Patent ID: 8867766

Claim:
A method for producing a signal which is audible by an individual, comprising processing acoustical signals along a first controlled signal processing path resulting in a first audible output signal as a first component of said audible signal, an uncontrolled transmission of acoustical signals along an uncontrolled signal transmission path being established to result in a second audible signal as a second component of said audible signal, reducing audibility of said second component by further processing acoustical signals as transmitted by said uncontrolled signal transmission path along a second controlled signal processing path to result in a third audible signal and compensating at least in part said second audible signal by said third audible signal; exploiting for said processing along said second controlled signal processing path a processing part of processing along said first controlled signal processing path including electrical-to-mechanical output converting, wherein said processing along said first controlled signal processing path comprises signal processing at different sampling rates and wherein said processing along said second controlled signal processing path comprises a bypassing processing part, bypassing a part of said processing along said first signal processing path, wherealong signal processing is performed at one single sample rate.