FIELD: physics.
SUBSTANCE: electroacoustic radiator control signal is generated by transmitting to the radiator a voltage signal U(t), which includes a traditional signal Utr(t) and two additional voltage signals Ud(t) and Und(t): U(t)=Utr(t)+Ud(t)+Und(t)=k·(p(t)+a0·p(t)'+a1·p(t)"+a2·x'+a3·x). The additional voltage signal Ud(t) is calculated based on a coefficient k, which defines audio volume, the first and second time t derivatives of acoustic pressure, as well as constants a0 and a1 with values where the rate of rise and fall of acoustic pressure signals when the electroacoustic radiator reproduces test signal is maximally close to the rate of rise and fall of the test signals, and the shape of the acoustic pressure signals has the least distortions. The additional voltage signal Und(t) is calculated based on the coefficient k which defines audio volume, the displacement value of the radiating element relative to the equilibrium position, the speed of the sound radiator, as well as constants a2 and a3 with values where the shape of the acoustic pressure signal when the electroacoustic radiator reproduces test signals is maximally close to the shape of the test signals.
EFFECT: high sound quality.
6 cl, 2 dwg
Authors
Dates
2015-08-10—Published
2013-12-18—Filed