The materials in this record are the audio and video files, together with various configuration files, used by the "SEAT" software in the study described in Moore, Green, Brookes & Naylor (2022) "Measuring audio-visual speech intelligibility under dynamic listening conditions using virtual reality" They are shared in this form so that the experiment may be reproduced. For any other use please contact the authors to obtain the original database(s) from which these materials are derived. The materials were created to be compatible with v0.3 of SEAT, which is available from GitHub. Note that the materials must be placed at C:\seat_experiments\cafe_AV.