Len Ovens wrote: > On Thu, 21 Aug 2014, John Rigg wrote: >> ... faders with a roughly logarithmic taper (no VCAs). > > Which log? I would think .5 db for the same amount of movement the > entire fader length would be logarithmic (log 10).
For a fader from -INF to zero, alsamixer uses dB = 6000 * log10(pos), where pos is 0...1: <http://git.alsa-project.org/?p=alsa-utils.git;a=blob;hb=HEAD;f=alsamixer/volume_mapping.c> Regards, Clemens _______________________________________________ Linux-audio-dev mailing list [email protected] http://lists.linuxaudio.org/listinfo/linux-audio-dev
