversations over telephone - SAR-MATA (Ziółko et al., 2015).