000			04075cam a22003734a 4500
999			_c6869 _d6869
001			11767560
003			OSt
005			20200205114441.0
008			990719s2000 nyua b 001 0 eng
010			_a 99040962
020			_a038798951X (hard cover : alk. paper)
035			_a(DLC) 99040962
040			_aDLC _cDLC _dDLC
042			_apcc
050	0	0	_aTD892 _b.S58 2000
082	0	0	_a620.23 SNY _221
100	1		_aSnyder, Scott D.
245	1	0	_aActive noise control primer / _cScott D. Snyder.
260			_aNew York : _bAIP Press : _bSpringer, _cc2000.
300			_axiii, 159 p. : _b75 ill. ; _c25 cm.
490	1		_aModern acoustics and signal processing
504			_aIncludes bibliographical references and index.
505			_a1. Introduction.- Welcome to the World of Active Noise Control!.- Summary.- Do I Have to Read the Whole Book?.- What Is Active Noise Control?.- Adaptive Feedforward Active Control Noise.- Advanced Reading.- 2. Background: Fundamentals of Sound.- What Is Sound?.- What Is Noise?.- Quantifying Sound Levels.- Sound Waves.- Frequency Analysis.- Sine Waves.- Fourier Analysis.- Harmonics.- 1. Anything that Rotates.- 2. Many Devices Which Use Mains Electricity.- 3. Devices Which Are Driven Beyond Their Capabilities.- Human Perception of Sound.- Acceptable Sound Levels.- 3. Fundamentals of Noise Control.- Prerequisite Discussion: Power and Impedance.- The Magnitude of Acoustic Power.- Decibel Units for Acoustic Power.- Power, Pressure, and Hearing Loss.- Real and Imaginary Impedancec.- What Is Noise Control?.- What Is Passive Noise Control.- What is Active Noise Control?.- 4. Free Space Noise Control.- Passive Noise Control Approaches.- Control Control Approaches.- 5. Enclosed Space Noise Control.- Where Does the Sound Come From?.- How Does the Sound Get Out Again?.- How Does the Sound Field Arrange Itself?.- Passive Noise Control Approaches.- Active Noise Control Approaches.- 6. Control of Sound Propagation in Ducts.- Sound Fields in Ducts.- Modes in Ducts.- Impedance in Ducts.- Passive Noise Control Approaches.- Sidebranch Resonator.- Expansion Chamber.- Helmholtz Filter.- Dissipative Passive Control Techniques.- Active Noise Control Approaches.- Reference and Error Signal Quality.- Reference Sensor/Control Source Separation Distance.- Control Source Position in the Duct.- Duct Response Characteristics.- 7. Active Noise Controller Overview.- Some Important Facts.- Digital System Requirements.- Controller Output (Digital Control Filter) Requirements.- Adaptive Algorithm Requirements.- 8. Controller Fundamentals.- General Control System Outlines and Definitions.- Physical System Limitations.- Interfacing a Digital System.- Background.- Required Additions for Digital Control.- Overview of the Controller.- Controller Component 1: The Digital Filter.- What Is a Digital Filter?.- Specifying the "Appropriate" Digital Filter.- Specifying the Digital Filter Length.- Controller Component 2: The Adaptive Algorithm.- Background: Making Use of Adaptive Signal Processing.- Gradient Descent Algorithms.- Evaluating the Gradient.- The Convergence Coefficient.- Quantization Errors and Leakage.- Slowing Down the Algorithm to Improve Performance.- Controller Component 3: Cancellation Path Modeler.- Selecting the Sample Rate.- So What Is the Optimum Sample Rate?.
650		0	_aNoise control.
650		0	_aAcoustical engineering.
650		0	_aActive noise and vibration control.
830		0	_aAIP series in modern acoustics and signal processing
856	4	2	_3Publisher description _uhttp://www.loc.gov/catdir/enhancements/fy0816/99040962-d.html
856	4	1	_3Table of contents only _uhttp://www.loc.gov/catdir/enhancements/fy0816/99040962-t.html
906			_a7 _bcbc _corignew _d1 _eocip _f19 _gy-gencatlg
942			_2ddc _cRFT