w=4.;​​v23=8.;​​noisefreq=Round[10×2Pi]​​Inputnoise=Interpolation[Table[RandomReal[NormalDistribution[1,Sqrt[w]]],3*noisefreq]][t]​​i2=Interpolation[Table[RandomReal[NormalDistribution[1,Sqrt[w]]],3*noisefreq]](3*noisefreq-1)
t
3
+1