PIC A2Ds, lik1e most A2Ds, are specified to have +/-1LSB of error. So any attempt to distinguish a change in the input at that level is doomed to failure. On 27 November 2015 at 16:46, wrote: > > Depends on the kind of output. If audio in the range of human hearing, > > > > a .1% change in Pitch should be readily discernible in much of the rang= e. > > Pitch possibly, volume I doubt it. Really what he is adjusting is > equivalent to the volume of light. > > > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 __________________________________________ David C Brown 43 Bings Road Whaley Bridge High Peak Phone: 01663 733236 Derbyshire eMail: dcb.home@gmail.com SK23 7ND web: www.bings-knowle.co.uk/dcb --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .