It is quite simple: a visually impaired passenger approaches a mast with indicator, presses the conspicuous yellow button on the mast and the contents of the passenger information display are read to him. Based on a so-called text-to-speech system (TTS), the display contents are converted by the indicator PC into audio signals and output via the integrated loudspeaker.



So that even special texts and abbreviations are pronounced correctly, two reference tables for the pronunciation and the plain texts for abbreviations such as "st." for "street" are deposited on each indicator PC. So the sound of iqu Systems sounds very natural and completely understandable.