I have only written waveform diagrams in the frequency domain before (that is, the waves are shaking when there is sound, and remain still when there is no sound). I have not written about the time domain. I don’t know that Wandering can meet your needs, but It should be simpler to divide the time domain. Just get the current decibel size and then draw it according to the time. There is no need to perform Fourier transform or