Harmonic oscillation

According to wolframalpha.com following equations have some interesting values:

solve (i * 943 * (-1) * z)/ x - 944 * z + 440y
solve (i * 943 * (-1) * z)/ x - 944 * z + 1/45 * 440y

But what I really want to do is the optimal output rate for accoustics. It is between 943 and 944.

Further universe oscillates at 52 Hz or something alike.