Well, you might be right from a point but when you are talking about a specific device - tuner - you are talking about it's main/core functionality which is detecting the frequency of a vibrating string. Output/feedback of this core functionality is in optical form. All tuners feedback the player by a led/indicating sound or analog scale. I believe 'optical guitar tuner' expression is not quite right. Maybe it's just me thinking this way, if it's - sorry for the pollution. On Fri, May 27, 2011 at 8:08 AM, Oli Glaser wrote= : > On 26/05/2011 22:04, Yigit Turgut wrote: >> Your title is misleading, what you are talking about is a standard >> tuner - not detecting the frequency of each string by using optical >> spectrum waves. Yes it is also possible. > > I wouldn't say so - it can be called an optical guitar tuner. > The definition of Optical is: adj. visional; of the eye; of vision > This tuner uses vision during the tuning process as opposed to a > "standard" tuner which would convert vibration of the string to an > electrical signal for processing. > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .