- Paperback: 480 pages
- Publisher: W3K Publishing (October 8, 2007)
- Language: English
- ISBN-10: 0974560715
- ISBN-13: 978-0974560717
- Product Dimensions: 6 x 1.1 x 9 inches
- Shipping Weight: 1.8 pounds (View shipping rates and policies)
- Average Customer Review: 10 customer reviews
- Amazon Best Sellers Rank: #798,969 in Books (See Top 100 in Books)
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Introduction to Digital Filters: with Audio Applications
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About the Author
Julius O. Smith is a research engineer and musician devoted to developing new technologies for music. He received the B.S.E.E. degree from Rice University, Houston, TX, in 1975 (Control, Circuits, and Communication). He received the M.S. and Ph.D. degrees in E.E. from Stanford University, Stanford, CA, in 1978 and 1983, respectively. His Ph.D. research was devoted to improved methods for digital filter design and system identification applied to music and audio systems. From 1975 to 1977 he worked in the Signal Processing Department at ESL, Sunnyvale, CA, on systems for digital communications. From 1982 to 1986 he was with the Adaptive Systems Department at Systems Control Technology, Palo Alto, CA, where he worked in the areas of adaptive filtering and spectral estimation. From 1986 to 1991 he was employed at NeXT Computer, Inc., responsible for sound, music, and signal processing software for the NeXT computer workstation. After NeXT, he became an Associate Professor at the Center for Computer Research in Music and Acoustics (CCRMA) at Stanford, teaching courses and pursuing research related to signal processing techniques applied to music and audio systems. Continuing this work, he is presently a Professor of Music and Associate Professor of Electrical Engineering (by courtesy) at Stanford University. For more information, see http://ccrma.stanford.edu/~jos/.
Top customer reviews
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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
Filters Preserving Phase
Minimum Phase Filters
Elementary Audio Digital Filters
Laplace Transform Analysis
Matrix Filter Representations
State Space Filters
Linear Time Varying Filters
Recursive Digital Filter Design
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.
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!
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.
Fantastic resource. As already said this book is free online, but it is a kind of book to have in your library if you are interested in the subject.
I am very happy to have bought it.
Thanks to Professor Smith.
Most recent customer reviews
the equations are clearly stated and easy to follow.Read more