DSP

DSP Resources

The Scientist and Engineer's Guide to Digital Signal Processing

(Steven W. Smith, Ph.D.) http://dspguide.com Good for teaching the basics to DSP beginners. However, it deliberately tries to avoid complex number math which is a mistake; by taking a shortcut you just end up shortcutting your own understanding.

Charan Langton

http://complextoreal.com/ Same criticism. Why avoid complex numbers? Why attempt to build the complex case from the reals? But insightful tutorials nonetheless.

Julius Orion Smith

https://ccrma.stanford.edu/~jos/ http://dsprelated.com/dspbooks All MusicDSP roads lead to JOS sooner or later. But be warned, this is seriously heavy going. I would recommend learning from Oppenheim then coming back here. http://pipad.org/src/spiral/Jaffe-Smith-Extensions-CMJ-1983.pdf <-- plucked string algo

Prof. Alan V. Oppenheim

Signals and Systems (π's #1 choice!) http://ocw.mit.edu/resources/res-6-007-signals-and-systems-spring-2011/index.htm Oppenheim is where it is. Where JOS may leave a logic gap for the reader to job, Oppenheim will probably state the result twice. These lectures are golden! Make sure you do the exercises as you go, otherwise you will come adrift!

Olli Niemitalo Digital sound processing tutorial for the braindead! (2003)

http://yehar.com/blog/?p=121 ASCII art pictures & formulae. Oldskool.

Maxim Integrated -- A filter primer

http://www.maximintegrated.com/app-notes/index.mvp/id/733 Come back to the pictures on this page if you're struggling to get your head round Z/Laplace transform.

Katja's homepage on sinusoids, complex numbers and modulation

http://www.katjaas.nl/home/home.html Cute mannequins, beautifully presented site!

Fourier Transform

Fourier SYNTHESIS visualisation with d3.js http://bl.ocks.org/jinroh/7524988

http://blogs.zynaptiq.com/bernsee/pitch-shifting-using-the-ft/

http://betterexplained.com/articles/an-interactive-guide-to-the-fourier-transform/

http://blog.revolutionanalytics.com/2014/01/the-fourier-transform-explained-in-one-sentence.html

http://www.dsprelated.com/showarticle/56.php <-- free DSP books

Community

http://dsp.stackexchange.com/

http://www.dsprelated.com/ -- connects to comp.dsp mailing list

IRC

   ##dsp on FreeNode
   #musicdsp on EFNet

Unordered

http://jackschaedler.github.io/circles-sines-signals/index.html

http://www.sp4comm.org/download.html <-- free book online

http://www.dafx.de/ <-- Digital Audio FX conference, 10+ years worth of papers