Automatic Speech Recognition – a Brief History of the Technology Development B.H
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The Early Years of the Acoustic Phonograph Its Developmental Origins and Fall from Favor 1877-1929
THE EARLY YEARS OF THE ACOUSTIC PHONOGRAPH ITS DEVELOPMENTAL ORIGINS AND FALL FROM FAVOR 1877-1929 by CARL R. MC QUEARY A SENIOR THESIS IN HISTORICAL AMERICAN TECHNOLOGIES Submitted to the General Studies Committee of the College of Arts and Sciences of Texas Tech University in Partial Fulfillment of the Requirements for the Degree of BACHELOR OF GENERAL STUDIES Approved Accepted Director of General Studies March, 1990 0^ Ac T 3> ^"^^ DEDICATION No. 2) This thesis would not have been possible without the love and support of my wife Laura, who has continued to love me even when I had phonograph parts scattered through out the house. Thanks also to my loving parents, who have always been there for me. The Early Years of the Acoustic Phonograph Its developmental origins and fall from favor 1877-1929 "Mary had a little lamb, its fleece was white as snov^. And everywhere that Mary went, the lamb was sure to go." With the recitation of a child's nursery rhyme, thirty-year- old Thomas Alva Edison ushered in a bright new age--the age of recorded sound. Edison's successful reproduction and recording of the human voice was the end result of countless hours of work on his part and represented the culmination of mankind's attempts, over thousands of years, to capture and reproduce the sounds and rhythms of his own vocal utterances as well as those of his environment. Although the industry that Edison spawned continues to this day, the phonograph is much changed, and little resembles the simple acoustical marvel that Edison created. -
The Impact of New Technologies on the Development of Architecture Julia Walker
The Impact of New Technologies on the Development of Architecture Julia Walker A view of the history of architectural technology can help us understand the stakes involved in the construction of buildings of different periods, styles, and structural systems. It can also help clarify why certain forms arose at particular moments in history, at specific sites, and under specific conditions. In all eras and geographical locations, technological innovation has influenced the development of architecture. This innovation has taken various forms—sometimes manifesting as new materials, either manmade or natural, and sometimes as new design tools or structural methods. The practical necessities of any given moment determine the technology that will arise to suit these demands, whether it relates to shelter, fortification, or religious ideas. Technology has been used to solve practical problems, but also to create symbolic orders, such as the assertion of human will over natural forces that arose in prehistoric building. Since antiquity, architects have stressed the significance of such knowledge to their field; the Roman architect and theorist Marcus Vitruvius Pollio (see box text on p. 174), for example, was trained as an engineer and frequently underscored the importance of technological understanding to the execution of architecture. In fact, we see this theme repeated in architectural theory across the globe. The Manasara-silpasastra, a seventh- century Indian building manual named for its author (see box text on p. 273), and the Chinese treatise Yingzao Fashi by Li Jie, a Song Dynasty book of architectural standards (see box text on p. 435), likewise argue that no architect can prosper without a thorough technical education. -
Wireless Networks
SUBJECT WIRELESS NETWORKS SESSION 2 WIRELESS Cellular Concepts and Designs" SESSION 2 Wireless A handheld marine radio. Part of a series on Antennas Common types[show] Components[show] Systems[hide] Antenna farm Amateur radio Cellular network Hotspot Municipal wireless network Radio Radio masts and towers Wi-Fi 1 Wireless Safety and regulation[show] Radiation sources / regions[show] Characteristics[show] Techniques[show] V T E Wireless communication is the transfer of information between two or more points that are not connected by an electrical conductor. The most common wireless technologies use radio. With radio waves distances can be short, such as a few meters for television or as far as thousands or even millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of applications of radio wireless technology include GPS units, garage door openers, wireless computer mice,keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones. Somewhat less common methods of achieving wireless communications include the use of other electromagnetic wireless technologies, such as light, magnetic, or electric fields or the use of sound. Contents [hide] 1 Introduction 2 History o 2.1 Photophone o 2.2 Early wireless work o 2.3 Radio 3 Modes o 3.1 Radio o 3.2 Free-space optical o 3.3 -
Great Inventors of the Ancient World Preliminary Syllabus & Course Outline
CLA 46 Dr. Patrick Hunt Spring Quarter 2014 Stanford Continuing Studies http://www.patrickhunt.net Great Inventors Of the Ancient World Preliminary Syllabus & Course Outline A Note from the Instructor: Homo faber is a Latin description of humans as makers. Human technology has been a long process of adapting to circumstances with ingenuity, and while there has been gradual progress, sometimes technology takes a downturn when literacy and numeracy are lost over time or when humans forget how to maintain or make things work due to cataclysmic change. Reconstructing ancient technology is at times a reminder that progress is not always guaranteed, as when Classical civilization crumbled in the West, but the history of technology is a fascinating one. Global revolutions in technology occur in cycles, often when necessity pushes great minds to innovate or adapt existing tools, as happened when humans first started using stone tools and gradually improved them, often incrementally, over tens of thousands of years. In this third course examining the greats of the ancient world, we take a close look at inventions and their inventors (some of whom might be more legendary than actually known), such as vizier Imhotep of early dynastic Egypt, who is said to have built the first pyramid, and King Gudea of Lagash, who is credited with developing the Mesopotamian irrigation canals. Other somewhat better-known figures are Glaucus of Chios, a metallurgist sculptor who possibly invented welding; pioneering astronomer Aristarchus of Samos; engineering genius Archimedes of Siracusa; Hipparchus of Rhodes, who made celestial globes depicting the stars; Ctesibius of Alexandria, who invented hydraulic water organs; and Hero of Alexandria, who made steam engines. -
Speech Signal Basics
Speech Signal Basics Nimrod Peleg Updated: Feb. 2010 Course Objectives • To get familiar with: – Speech coding in general – Speech coding for communication (military, cellular) • Means: – Introduction the basics of speech processing – Presenting an overview of speech production and hearing systems – Focusing on speech coding: LPC codecs: • Basic principles • Discussing of related standards • Listening and reviewing different codecs. הנחיות לשימוש נכון בטלפון, פלשתינה-א"י, 1925 What is Speech ??? • Meaning: Text, Identity, Punctuation, Emotion –prosody: rhythm, pitch, intensity • Statistics: sampled speech is a string of numbers – Distribution (Gamma, Laplace) Quantization • Information Theory: statistical redundancy – ZIP, ARJ, compress, Shorten, Entropy coding… ...1001100010100110010... • Perceptual redundancy – Temporal masking , frequency masking (mp3, Dolby) • Speech production Model – Physical system: Linear Prediction The Speech Signal • Created at the Vocal cords, Travels through the Vocal tract, and Produced at speakers mouth • Gets to the listeners ear as a pressure wave • Non-Stationary, but can be divided to sound segments which have some common acoustic properties for a short time interval • Two Major classes: Vowels and Consonants Speech Production • A sound source excites a (vocal tract) filter – Voiced: Periodic source, created by vocal cords – UnVoiced: Aperiodic and noisy source •The Pitch is the fundamental frequency of the vocal cords vibration (also called F0) followed by 4-5 Formants (F1 -F5) at higher frequencies. -
Human Brain Evolution, Theories of Innovation, and Lessons
MAX-PLANCK-INSTITUT FÜR WISSENSCHAFTSGESCHICHTE Max Planck Institute for the History of Science 2004 PREPRINT 254 Alfred Gierer Human Brain Evolution, Theories of Innovation, and Lessons from the History of Technology Human Brain Evolution, Theories of Innovation, and Lessons from the History of Technology1 Alfred Gierer Max-Planck-Institute for Developmental Biology, T¨ubingen Abstract Biological evolution and technological innovation, while differing in many respects, also share common features. In particular, the implementation of a new technology in the market is analogous to the spreading of a new genetic trait in a population. Technological innovation may occur either through the accumulation of quantitative changes, as in the development of the ocean clipper, or it may be initiated by a new combination of features or subsystems, as in the case of steamships. Other examples of the latter type are electric networks that combine the generation, distribution, and use of electricity, and containerized transportation that combines standardized containers, logistics, and ships. Biological evolution proceeds, phenotypically, in many small steps, but at the genetic level novel features may arise not only through the accumulation of many small, common mutational changes, but also when dis- tinct, relatively rare genetic changes are followed by many further mutations. New evolutionary directions may be initiated by, in particular, some rare combinations of regulatory sections within the genome. The combinatorial type of mechanism may not be a logical prerequisite for bio- logical innovation, but it can be efficient, especially when novel features arise out of already highly developed systems. Such is the case with the evolution of general, widely applicable capabilities of the human brain. -
Benchmarking Audio Signal Representation Techniques for Classification with Convolutional Neural Networks
sensors Article Benchmarking Audio Signal Representation Techniques for Classification with Convolutional Neural Networks Roneel V. Sharan * , Hao Xiong and Shlomo Berkovsky Australian Institute of Health Innovation, Macquarie University, Sydney, NSW 2109, Australia; [email protected] (H.X.); [email protected] (S.B.) * Correspondence: [email protected] Abstract: Audio signal classification finds various applications in detecting and monitoring health conditions in healthcare. Convolutional neural networks (CNN) have produced state-of-the-art results in image classification and are being increasingly used in other tasks, including signal classification. However, audio signal classification using CNN presents various challenges. In image classification tasks, raw images of equal dimensions can be used as a direct input to CNN. Raw time- domain signals, on the other hand, can be of varying dimensions. In addition, the temporal signal often has to be transformed to frequency-domain to reveal unique spectral characteristics, therefore requiring signal transformation. In this work, we overview and benchmark various audio signal representation techniques for classification using CNN, including approaches that deal with signals of different lengths and combine multiple representations to improve the classification accuracy. Hence, this work surfaces important empirical evidence that may guide future works deploying CNN for audio signal classification purposes. Citation: Sharan, R.V.; Xiong, H.; Berkovsky, S. Benchmarking Audio Keywords: convolutional neural networks; fusion; interpolation; machine learning; spectrogram; Signal Representation Techniques for time-frequency image Classification with Convolutional Neural Networks. Sensors 2021, 21, 3434. https://doi.org/10.3390/ s21103434 1. Introduction Sensing technologies find applications in detecting and monitoring health conditions. -
ARSC Journal, Vol
EDISON AND GROWING HOSTILITIES1 By Raymond Wile The spring of 1878 witnessed a flurry of phonographic activity at the Edison laboratories. Caveats were filed with the United States Patent Office, and Prelimi nary Specifications were filed on April 24, 1878 which resulted in the eventual issuance of a British patent.2 Despite this initial activity, the Edison involvement rapidly wound down by the end of that summer. In September a fatal mistake occurred-final specifications were supplied for the British patent, but the equiva lent American applications were neglected. In December, an attempt was made to rectify the omission by predating a series of applications, but the U.S. Patent Office refused to allow this and the matter had to be dropped. Except for a patent applied for on March 29, 1879 and granted in 1880 the phonograph seems to have been completely abandoned by Edison in favor of his new interest in the electric light.3 During the first half of the eighties there is no evidence whatsoever of any phono graph activity emanating from Menlo Park. However, Edward H. Johnson, who had done much experimenting for the Edison Speaking Phonograph Company, did be come involved in some experimenting after his return from England in 1883-enough so for Bergmann and Company to bill the group for 192 1/2 hours of experimental work.4 Edison had become completely disenchanted and reasoned that the concept of the phonograph was incapable offurther developments. The members of the Edison Speak ing Phonograph Company were delighted to relieve Edison of the responsibility for further experimenting when he released them from the necessity of investing further capital. -
Designing Speech and Multimodal Interactions for Mobile, Wearable, and Pervasive Applications
Designing Speech and Multimodal Interactions for Mobile, Wearable, and Pervasive Applications Cosmin Munteanu Nikhil Sharma Abstract University of Toronto Google, Inc. Traditional interfaces are continuously being replaced Mississauga [email protected] by mobile, wearable, or pervasive interfaces. Yet when [email protected] Frank Rudzicz it comes to the input and output modalities enabling Pourang Irani Toronto Rehabilitation Institute our interactions, we have yet to fully embrace some of University of Manitoba University of Toronto the most natural forms of communication and [email protected] [email protected] information processing that humans possess: speech, Sharon Oviatt Randy Gomez language, gestures, thoughts. Very little HCI attention Incaa Designs Honda Research Institute has been dedicated to designing and developing spoken [email protected] [email protected] language and multimodal interaction techniques, Matthew Aylett Keisuke Nakamura especially for mobile and wearable devices. In addition CereProc Honda Research Institute to the enormous, recent engineering progress in [email protected] [email protected] processing such modalities, there is now sufficient Gerald Penn Kazuhiro Nakadai evidence that many real-life applications do not require University of Toronto Honda Research Institute 100% accuracy of processing multimodal input to be [email protected] [email protected] useful, particularly if such modalities complement each Shimei Pan other. This multidisciplinary, two-day workshop -
A Vocoder (Short for Voice Encoder) Is a Synthesis System, Which Was
The Vocoder Thomas Carney 311107435 Digital Audio Systems, DESC9115, Semester 1 2012 Graduate Program in Audio and Acoustics Faculty of Architecture, Design and Planning, The University of Sydney A vocoder (short for voice encoder) is Dudley's breakthrough device a synthesis system, which was initially analysed wideband speech, developed to reproduce human converted it into slowly varying control speech. Vocoding is the cross signals, sent those over a low-band synthesis of a musical instrument with phone line, and finally transformed voice. It was called the vocoder those signals back into the original because it involved encoding the speech, or at least a close voice (speech analysis) and then approximation of it. The vocoder was reconstructing the voice in also useful in the study of human accordance with a code written to speech, as a laboratory tool. replicate the speech (speech synthesis). A key to this process was the development of a parallel band pass A Brief History filter, which allowed sounds to be The vocoder was initially conceived filtered down to a fairly specific and developed as a communication portion of the audio spectrum by tool in the 1930s as a means of attenuating the sounds that fall above coding speech for delivery over or below a certain band. By telephone wires. Homer Dudley 1 is separating the signal into many recognised as one of the father’s of bands, it could be transmitted easier the vocoder for his work over forty and allowed for a more accurate years for Bell Laboratories’ in speech resynthesis. and telecommunications coding. The vocoder was built in an attempt to It wasn’t until the late 1960s 2 and save early telephone circuit early 1970s that the vocoder was bandwidth. -
Notes by Charles Sumner Tainter, October 23, 1881, with Transcript
Library of Congress Notes by Charles Sumner Tainter, October 23, 1881, with transcript Copied from pages 97 to 113 inclusive in Laboratory Rough Notes, Vol. XIII. Folder, Graphophone, The Graphophone. 1879–99 Sunday Oct. 23d, 1881. drawer 12 The following is a copy of a portion of the written matter contained in the sealed package marked “Package No. 1. V. L. A.” which was deposited in the Smithsonian Institution October 20th 1881.— Sumner Tainter. (Inscription upon outside cover of Package.—) Washington, D. C. October 20th 1881. Package No. 1. V. L. A. Deposited in the Smithsonian Institution on the 20th day of October 1881 by the undersigned, on behalf of Alexander Graham Bell, Sumner Tainter, and Chichester A. Bell. (signed) Sumner Tainter. Chichester A. Bell. (Portion of written matter inside Package.—) We, Alexander Graham Bell; Sumner Tainter; and Chichester A. Bell, having associated ourselves together for the joint prosecution of inventions and experiments, desire to put on record a process and apparatus which we have devised for recording sound-vibrations, and for reproducing the sounds from the record, without deterioration of the record itself. Notes by Charles Sumner Tainter, October 23, 1881, with transcript http://www.loc.gov/resource/magbell.25100201 Library of Congress For some months previous to the present date (September 1881) our invention has been practically perfected, but we still withhold publication in the hope that our continued efforts may result in a more simple form of apparatus, adapted for popular use. The possibility of reproducing the sounds of articulate speech from a record was demonstrated several years ago by the construction of the Edison Phonograph, but 2 the articulation of the instrument was, at best, very imperfect and disagreeable; and the indented tinfoil record soon became deteriorated by use, so that the words impressed upon it ceased to be reproduced after a very few repetitions. -
Inventing Television: Transnational Networks of Co-Operation and Rivalry, 1870-1936
Inventing Television: Transnational Networks of Co-operation and Rivalry, 1870-1936 A thesis submitted to the University of Manchester for the degree of Doctor of Philosophy In the faculty of Life Sciences 2011 Paul Marshall Table of contents List of figures .............................................................................................................. 7 Chapter 2 .............................................................................................................. 7 Chapter 3 .............................................................................................................. 7 Chapter 4 .............................................................................................................. 8 Chapter 5 .............................................................................................................. 8 Chapter 6 .............................................................................................................. 9 List of tables ................................................................................................................ 9 Chapter 1 .............................................................................................................. 9 Chapter 2 .............................................................................................................. 9 Chapter 6 .............................................................................................................. 9 Abstract ....................................................................................................................