Sound of rewinding an 8mm film reel with a "Braun Visacustic 2000 digital". Close-up recording with a Tascam DR-05
More smooth and quicker ring. sine expression sin(2*pi*t*725)*exp(-t*5)*(1-exp(-t*30))+(step(t-5)-step(t-.3))*sin(2*pi*(t-.3)*565)*1.3*exp(-(t-.3)*5)*(1-exp(-(t-.3)*30))