I'm not entirely clear on what it is you're looking for, but here's a page that has a lot of test equipment-like software, mostly using the sound card for input. http://www.dazyweblabs.com/shannonsoft/page3.html Mike H. >Hello Piclist, > > I4m looking for a Spectrum analyzer software (freeware) where I can >define a periodic > waveform. > Is to analyze harmonics in waveforms. > > Thanks in advance, > Gus > > >-- > Digiled mailto:mail@digiled.com > >-- >http://www.piclist.com hint: The list server can filter out subtopics >(like ads or off topics) for you. See http://www.piclist.com/#topics _________________________________________________________________ Working moms: Find helpful tips here on managing kids, home, work and yourself. http://special.msn.com/msnbc/workingmom.armx -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics