Acoustical Analysis of a Test Horn PDF Download
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Author: Young In Moon
Publisher:
ISBN:
Category : Acoustics
Languages : en
Pages : 40
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Book Description
The natural frequencies and mode shapes for three models of a small test horn are determined using the 3-D acoustic finite element computer program COMIC (COMplex AcoustIC Pressure Analysis). The mode shapes are presented graphically and nodal planes are identified. Placing a wall of blocks and a missile inside the model does not make any significant change in natural frequencies, although the nodal planes have moved in the direction of the added elements.
Author: Young In Moon
Publisher:
ISBN:
Category : Acoustics
Languages : en
Pages : 40
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Book Description
The natural frequencies and mode shapes for three models of a small test horn are determined using the 3-D acoustic finite element computer program COMIC (COMplex AcoustIC Pressure Analysis). The mode shapes are presented graphically and nodal planes are identified. Placing a wall of blocks and a missile inside the model does not make any significant change in natural frequencies, although the nodal planes have moved in the direction of the added elements.
Author: Young In Moon
Publisher:
ISBN:
Category : Acoustics
Languages : en
Pages : 28
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Book Description
The natural frequencies and mode shapes for three models of a small test horn are determined using the 3-D acoustic finite element computer program COMIC (COMplex AcoustIC Pressure Analysis). The mode shapes are presented graphically and nodal planes are identified. Placing a wall of blocks and a missile inside the model does not make any significant change in natural frequencies, although the nodal planes have moved in the direction of the added elements.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
The natural frequencies and mode shapes for three models of a small test horn are determined using the 3-D acoustic finite element computer program COMIC (COMplex AcoustIC Pressure Analysis). The mode shapes are presented graphically and nodal planes are identified. Placing a wall of blocks and a missile inside the model does not make any significant change in natural frequencies, although the nodal planes have moved in the direction of the added elements. Keywords: Finite elements; Acoustic horn.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 518
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Book Description
Author: Glen Ballou
Publisher: Taylor & Francis
ISBN: 1136122532
Category : Technology & Engineering
Languages : en
Pages : 1738
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Book Description
Handbook for Sound Engineers is the most comprehensive reference available for audio engineers. All audio topics are explored: if you work on anything related to audio you should not be without this book! The 4th edition of this trusted reference has been updated to reflect changes in the industry since the publication of the 3rd edition in 2002 -- including new technologies like software-based recording systems such as Pro Tools and Sound Forge; digital recording using MP3, wave files and others; mobile audio devices such as iPods and MP3 players. Over 40 topics are covered and written by many of the top professionals for their area in the field, including Glen Ballou on interpretation systems, intercoms, assistive listening, and image projection; Ken Pohlmann on compact discs and DVDs; David Miles Huber on MIDI; Dr. Eugene Patronis on amplifier design and outdoor sound systems; Bill Whitlock on audio transformers and preamplifiers; Pat Brown on fundamentals and gain structures; Ray Rayburn on virtual systems and digital interfacing; and Dr. Wolfgang Ahnert on computer-aided sound system design and acoustics for concert halls.
Author: John Foreman
Publisher: Springer Science & Business Media
ISBN: 1468466771
Category : Technology & Engineering
Languages : en
Pages : 473
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Book Description
This book has been written to provide an intro Chapter 2 deals with the mechanism of hear duction to the fundamental concepts of sound ing and the subjective rating of sound, includ and a comprehensive coverage whereby un ing age-related and noise-induced hearing loss. wanted sound (noise) can be controlled. Al Assessment of any noise problem involves a though there are many notable textbooks which knowledge of the instrumentation available for deal primarily with the physics (or theory) of measurements, the limitations of this instru sound, and others which treat noise control in mentation, the appropriate procedures for mak a strictly practical (and sometimes even empir ing the measurements with the instrumentation, ical) manner, there are few textbooks that pro and the methods by which the measured data vide a bridging between the necessary under can be analyzed. Chapter 3 provides an up-to standing of the fundamentals of sound (its date coverage of these requirements, including generation, propagation, measurement) and the a section on one of the newest and most valu application of these fundamentals to its control. able tools in noise studies-sound intensity This book provides that link. measurement. The capability of being able to The text presents noise control primarily at measure sound intensity as compared with con the introductory level.
Author: Asoke Kumar Datta
Publisher: Springer
ISBN: 981132610X
Category : Technology & Engineering
Languages : en
Pages : 165
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Book Description
This book addresses the acoustic signal analysis and spectral dynamics of the tanpura, an Indian plucked string instrument. In addition, it strives to provide a logical and objective explanation of Indian classical musicians’ cognitive experience. Issues of relevance in this regard include the rich, mellifluous sound; the undulation of the loudness; the somewhat cyclical variation of the timbre, which is strongly related to these undulations; and the occasional perception of virtual notes to which no strings are tuned. The book analyses the materials used in the tanpura, the instrument’s simple structure, the intricacies of the lower bridge, and the theory of string vibration with variable string length. Cognitive experiments to provide the basis for perceptual quality assessment, as well as a methodology for ranking, are described. This is followed by acoustic analyses, both temporal and spectral, for sounds produced by male and female tanpuras, for each individual string and the combined one. An important aspect related to the naturalness of perceived sound, namely the intrinsically associated random perturbations, is also discussed. The apparent irregularities perceived in the acoustic signal produced by the tanpura reveal the importance of examining the signal from the perspective of non-linear analysis, an aspect that is also covered in the book. Given its scope, the book will appeal to students and researchers in the fields of music acoustics, artificial intelligence, and cognitive science, as well as musicians and musicologists around the world.
Author: Leo E. Svitavsky
Publisher:
ISBN:
Category : Horn (Musical instrument)
Languages : en
Pages : 51
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Book Description
Author: Daniel Ross Tengelsen
Publisher:
ISBN:
Category :
Languages : en
Pages : 160
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Book Description
Two numerical techniques, the boundary-element method (BEM) and the finite-difference method (FDM), are used for simulating the radiation from horn-loaded compression drivers and from an infinitely-baffled, finite-length pipe. While computations of the horn-loaded compression driver are in steady state, transient analysis of the finite-length pipe is studied as a precursor to transient analysis within the horn-loaded compression driver. BEM numerical simulations show promise for the development of new designs. Numerical simulations serve as a good tool for time and cost-effective prototyping as poor designs are detected before they are built.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 828
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Book Description
