The sound transmission mechanism has a sound generator (2) with a pair of loudspeakers (21,22). there is a unit producing acoustic signals (10). The generated sounds (SL,SR) provide an acoustic position image such that the virtual sound source corresponds to the alerting direction. The sound generator is installed in the car seat of the person using the system.
Car sound alerting/alarm/speech navigation transmission having sound generator/loudspeakers acoustic signal fed producing virtual sound source corresponding alert direction and car seat installed.