On Thu, Jan 10, 2013 at 4:55 PM, Mayes, Kerry <[email protected]> wrote:
> Hi all > > I'm looking for some software that will display up to four sine waves > added together. My trouble is I don't really know what search terms to use! > > What I am trying to demonstrate is the difference between > equal temperament and just intonation - two ways of tuning in music. For > example, the note A is generally 440Hz, 880Hz, ... A just tuned 3rd (Db) > is 550Hz whereas the equal tempered 3rd is 554.37Hz (440 * 2^(4/12)). > > So adding the just intonation sinewaves should give a regular looking > pattern whereas the equal tempered will be a bit "messy". > > If anyone knows of anything like this, I'd be keen to hear. > > If you just want to get graphs, then that would be pretty simple. Just look for graphing software. If you want to take real sounds and present them on an oscilloscope type view then I did find some oscilloscope software on linux a long time ago. It took a sound card input and graphed it continuously. Reminds me of trying to print out lissajous patterns on a teletype via BASIC at school in 1979... > Thanks > Kerry > > > > -- > *Kerry Mayes*, Principal Consultant > Mayes & Associates > Financial modelling for better decisions > *www.mayes.co.nz* > > _______________________________________________ > Linux-users mailing list > [email protected] > http://lists.canterbury.ac.nz/mailman/listinfo/linux-users > >
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