I am writing an app to work with synthetic time series data from a physics experiment. In our experiments we always have $1/f$ noise in our time series, but I haven't been able to find code/packages to generate $1/f$ noise in synthetic time series data. Can anyone tell me how to do this? I have a feeling it should be pretty simple and that I'm missing something obvious, but I don't know what it is. Any advice?
Also, I looked through the list of questions and don't see anything too on point apart from this: making pink noise (1/f) using list of frequencies