Sound Capture for Human Machine Interfaces: Practical by Wolfgang Herbordt

By Wolfgang Herbordt

With a consistently expanding hope for average and comfy human/machine interplay, the acoustic interface of any terminal for multimedia or telecommunication companies is challenged to permit seamless and hands-free audio communique. Sound catch for Human-Machine Interfaces introduces the sensible points of microphone array sign processing and offers quite a few mixtures of beamforming and acoustic echo cancellation.

Show description

Read Online or Download Sound Capture for Human Machine Interfaces: Practical Aspects of Microphone Array Signal Processing PDF

Best user experience & usability books

Ambient Intelligence

Ambient intelligence is the imaginative and prescient of a know-how that might turn into invisibly embedded in our usual atmosphere, current every time we want it, enabled through uncomplicated and easy interactions, attuned to all our senses, adaptive to clients and context-sensitive, and self reliant. high quality info entry and custom-made content material needs to be to be had to every person, anyplace, and at any time.

Cross-Word Modeling for Arabic Speech Recognition

Cross-Word Modeling for Arabic Speech reputation makes use of phonological principles with a view to version the cross-word challenge, a merging of adjoining phrases in speech brought on by non-stop speech, to reinforce the functionality of continuing speech popularity platforms. the writer goals to supply an knowing of the cross-word challenge and the way it may be shunned, particularly targeting Arabic phonology utilizing an HHM-based classifier.

Sustainable Web Ecosystem Design

This publication is ready the method of making web-based structures (i. e. , web content, content material, and so forth. ) that think of all the elements, the modules, the organisms – binary or another way – that make up a balanced, sustainable net atmosphere. within the present media-rich surroundings, an internet site is greater than a set of relative html records of textual content and pictures on a static computing device desktop computer screen.

Augmented and Virtual Reality: Second International Conference, AVR 2015, Lecce, Italy, August 31 - September 3, 2015, Proceedings

This booklet constitutes the refereed complaints of the second one overseas convention on Augmented and digital fact, AVR 2015, held in Lecce, Italy, in September 2015. The 32 papers and eight brief papers offered have been conscientiously reviewed and chosen from eighty two submissions. The SALENTO AVR 2015 convention brings jointly a group of researchers from academia and undefined, machine scientists, engineers, and physicians with the intention to proportion issues of perspectives, wisdom, reviews, and clinical and technical effects concerning state of the art ideas and applied sciences on digital and augmented fact purposes for drugs, cultural historical past, schooling, commercial sectors, in addition to the demonstration of complicated items and applied sciences.

Extra resources for Sound Capture for Human Machine Interfaces: Practical Aspects of Microphone Array Signal Processing

Sample text

Finally, the influence of the beamformer properties on the array geometry is discussed in Sect. 4. 1 Concept of Beamforming The sensor signals xm (k) are obtained by spatial and temporal sampling of the propagating wave fields by a sensor array. 2 Space-Time Filtering with Sensor Arrays 49 focusses the array on the desired source in order to separate signals from different directions, which generally have overlapping frequency content. In our scenario, the desired signal should be extracted while interference-plusnoise should be suppressed.

The relation with MMSE optimization for wide-sense ergodic signals in the DTFT domain is shown. In Sect. 2, we illustrate typical applications of optimum linear filters as they are discussed in this work. The realization using adaptive algorithms is discussed in Chap. 7. , [Ste73, LH74, GvL89, Hay96, MIK00]. Compared to the existing literature, where generally singleinput single-output (SISO) or multiple-input single-output (MISO) systems are discussed, we formally extend the description of optimum linear filters to the MIMO case based on [BBK03].

Common zeroes do not need to be modeled by W(k), and, thus, can be eliminated before applying the described method. Especially, for G (k) = G(k), the modeling filters simplify to unit impulses. The desired response of the system G (k) between input p and output p is denoted by the column vector gp ,p (k) of length Ng , [G (k)]p ,p = gp ,p (k) . 38) where G (k) is of size Ng P × P . 39) , .. . .   . . 0 · · · gp ,m (k) ˜ and captured in an (Ng + N − 1)P × M N matrix G(k) as ˜ [G(k)] p ,m = Gp ,m (k) .

Download PDF sample

Rated 4.54 of 5 – based on 31 votes