Re: [LAD] Portable user interfaces for LV2 plugins

On Wednesday, March 02, 2011 09:15:32 pm Fons Adriaensen did opine: I beg to disagree with the premise that the waveform is useless. I have had a scope probe in one hand for 60 years now, and there is nothing that comes close to finding that slightly edgy sound that just isn't quite right like a good look at the waveform when you have a known test signal. Clipping is easier to see, crossover distortion is easily seen by the trained eye, and even slew rate limits can be made to stand out plain as day. Note however that I am not referring to a digitized waveform which has its own set of problems unless the sampling frequency is 100's of times faster than the signal being sampled, I am referring to the raw analog signal itself. Digitize crap,and you still have crap even if the digital sample is quite high and the A-D is totally monotonic. Consumer stuff rarely is either wide range linear, nor monotonic beyond 13 or 14 bits in a 16 bit system. Even 24 bit stuff probably falls face first in its oatmeal at 20 good bits. Yes, you can see the results of all those distortions by doing an FFT on the digital signal, but unless one is intimately familiar with the FFT display, it can't tell you the real problem is crossover related so you only guess, or find someone who can tell you whats wrong, and chances are, he will use an analog scope to find and point it out. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) <http://tinyurl.com/ddg5bz> 667: The neighbor of the beast.