public Noise min(Noise n) { cb = min(cb, n.cb); return(this); }
public Noise mul(Noise n) { cb = mul(cb, n.cb); return(this); }
public Noise max(Noise n) { cb = max(cb, n.cb); return(this); }
public Noise add(Noise n) { cb = add(cb, n.cb); return(this); }