Re: [LAD] Open Source to be or not to be?

On Tue, Jul 01, 2014 at 09:24:43AM +0200, hermann meyer wrote: Do you really believe that a Baxandall tone control is in any way different from the combination of a standard first order LF and an HF 'shelf' equaliser ? Well, it isn't, the two are mathematically equivalent. The Baxandall circuit is just a very convenient way to realise such filters in analog HW. Its main advantage is that it will provide symmetrical (in dB) EQ curves having a decent control law, while still using standard linear pots, and that it is fairly tolerant of typical component errors. That's all there is to it, it doesn't sound different from any first order shelf filter. Any suggestion that the digital emulation of such a circuit would be 'better' than standard digital filters is nonsense and pure snake oil. And you can't even model the circuit correctly in discrete time as it requires a zero delay feedback path (as do many classic analog circuits). Unless you pump up the sample rate to some mad value. Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow)