On Sun, 17 Aug 2014 16:15:58 +0000 Fons Adriaensen <[email protected]> wrote:
> On Sun, Aug 17, 2014 at 08:24:38AM -0700, Len Ovens wrote: > > > So Allen & Heath uses 127 levels on their top end digital control > > surfaces, How do they do it? Well they have two different scales: > > - fader: ((Gain+54)/64)*7f - also used for sends > > - Gain: ((Gain-10)/55)*7f - this is preamp gain > > Suppose you have *real* faders which have a range of 127 mm. > That's not far from a typical size on a pro mixer. > Would you ever adjust them by half a millimeter ? > > 127 steps, provided they are mapped well, and zipper noise > is avoided by interpolation or filtering, should be enough. > > The real problem is that many SW mixers > > * don't use a good mapping, > * and don't have any other gain controls. > > The latter may force you to use the fader in a range > where it has bigger steps. > > Ciao, > Well that got me thinking! Presumably this should be set up as a proper log law, so even if the steps represent (say) 0.5dB that still gives a control range of over 60dB -- Will J Godfrey http://www.musically.me.uk Say you have a poem and I have a tune. Exchange them and we can both have a poem, a tune, and a song. _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
