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2 of 2 found the following review helpful:
A superb resource Feb 01, 2008
I have designed digital signal processing algorithms for twenty years. Having studied classic texts such as the Oppenheim and Schafer "Digital Signal Processing," I had a fairly good "technician's" understanding of how to use FFTs and design digital filters, or so I thought.
However, the underlying visual concepts eluded me. How do the signal analyzer outputs and Matlab plots really map to the complicated mathematics forming their foundation? Far too much was "left up to the reader," so forget the proofs and move on.
Then I encountered the Stanford University CCRMA resource created by Dr. Smith. I began to study the bite-sized chunks of core-course education on the DFT...a few chapters later, I was ready to add the hardcopies to my library.
As "Fretboard Logics" unlock the mysteries of guitar playing, so does this resource unlock the mathematics in terms that can be easily understood. Dr. Smith's instruction is revolutionary, a reformation in dissimenating knowledge all too carefully guarded by an academic elite. Is it a shame that a music department has to educate engineers in basic mathematical principles? No complaining...just buy the books!
1 of 1 found the following review helpful:
A practical introduction to digital filters Jan 29, 2008
I've got to hand it to two particular authors for bringing the subject of digital filters to musicians and the subject of music to engineers and computer scientists - Perry Cook and the author of this book, Julius O. Smith. Until recently only Mr. Cook's books have been in print. Mr. Smith's books have been purely in the online realm unless you are an actual student of his. Now two of his online publications are available for those of us interested in the practical details of musical signal processing. There is this book, of course, and also the excellent "Mathematics of the Discrete Fourier Transform".
I've already read the two books in print - and skimmed through the dozens more Mr. Smith has on his website. The online access gives you a good idea of whether or not you want to purchase these books, but to get access to the problem sets you need the print version of the book. For the low price compared to other signal processing books, believe me it's worth it. By working through both the math and the practical applications of filter design in processing audio, the author gives the reader a real intuition for the subject. You might want to have Oppenheim and Schafer's book on the subject, "Discrete Time Signal Processing", on hand for the rigorous mathematics part of signal processing. Keep this one on hand if you want to see signal processing in action and explained carefully. I find both books to be essential depending on what I'm doing. The following is a list of topics covered in the book:
The Simplest Lowpass Filter
Matlab Filter Analysis
Analysis of A Digital Comb Filter
Linear Time-Invariant FIlters
Time Domain Representations
Transfer Function Analysis
Frequency Response Analysis
Pole-Zero Analysis
Implementation Structures
Filters Preserving Phase
Minimum Phase Filters
Background Fundamentals
Elementary Audio Digital Filters
Allpass Filters
Laplace Transform Analysis
Analog Filters
Matrix Filter Representations
State Space Filters
Linear Time Varying Filters
Recursive Digital Filter Design
Matlab Utilities
Digital Filtering in Faust and Pure Data (PD)
To find Julius Smith's online publications just type "Julius O. Smith" into Google. That will take you to his homepage and from there you can easily find his many online publications, including most of this book.
2 of 2 found the following review helpful:
Fantastic book. I wish I had this 10 years ago Dec 05, 2007
This is a great book. I've only worked my way about 1/2 way through it so far, but it gives a perfect balance of practical and theoretical background so real engineers can get real work done. For the areas it covers, this book is much more understandable than Oppenheim And Schafer. For the areas it doesn't cover, it's still more understandable though a little less informative. :-)
The great thing about this book is that it gives you pointers to real tools and real implementations for getting work done (i.e. lots of matlab examples, c examples, etc).
It's a bargain at twice the price.
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