LED-color controlled audio trainer, for use in e.g. call-center for displaying noise and/or vocal level of communication partner, has light sources emitting light with different colors that are assigned to noise level and/or vocal level

摘要

The audio trainer has a display unit (2) partially made of a transparent material, and LED light sources (4) arranged adjacent to or within the transparent material in a concealed manner. The light sources emit light with different colors, where the colors are correspondingly assigned to preset noise level and/or vocal level or determined values. The transparent material has light conducting characteristics. The assignment of the colors is manually or automatically changed. An independent claim is also included for a noise level indicating method for displaying noise and/or vocal level of a communication partner.