Hence the number of frequencies to be selected must be judiciary decided. The same holds two for the other analysis technique i.e. Short Time Fourier analysis and wavelet analysis.
This needs a whole lot of fixin' on a whole lot of levels, and I know it's my job as editor to do that fixin' to the best of my non-science-brain ability. But I am beginning to think they "wrote" this book by dictating it into the very speech-recognition software that they are describing how to build (the subject of this particular chapter). Couldn't they have at least given the chapters a quick proofread before sending everything off to be published?
And on another note, I now have an image of the authors looking like Lili von Shtupp in Blazing Saddles, singing "Morning, noon, and night, it's dwink and dancing / Some quick womancing / And then a shower."