Digital signal processing continues to be of importance in fields as diverse as communications, radar, seismology, sonar, biomedicine, data analysis and aerospace. Some of the main problems of digital signal processing are identified in this book and interpreting the results of signal processing are detailed. Principles, applications and design methods are illustrated using a range of computer programs which have been translated into C for this edition. The accompanying disk provides a graphic display of the results of processing example signals and allows the reader to experiment with the programs.
This is currently my favorite DSP book. While it has the relevant equations, it spends much more time explaining why things are the way they are and what the equations mean.
Note that I believe (and follow) the meanings Goodreads gives for what each number of stars means. Therefore, the majority of my ratings are 3 stars ("liked it").