Hello borate,
I now bought the WavePad Standard Edition and you are absolutely right: It provides both FFT and TFFT 😁. Thank you again 👍!
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… sorry, I mean thank you, Ai 🙂.
P.S.: Since 3 weeks, I‘ve been in contact with NCH software support. The support always respond, which is very fine, but my question was unfortunately not answered until today from support.