February 2007
Intermediate to advanced
464 pages
14h 40m
English
Content preview from Audio Signal Processing and Coding
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COMPUTER EXERCISE
11.10. Write MATLAB code to implement an IntMDCT. Profile the algorithm and compare the computational complexity against a standard MDCT.
Audio Signal Processing and Coding, by Andreas Spanias, Ted Painter, and Venkatraman AttiCopyright © 2007 by John Wiley & Sons, Inc.
1 Recall that in the stereo mode two audio channels that form a stereo pair (left and right) are encoded with one bitstream. On the other hand, in the dual mode, two audio channels with independent program contents, e.g., bilingual are encoded within one bitstream. However, the encoding process is the same for both modes [ISOI92].
2Note that c and s represent cos(α) and sin(α), where “α” corresponds to the angle of rotation of some arbitrary plane. In particular, the Givens rotation results in an orthogonal transformation without changing any of the norms of the vectors, X and Y.
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