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I've been using a program for identifying harmonics for a wave after doing a fourier analysis.

http://www.phon.ucl.ac.uk/resource/sfs/esynth.htm

I would like to be able to tweak some of the harmonics involed in a wave and also to add harmonics.

The program mentioned above permits this kind of operations but it isn't precise.

Does anyone know of a good tool for harmonic analysis and synthesis like the one mentioned above?

ps:It's important that the program exports the harmonics to a file.

thanks.

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closed as off-topic by datageist Sep 11 '14 at 19:15

  • This question does not appear to be about signal processing within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ it doesn't sound like you're writing your own algorithm, but if you want to go that way, you need a good pitch detector to know the period (to a precision of a fraction of a sample) and a good resampling or interpolation algorithm (like the polyphase thingie). from that you can resample every period so that each cycle has something like, say, 256 points. from that you can DFT and you will have the magnitude and phase information for the fundamental and 126 more harmonics. i've written about how to do this regarding Wavetable Synthesis. $\endgroup$ – robert bristow-johnson Sep 11 '14 at 15:44
  • $\begingroup$ oh, i just realized how old this question is. $\endgroup$ – robert bristow-johnson Sep 11 '14 at 15:45
  • $\begingroup$ Requests for existing software tools are off-topic, as the answers usually won't require any signal processing content. In addition, they fall into the "help me shop" category, which is largely deprecated on SE sites (cf. blog.stackoverflow.com/2010/11/qa-is-hard-lets-go-shopping). $\endgroup$ – datageist Sep 11 '14 at 19:15
  • $\begingroup$ @robertbristow-johnson Nice article, btw. $\endgroup$ – datageist Sep 11 '14 at 19:27
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    $\begingroup$ thnx, @datageist. it needs to be updated (with nicer drawings), but so does the Audio EQ Cookbook. $\endgroup$ – robert bristow-johnson Sep 11 '14 at 19:43
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Try NCH Software

From Wikipedia:

NCH Software is a software development company founded in 1993 in Canberra, Australia. The Colorado office was started in April 2008 due to the large U.S. customer base. NCH Software primarily sells to individuals via their website.

And further

Browser Toolbar

During the installation process NCH Software also by default (but you can uncheck the option during install) installs Google Chrome. This can be unselected during install or removed after install. In older versions of their software a browser toolbar powered by Conduit,[11] was installed as well as making changes to the default homepage and search engine.

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    $\begingroup$ So which product of NCH can do harmonic analysis? $\endgroup$ – Deve Sep 11 '14 at 7:20

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