Akustisk teknologi og lydteknik

How sound leaves a fundamental imprint on who we are.Making sense of sound is one of the hardest jobs we ask our brains to do. In Of Sound Mind, Nina Kraus examines the partnership of sound and brain, showing for the first time that the processing of sound drives many of the brain's core functions. Our hearing is always on--we can't close our ears the way we close our eyes--and yet we can ignore sounds that are unimportant. We don't just hear; we engage with sounds. Kraus explores what goes on in our brains when we hear a word--or a chord, or a meow, or a screech. Our hearing brain, Kraus tells us, is vast. It interacts with what we know, with our emotions, with how we think, with our movements, and with our other senses. Auditory neurons make calculations at one-thousandth of a second; hearing is the speediest of our senses. Sound plays an unrecognized role in both healthy and hurting brains. Kraus explores the power of music for healing as well as the destructive power of noise on the nervous system. She traces what happens in the brain when we speak another language, have a language disorder, experience rhythm, listen to birdsong, or suffer a concussion. Kraus shows how our engagement with sound leaves a fundamental imprint on who we are. The sounds of our lives shape our brains, for better and for worse, and help us build the sonic world we live in.

Artificial Intelligence and Music Ecosystem highlights the opportunities and rewards associated with the application of AI in the creative arts.

This book provides a captivating journey through the realms of classical and quantum systems as it unravels the profound influence that noise may have on their static and dynamic properties. The first part of the book offers succinct yet enlightening discussions on foundational topics related to noise. The second part focuses on a variety of applications, where a diverse spectrum of noise effects in physical systems comes to life, meticulously presented and thoughtfully analyzed. Whether you are a curious student or a dedicated researcher, this book is your key to gaining invaluable insights into noise effects in physical systems. ¿The book has the merit of presenting several topics scattered in the literature and could become a very useful reference.¿ Giovanni Jona-Lasinio, Sapienza ¿ Università di Roma, Italy

Railway Noise and Vibration: Mechanisms, Modelling, and Means of Control, 2nd Edition provides a complete overview of the state of the art in rail noise and vibration theory and modelling. This book describes each source of noise and vibration, such as rolling noise, curve squeal, bridge noise, aerodynamic noise, ground vibration and ground-borne noise, and vehicle interior noise in a systematic way, covering relevant theoretical modelling approaches and their practical implementation, with extensive examples of noise control technology applied at source. Noise and vibration are key obstacles to further development of railway networks worldwide for high-speed intercity traffic, freight and suburban metros and light-rail systems. With noise problems all too often dealt with inefficiently due to a lack of understanding of the problem, this new edition is an invaluable reference for all those working with noise and vibration from railways, whether in industry, consultancy, or academic research.

This book unveils the most advanced techniques and innovative applications in the natural language processing (NLP) field. It uncovers the secrets to enhancing language understanding, and presents practical solutions to different NLP tasks, as text augmentation, paraphrase generation, and restoring spaces and punctuation in multiple languages. It unlocks the potential of hierarchical multi-task learning for cross-lingual phoneme recognition, and allows readers to explore more real-world applications such as error correction, aggregating industrial security findings as well as predicting music emotion values from social media conversations. "Practical Solutions for Diverse Real-World NLP Applications" is the suitable guidebook for researchers, students, and practitioners as it paves the way for them by delivering invaluable insights and knowledge.

This problem book is a companion volume to the 2nd edition of the book "Building Physics: From Physical Principles to International Standards". The primary book offers a comprehensive presentation of the most important phenomena in building physics: heat transfer, moisture/humidity, sound/acoustics and illumination. The problem book includes both problems and solutions. Most of the problems are as practical as possible, while remaining conceptual and avoiding overreach. Many of the solutions presented do not simply end upon determination of the correct answer, but include further explanations for a deeper understanding of the theory and/or connections to other everyday phenomena. These explanations can be of great value to lecturers who use the primary book for their courses. All solutions are cross-referenced to the formulas or explanations in the primary book. This establishes the connection between theory and practice and contributes to a more thorough understanding of the subject. The book is primarily intended for lecturers and students of all subjects related to building physics.

This book provides an analysis of acoustic features of polysemous strings and an implementation of a speech disambiguation program based on the phonetic information. Throughout the book, the term ¿polysemous string¿ refers to idioms with plausible literal interpretations, restrictive and non¿restrictive relative clauses, and the same expressions used as quotations and appearing in a non¿quotational context. The author explains how, typically, context is sufficient to determine the intended meaning. But there is enough evidence in psycholinguistic and phonetic literature to suspect that these superficially identical strings exhibit different acoustic features. In the experiment presented in the book, the participants were asked to read short excerpts containing corresponding elements of polysemous strings placed in the same intonational position. The acoustic analyses of ditropic pairs and subsequent statistical tests revealed that there is almost no difference in the duration, pitch, or intensity in literal and figurative interpretations. However, the analysis of relative clauses and quotations demonstrated that speakers are more likely to use acoustic cues to differentiate between the two possible readings. The book argues that the acoustic analysis of polysemous phrases could be successfully implemented in designing automatic speech recognition systems in order to improve their performance in disambiguating polysemous phrases.Analyzes acoustic features of polysemous strings and an implementation of a speech disambiguation programIncludes evidence that superficially identical strings exhibit different acoustic featuresArgues that acoustic analysis of polysemous phrases can be successfully implemented in automatic speech recognition

This influential work of acoustics explores the theory behind weak shock waves and their propagation in various media. Written by a leading expert in the field, Keller's book is an indispensable resource for acousticians and researchers alike.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 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.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.

"Introducing the state-of-the-art of hypervelocity shock tunnels, this complete reference features a variety of drivers and step-by-step introductions to their theories, physics, methods and testing. This book enables researchers and engineers in aerospace to design and improve wind tunnels that simulate flow qualities of real hypersonic flyers"--

This updated, augmented third edition is aimed at hobbyists, students, engineers, and others who would like to learn more about the design and operation of electronic circuits used by guitarists. This book presents accessible qualitative and quantitative descriptions and analysis of a wide range of popular amplifier and effects circuits, along with basic design techniques allowing the reader to design their own circuits. The new edition further includes several additional circuits and topics suggested by readers of the previous editions, including noise gates, analog multipliers, the effects loop,  and additional tube amplifier design examples. 

This book collects original peer-reviewed papers describing the latest developments in railway noise and vibration from the 14th International Workshop on Railway Noise (IWRN14), held on 7¿9 December 2022, in Shanghai, China. It covers a broad range of railway noise and vibration topics, including high-speed rail and aerodynamic noise, wheel and rail noise, curving squeal noise, bridge noise, vehicle interior noise, structure-borne noise, and ground-borne vibration. Further topics such as resilient track forms, wheel out-of-round and polygonalization, rail roughness, corrugation and grinding, etc. are also covered. With the extensive and timely information offered, this book helps scientists and engineers in their daily efforts to identify, understand, and solve problems related to railway noise and vibration and to achieve the ultimate goal of minimizing the environmental impact of railway systems.

 This book provides an overview of Fetal Medicine practice focusing on various aspects of fetal health such as screening for fetal aneuploidies and imaging for fetal anomalies, their basic management and technological breakthroughs.Although the field of Fetal Medicine is very wide, this book has condensed the important issues and is written in an "e; easy to read"e; format to simplify concepts for the readers. Fetal Medicine has emerged as a separate specialization and has an interdisciplinary appeal for clinicians. With the advent of knowledge and awareness in this field there are emerging challenges in counseling patients regarding available options. This book aims to be a ready reference for clinicians in Obstetrics and Radiology who encounter patients with fetal anomalies, growth disorders, multiple pregnancies and genetic /chromosomal problems. This is a highly informative and carefully presented book providing insights for clinicians with an interest in Fetal Medicine

This book derives physical models from basic principles, studies the effect of equivalent models on the dynamic characteristics of phononic crystals and acoustic metamaterials, and analyzes the physical mechanisms behind vibration and noise reduction. It first summarizes the research status of vibration and noise reduction, and research progress in phononic crystals and acoustic metamaterials. Based on this, one-dimensional periodic beam, two-dimensional thin plate with circular hole, and corresponding gradient structures are introduced, and their dynamic characteristics are discussed in detail. Therefore, different equivalent methods for different models are proposed through theoretical analysis, modal analysis and transmission rate analysis. Finally, a Helmholtz-type acoustic metamaterial, i.e. a multi-layer slotted tube acoustic metamaterial, is studied. Aiming at the low-frequency band gap of this model, a theoretical model for solving the inverse problem of acousto-electric analogue equivalent is proposed, and the effect of structural parameters on the low-frequency band gap is studied using this equivalent model. This book closely revolves around how to conduct equivalent research on artificially fabricated periodic structures. The methods and conclusions presented in this book provide a new theoretical basis for the application of artificial woven periodic structures in the field of low-frequency vibration reduction and noise reduction and are also an innovation in the discipline of vibration and noise control. This book is suitable for undergraduate students, graduate students and teachers in vibration and noise majors in universities, and can also provide references for engineering and technical personnel in related fields.