Hi Jan, > If there is a problem, and you know what it is, and you know how to > fix it, why don't you just fix it? For various reasons. One condition would be that the original authors agree that there is something to be fixed. This discussion started not about the IIR crossover but about the FFT-based filter. I presented the technical arguments, and the only response was a lot of obfuscation (by referring to my remarks as being about optimisation while I had made it quite clear from the start that this was not the case), irrelevant references to general theorems posted by someone who clearly does not understand them, and finally that 'three qualitatively more experienced DSP engineers' who remained anonymous and did not present any technical arguments were of the opinion that I was wrong. If there's something wrong in my analysis I'll be the first to admit it if presented with the evidence. If OTOH the response is to publicly attack my competence as a DSP engineer, then the one who does that should better have his own shop in order and know what he's talking about. Which as the IIR crossover example shows is clearly not the case (it's not a typo). Because before I post a single word of criticism I will have measured the application, analysed its code, and if necessary refreshed and updated my understanding of the relevant theory. A second reason is that there are multiple issues and fixing all of them would not be a matter of a few patches. And regarding the FFT-based filter, even if implemented correctly this remains IMHO the wrong kind of filter. It has its uses, but certainly not as a way to emulate a parametric EQ or a 30-band graphical EQ. If I would fix it, that would also imply I approve the way it is being used, and I don't. So, for the moment, 'I rest my case', and maybe I'll look into Jamin again in a few months. I did not start this discussion anyway. Ciao, -- FA There are three of them, and Alleline. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
