Links

Here are some places I found of interest; reference papers, courses, and other whatnots.

The link are organized by categories:

DSP-related stuff
Polynomials
Schematics
Electronics references
The grab bag
Really neat stuff

DSP-related stuff.
- The basics
  - This Introduction to Digital Filters by Julius O. Smith of Stanford U explains all the math behind it all, probably the best source on the net.
  - The DSP Front to Back lectures by Joseph Picone of Mississippi State is also a great source for DSP related math.
  - The Scientist and Engineer's Guide to Digital Signal Processing is a great book on DSP, with a more hands-on approach. It also includes a great primer on Neural Nets.
  - The Interactive Digital Filter Design by A.J. Fisher of York University features great source code, appying the z-transform directly on pole-zero pairs instead of filter coefficients makes all the maths look so easy all of a sudden... way to go !
  - Laurent de Soras wrote tons of great DSP related papers, check the 'Productions' tab on his homepage.
  - DSP Design Performance is an odd looking site, with tons of great filter design tools and great links pages.
  - The Bilinear Transform, another great classic !
- FFT
  - Fast Fourier Transform one of many tutorials found on the net.
  - The Goertzel Algorithm
  - The Fastest Fourier Transform in the West, still fast after all these years, that means something.
- Pitch detection seems basic, but is it ?
  - Robust Methods for Pitch Detection is definitely a must read.
  - The Canceling Circles algorithm for pitch detection As an Explenation to visual illusions, a vectorial approach to pitch detection.
  - Piano automatic transcription system using neural networks... the grail is at hand!
- Wavelets
Polynomials
- Iterative Methods for Roots of Polynomials is a great thesis by Wankere Mekwi on polynomial roots-solving techniques. My interest in this direction is linked to the design of orthogonal wavelets filterbanks cited elsewhere on this page.
The Grab Bag
- EETimes
- Interactive Mathematics Miscellany and Puzzles
- HyperPhysics, a (not so) basic physics reference source.
- More Mathematics Links...
Free Schematics Resources
- Cool Schematics for vintage and newer amplifiers schematics.
- Selected Schematics has a great selection of guitar effects schematics.
- Guitar-related Circuits, also a great resource.
Electronics references
- Capacitor Value Codes, can't figure out why there is still no standard for these things.
- Field-Effect Transistors, all you need to know about FETs.
- Electronics Tutorials Pages, tons of interesting stuff.
- Easily Tuned Sine Oscillators a paper by National. That's the oscillator in the Guyatone vintage tremolo VT-3 pedal.
Really neat stuff
- The JLN Labs home page, great news and experiments on alternative power, propellantless propulsion and more.
- Qualight, L.L.C. Thomas Townsend Brown Technology, the Biefeld-Brown Effect is simply the greatest discovery of our time, unexploited. See this for a demo.