Environmental Acoustic Transfer Functions and Filtering Acoustic Signals

<p>When dealing with acoustic signals the environment in which the signal propagates affects the signal in measurable ways. These effects lead to echoes changes in amplitude and sometimes a confluence of other signals which may render the signal useless in terms of information retrieval. When considering acoustics in terms of pressure changes due to the driving signal we are able to model and measure the effects of the environment on a given signal. Once this model is known we are able to completely invert the environmental transfer enacted on the signal and filter out other signals as long as some assumptions are held in the implementation of this procedure.</p><p>This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact and remains as true to the original work as possible. Therefore you will see the original copyright references library stamps (as most of these works have been housed in our most important libraries around the world) and other notations in the work.</p><p>This work is in the public domain in the United States of America and possibly other nations. Within the United States you may freely copy and distribute this work as no entity (individual or corporate) has a copyright on the body of the work.</p><p>As a reproduction of a historical artifact this work may contain missing or blurred pages poor pictures errant marks etc. Scholars believe and we concur that this work is important enough to be preserved reproduced and made generally available to the public. We appreciate your support of the preservation process and thank you for being an important part of keeping this knowledge alive and relevant.</p>