the documentation for SigmaStudio says:
Designing a DSP program from scratch can be quite difficult. The DSP used on the Beocreate board is very powerful and has a lot of internal registered. Setting only one of them incorrectly can result in all kinds of problems. Therefore we do not recommend that you start a project from scratch, but use our template project from us. You can just download it from here.
But that link is missing. Can you update the documentation, please?