International Electrotechnical Commission (2003). 60268--16-2003 Sound system equipment---Part 16: Objective rating of speech intelligibility by speech transmission index, , (60268--16-2003), 1--28
International Electrotechnical Commission (2003). 60268--16-2003 Sound system equipment---Part 16: Objective rating of speech intelligibility by speech transmission index, , (60268--16-2003), 1--28