Car audio system with universal loudspeaker(s), transmitting universal signal inside car, and with individual loudspeaker(s) transmitting individual signal for one passenger

摘要

Car audio system contains at least one universal loudspeaker (32,35), transmitting universal signal (LCPU,RCPU) inside car, and at least one individual loudspeaker (36,38) transmitting individual signal (LCPV,RCPV) for one car passenger, or limited number of passengers. Audio system includes adaptive filter with one or more variable parameters, generating compensation signal, transmissible by individual loudspeaker, dependent on universal signal. Adaptation of variable parameter is carried out by adaptation algorithm in dependence of universal signal. Independent claims are included for car including invented audio system, headset, ear plug containing microphone and loudspeaker and acoustic set.