Audio Signal Processing for Next-Generation Multimedia by Yiteng (Arden) Huang, Jacob Benesty

By Yiteng (Arden) Huang, Jacob Benesty

I might say this publication is a 5 superstar e-book while you are a researcher in any of the next components: speech acquisition and enhancement, acoustic echo cancellation, sound resource monitoring and estimation, or audio coding and sound level illustration. the maths is especially transparent for this kind of educational books written through committee with a few sturdy examples. i actually do not know the place the "multimedia verbal exchange platforms" a part of the identify got here from, even though. Communications is rarely addressed during this booklet, so networking researchers and scholars should still glance somewhere else. when you are a DSP scholar attracted to audio sign processing ordinarily, this can be additionally now not the e-book for you. you'll be thoroughly stressed from web page 1 because the authors dive into really good DSP learn issues you weren't awaiting. in the event you fall into this final classification, my recommendation is to shop for a replica of "Discrete Time sign Processing second version" by means of Oppenheim, Schafer and dollar. ensure you comprehend it after which retain it round for a reference. Then purchase Zolzer's "Digital Audio sign Processing" for an excellent textual content at the and software program algorithms of audio DSP.

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5 dB. The two peaks in the plot represent the same maximum and only the order of the product of first-order sections used to represent the second-order response has changed. 0 dB; the contours are in 1 dB steps. 1 Second-Order Dipole. 17(a) shows the polar magnitude response for this array. 0 dB, and by symmetry the front-to-back ratio is 0 dB. The 3 dB beamwidth is 65°. 2 Second-Order Cardioid. 29) can be a cardioid. 9 dB. A more general form for a second-order array can be written as the product of a first-order array with that of a first-order cardioid.

Two designs that have been suggested are the second-order cardioid and the second-order hypercardioid [12, 15]. Another group of proposed differential microphones is a restricted class of equi-sidelobe designs for arbitrary order This section presents some of these designs as well as non-restricted equi-sidelobe designs and also a variety of second-order differential array designs based on common first-order microphones. 29). It is informative to plot the directivity index and front-to-back ratio as a function of the canonical values of and One can then easily visualize how these measures change for different second-order designs.

Given a first-order differential microphone with the directivity function, where is a constant, it is of interest to know how to combine two of these microphones so that the directivity index is maximized.

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