Duh! Of course, the button is right there. @matt , how does one set the number of tones (or the number of octaves) to be generated? I see the field to set the number of tones per octave. But where do I set the range?
(As an aside, in general I find the various frequency range or bandwidth settings difficult/non-intuitive to find. What I mean is the distortion integration frequency window, the noise integration frequency window, the multi-tone generation window at issue here, and the display window. Wouldn’t it be better if there was one settings menu where these settings would all reside?)
Ideally, I’d like to specify frequencies and amplitudes myself. One example would be to generate Bob Cordell’s 1980’s three tone MIM signal (19kHz, 10.05kHz, 9kHz). A general way to edit, save and read in a frequency & amplitude (and starting phase?) list for the generator would be most helpful.
Similarly, it might be helpful to be able to specify a multi-notch filter, so one can have the software integrate the distortion power (or sqrt(power)). It would fill a gap between looking at the amplitudes of n-th order harmonics directly & separately when only a few signal lines are generated, and visually assessing the amplitude and density of the ‘sea’ of distortion lines generated by many signal lines. Related: in some of your posts, like post #7 above, from December 2021, you (@matt) show highlighted frequency bands, for example around signal lines excluded (notched) from a THD calculation. I have not found a way to turn this feature on.
Having just recently started to think about it, I believe looking at the peak level of the ‘sea’ of distortion lines will just evaluate the dominant harmonic, often the 2nd (or maybe third, if there is a cancellation mechanism for even orders). Having the software integrate the multi-line distortion signal might be better. With sufficient resolution it might even be possible to do this by order, i.e. separately sum all n-th order distortions that can arise from a multi-line signal spectrum.
Or maybe this already exists, and I just haven’t found it yet?
Added: I double checked that I am not overlooking menus or options because of my tablet interface.
One deficiency I noted is that while right-clicking works on a tablet (long touch = right click), the hovering tooltips that display for example definitions for the measurement boxes above a graph screen do not appear with a tablet, unless a keyboard with a mouse (equivalent, e.g. touch pad) is attached.
I double checked with a keyboard the right-click menus for the underlined buttons in the ‘hardware’ left side menu, and I do not see any additional options besides the ones that appear on long-touch with the tablet touch screen interface.
