ENHANCEMENT OF SPEECH INTELLIGIBILITY IN A MOBILE COMMUNICATION DEVICE BY CONTROLLING THE OPERATION OF A VIBRATOR IN D PENDANCE OF THE BACKGROUND NOISE

摘要

A mobile communication device includes a loudspeaker for reproducing speech from a speech signal, a vibrator, and a measuring unit for measuring background noise in relation to the reproduced speech. The communication device further includes a vibrator processing unit for generating a control signal dependent on the background noise for controlling operation of the vibrator during speech reproduction dependent on a level of the background noise.