Thanks for your helpful and insightful advice.

1. you are right, Since if I could give the sampling rate 20 times higher, the fidelity will be sound preserved.  Thanks for that, what about 10 times higher, Since when we are collecting the experimental data, the sampling rate is just 10 times higher. I remembered that there is a class that I took before, it said that your sampling frequency should at least 2.5 times higher. I thought 10 times higher is already good enough(Since I want to shorten the simulation time). Am I correct?


Best Regards