Andras

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  1. Szia Attila! Perfect, thanks a lot for the quick and wonderful reply!
  2. Hi, I'm an absolute beginner with WaveForms, I've just started to play around with it last week. I think it's brilliant, there are only a few questions I'd like to ask. 1, When I use the Spectrum's FFT or CZT and I set the stop frequency to something low (like 200 Hz) and the sample to something high (like 8.192k) the response rate of the chart will get very slow (it takes 20 seconds to refresh). My guess is that Analog Discovery 2 has to fill its buffer fully before sending it for the FFT/CZT and since the sample rate is 400 Hz only it takes a lot of time. If I understand it correctly I would need a big buffer if I wanted to measure the very low frequency regions (at least 400 samples for 1 Hz, 800 samples for 0.5 Hz, etc.) so I would prefer to not lower the sample count. On the other hand a higher refresh rate would be nice. Could you add the option to use a FIFO buffer for FFT/CZT, where a small number of samples of the recently captured values would be frequently added to the buffer that is used for the FFT/CZT, so the FFT/CZT would be always highly responsive independently from the buffer size/score rate? 2, I'm trying to visually show the changes of a signal using the Spectrum with 3 different exponential dB average traces on the same channel with 5, 100 and 1000 weights. It looks alright, but since I can't set the opacity level of the different trances they overlap each other. As a small feature request, could you add opacity option to the color setting dialog? 3, Do I understand it correctly that if I wanted to measure the cumulative power of a certain frequency region (like the theta, alpha, beta, gamma brainwaves) I need to write a script to do the math and plot the values? Is it possible to create a continuously updating chart which shows the different measurements over time this way? Thank you, Andras