Despite recent advances in automatic speech recognition (ASR) technology, successful ASR applications tend to be limited to telephony, command-and-control functions, head-worn microphones, small vocabularies, and/or simple grammars. Recording and processing spontaneous, human-to-human conversations in natural settings is a far more challenging task. Face-to-face meetings are not only challengin...

This paper describes a novel approach towards automatic evaluation of recorder performance. The processes from finding errors to the formulation of feedback are based on analyses of student performances and experience of recorder teachers. The developed algorithms were implemented in IMUTUS, a prototype practising environment for the recorder [3].

Flight recorders, often called “black box” are two devices designed to record data about flights. Flight Data Recorders (FDR) record various flight parameters. All aircraft’s are required to have Flight Data Recorder (Black) systems installed in it. Depending on aircraft, manufacturer can either use Non-Ejectable Flight Data Recorder or Ejectable Flight Data Recorder. This requirement is implem...

Flight Data Recorders (Black Boxes) generate data that is collected on an embedded memory device. A well-known difficulty with these devices is that the embedded memory device runs out of space. The worry of getting into this problematical situation compels the software of the flight data recorder to operate in a watchful mode it constantly makes efforts to minimize the use of memory space; oth...