How to get the array of envelope in every second?

[Megan8821]

Hi! I am excited in this calculation. Currently, the calculation is to calculate the whole piece, but I am wondering is there any way to get the array of envelopes in every second? I mean in the first second, the amplitude_envelope is [[0.00000000e+00, 2.32199546e-02, 4.64399093e-02, ..., 4.00544218e+01, 4.00776417e+01, 0.00000000e+00, 0.00000000e+00,
0.00000000e+00], and second is..., and so on.

Thanks!