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American company
Linear Acoustic is an American company based in Lancaster, Pennsylvania that develops technology and manufacturers equipment used by television stations
Linear_Acoustic
Represents speech as a combination of sound and linear filter
as a combination of a sound source, such as the vocal cords, and a linear acoustic filter, the vocal tract. While only an approximation, the model is
Source–filter_model
American audio equipment manufacturer
based on Livewire IP networking, an audio over Ethernet protocol. Linear Acoustic, whose product line includes TV loudness controls, metering and monitoring
Telos_Alliance
acoustic phase conjugation can be used to detect isoechogenic objects whose nonlinear parameters differ from that of the medium. The linear acoustic properties
Acoustic_phase_conjugation
Audio equipment company in Massachusetts, US
employees. The acoustic suspension woofer provided an elegant solution to the age-old problem of bass distortion in loudspeakers caused by non-linear, mechanical
Acoustic_Research
Opposition that a system presents to an acoustic pressure
system. For a linear time-invariant system, the relationship between the acoustic pressure applied to the system and the resulting acoustic volume flow
Acoustic_impedance
2010 United States legislation
Act "Linear Acoustic - Helping broadcasters achieve CALM Act compliance by providing loudness control, metering, and monitoring solutions". Linear Acoustic
Commercial Advertisement Loudness Mitigation Act
Commercial_Advertisement_Loudness_Mitigation_Act
Branch of acoustics
δ i j {\displaystyle (p-c_{0}^{2}\rho )\delta _{ij}} describes non-linear acoustic generation processes and finally the last term τ i j {\displaystyle
Aeroacoustics
Benign tumor of the vestibulocochlear cranial nerve
A vestibular schwannoma (VS), also called acoustic neuroma, is a benign tumor that develops on the vestibulocochlear nerve that passes from the inner ear
Vestibular_schwannoma
Branch of physics involving mechanical waves
acoustics Acoustic attenuation Acoustic emission Acoustic engineering Acoustic impedance Acoustic levitation Acoustic location Acoustic phonetics Acoustic streaming
Acoustics
Audible vibration that travels via pressure waves in matter
sensitive to audio frequencies ranging from 20 Hz to 20 kHz. More broadly, acoustic waves encompass mechanical longitudinal waves in general. Examples of the
Sound
Finding linear approximation of function at given point
mathematics, linearization (British English: linearisation) is finding the linear approximation to a function at a given point. The linear approximation
Linearization
Branch of physics and acoustics
This phenomenon is characteristic of a nonlinear system, since a linear acoustic system responds only to the driving frequency. This always occurs but
Nonlinear_acoustics
Quasiparticle of mechanical vibrations
energy. Acoustic phonons exhibit a linear relationship between frequency and phonon wave-vector for long wavelengths. The frequencies of acoustic phonons
Phonon
Type of activation function
context of artificial neural networks, the rectifier or ReLU (rectified linear unit) activation function is an activation function defined as the non-negative
Rectified_linear_unit
Acoustic non-reciprocal three-port device
Michael R.; Alù, Andrea (2014). "Sound Isolation and Giant Linear Nonreciprocity in a Compact Acoustic Circulator". Science. 343 (6170): 516–519. Bibcode:2014Sci
Acoustic_circulator
Type of electrical generator
(2024-10-17). "PERFORMANCE INDICATORS OF LINEAR ALTERNATORS AT DIFFERENT ELECTRICAL LOADS UNDER THERMO-ACOUSTIC-POWER-CONVERSION CONDITIONS". 24th International
Linear_alternator
Loudspeaker cabinet design
Acoustic suspension is a loudspeaker cabinet design that uses one or more loudspeaker drivers mounted in a sealed box. Acoustic suspension systems reduce
Acoustic_suspension
the acoustic frequencies that characterize the acoustic wave span a range from zero to 1/(pulse width). E.g., a 1 microsecond pulse produces acoustic frequencies
Thermoacoustic_imaging
Award for engineering development in television technology
conforming audio the ATSC digital TV standard Dolby Laboratories, Inc. Linear Acoustic, Inc. Enabling Standards for the delivery of television via broadband
Technology and Engineering Emmy Awards
Technology_and_Engineering_Emmy_Awards
Material designed to manipulate sound waves
electromagnetism—that enable acoustic wave manipulation. The Willis moduli couple stress to particle velocity and linear momentum to strain, and are named
Acoustic_metamaterial
Process where the effects of reverberation are removed from sound
sound has been picked up by microphones. Dereverberation is a subtopic of acoustic digital signal processing and is most commonly applied to speech but also
Dereverberation
Linguistic subfield studying speech sound
Acoustic phonetics is a subfield of phonetics, which deals with acoustic aspects of speech sounds. Acoustic phonetics investigates features of waveforms
Acoustic_phonetics
Medical imaging methodology
focused acoustic radiation force (ARF) from a linear ultrasound array.[citation needed] The Acoustic radiation force is a non-linear acoustical phenomenon
Shear_wave_elastography
Defunct pro audio manufacturer mainly known for its power amps
sealed-box speakers like the Acoustic Research AR3/AR3a.[citation needed] The second amplifier released was the Phase Linear 400 with 200 watts per channel
Phase_Linear
D. T.; Un, C. K. (Apr 1974). "Residual excited linear predictive coder". The Journal of the Acoustical Society of America. 55 (S1): S81. Bibcode:1974ASAJ
Residual-excited linear prediction
Residual-excited_linear_prediction
Phenomenon in physics
Acoustic streaming is a steady flow in a fluid driven by the absorption of high-amplitude acoustic oscillations. This phenomenon can be observed near sound
Acoustic_streaming
Equation for the propagation of sound waves through a medium
In physics, the acoustic wave equation is a second-order partial differential equation that governs the propagation of acoustic waves through a material
Acoustic_wave_equation
Local pressure deviation caused by a sound wave
In acoustics, sound pressure or acoustic pressure is the pressure difference between the ambient (average or equilibrium) atmospheric pressure and that
Sound_pressure
Cranial nerve for hearing and balance
cerebellopontine angle, and then goes with the 7th nerve through the internal acoustic meatus to the internal ear. The cochlear nerve travels away from the cochlea
Vestibulocochlear_nerve
Ultrasound imaging method
magnitude of the acoustic wave reflected by the microbubble do not have a linear relationship with the phase and magnitude of the excitatory acoustic wave. In
Acoustic_angiography
Electronic manipulation of audio signals
retrieval, speech processing, localization, acoustic detection, transmission, noise cancellation, acoustic fingerprinting, sound recognition, synthesis
Audio_signal_processing
Line from which something (air, noise, radiation, etc.) emanates
electromagnetic radiation that emanates from a linear (one-dimensional) geometry. The most prominent linear sources are roadway air pollution, aircraft air
Line_source
Mathematical model of how solid objects deform
Linear elasticity is a mathematical model of how solid objects deform and become internally stressed by prescribed loading conditions. It is a simplification
Linear_elasticity
Digital representation of sampled analog signals
patent granted in 1952. Linear pulse-code modulation (LPCM) is a specific type of PCM in which the quantization levels are linearly uniform. This is in contrast
Pulse-code_modulation
Visual representation of the spectrum of frequencies of a signal as it varies with time
instead of color or intensity. The frequency and amplitude axes can be either linear or logarithmic, depending on what the graph is being used for. Audio would
Spectrogram
Form of cryptanalysis
In cryptography, linear cryptanalysis is a general form of cryptanalysis based on finding affine approximations to the action of a cipher. Attacks have
Linear_cryptanalysis
Type of differential equation
PDE is called linear if it is linear in the unknown and its derivatives. For example, for a function u of x and y, a second order linear PDE is of the
Partial_differential_equation
Möbius transformation generalized to rings other than the complex numbers
In mathematics, a linear fractional transformation is, roughly speaking, an invertible transformation of the form z ↦ a z + b c z + d . {\displaystyle
Linear fractional transformation
Linear_fractional_transformation
Property of a mass in motion
Newtonian mechanics, momentum (pl.: momenta or momentums; more specifically linear momentum or translational momentum) is the product of the mass and velocity
Momentum
Type of functional equation (mathematics)
distinctions include whether the equation is ordinary or partial, linear or non-linear, and homogeneous or heterogeneous. This list is far from exhaustive;
Differential_equation
Concepts from linear algebra
In linear algebra, an eigenvector (/ˈaɪɡən-/ EYE-gən-) or characteristic vector is a (nonzero) vector that has its direction unchanged (or reversed) by
Eigenvalues_and_eigenvectors
Linear predictive coding
(help) Strube, Hans Werner (Oct 1980), "Linear prediction on a warped frequency scale" (PDF), Journal of the Acoustical Society of America, 68 (4): 1071–1076
Warped linear predictive coding
Warped_linear_predictive_coding
Type of audible sound
Electromagnetically induced acoustic noise, electromagnetically excited acoustic noise, or more commonly known as coil whine, is audible sound directly
Electromagnetically induced acoustic noise
Electromagnetically_induced_acoustic_noise
Measure of energy loss as sound waves propagate through a medium
In acoustics, acoustic attenuation is a measure of the energy loss of sound propagation through an acoustic transmission medium. Most media have viscosity
Acoustic_attenuation
Parallel algorithm from numerical analysis
Krause, R. (2012-04-30). "Explicit parallel-in-time integration of a linear acoustic-advection system". Computers & Fluids. 59: 72–83. arXiv:1510.02237
Parareal
Process of calculating the causal factors that produced a set of observations
improved forward map. When operator F {\displaystyle F} is linear, the inverse problem is linear. Otherwise, that is most often, the inverse problem is nonlinear
Inverse_problem
Acoustic sensing method
may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Acoustic location in air was used
Sonar
Topics referred to by the same term
Look up pitch, pitched, pitches, or pitching in Wiktionary, the free dictionary. Pitch may refer to: Pitch (music), the perceived frequency of sound including
Pitch
Study of the propagation of sound in water
\,} from the above formula is known as the characteristic acoustic impedance. The acoustic power (energy per second) crossing unit area is known as the
Underwater_acoustics
Elastic stress waves in a solid
Acoustic emission (AE) is the phenomenon of radiation of acoustic (elastic) waves in solids that occurs when a material undergoes irreversible changes
Acoustic_emission
Detection of leaks in pipelines
hydrostatic testing, tracer-gas leak testing, infrared, laser technology, and acoustic or sonar technologies. Some technologies are used only during initial pipeline
Leak_detection
Theory of sound waves
Acoustic theory is a scientific field that relates to the description of sound waves. It derives from fluid dynamics. See acoustics for the engineering
Acoustic_theory
Branch of physics
principle no longer holds, and the polarization of the material is no longer linear in the electric field intensity. Instead, in the perturbative limit, it
Nonlinear_optics
Light or sound absorption in a substance
The linear attenuation coefficient, attenuation coefficient, or narrow-beam attenuation coefficient characterizes how easily a volume of material can be
Attenuation_coefficient
Mathematical function conceived as a crude model
but they may also take the form of other nonlinear functions, piecewise linear functions, or step functions. They are also often monotonically increasing
Artificial_neuron
Concept relating to waves and signals
water waves, see wave spectrum and tide spectrum. Sound and non-audible acoustic waves can also be characterized in terms of its spectral density, for example
Spectrum_(physical_sciences)
Device for suppressing part of a signal
there is no simple hierarchical classification. Filters may be: non-linear or linear time-variant or time-invariant, also known as shift invariance. If
Filter_(signal_processing)
i j k l {\displaystyle C_{ijkl}} is the linear relation between them. Assuming that a small dynamic (acoustic) deformation disturb an already statically
Acoustoelastic_effect
Scientific study of sound perception
as beating. The semitone scale used in Western musical notation is not a linear frequency scale but logarithmic. Other scales have been derived directly
Psychoacoustics
American engineer (1948–2011)
vol. 120, Linear Technology Corp Williams, Jim (Apr 2011), An introduction to acoustic thermometry (PDF), Application Note, vol. 131, Linear Technology
Jim Williams (analog designer)
Jim_Williams_(analog_designer)
Technique for modeling the propagation of a wave field
applied extensively in the field of ultrasound. The technique can predict an acoustic pressure field distribution over a plane, based upon knowledge of the pressure
Angular_spectrum_method
Computational navigational technique used by robots and autonomous vehicles
enable use of Acoustic SLAM, so that DoA features are properly estimated. Acoustic SLAM has paved foundations for further studies in acoustic scene mapping
Simultaneous localization and mapping
Simultaneous_localization_and_mapping
Imaging technique using moving X-ray machines
CT. This is a variant of linear tomography, where a limited arc of movement is used, resulting in less blurring than linear tomography. It is still used
Focal_plane_tomography
Sound wave which travels along the surface of an elastic material
A surface acoustic wave (SAW) is an acoustic wave traveling along the surface of a material exhibiting elasticity, with an amplitude that typically decays
Surface_acoustic_wave
2009 song by U2
have been recorded, including an uptempo rock arrangement on Linear and a slower acoustic version in Brothers. The song was nominated for the Golden Globe
Winter_(U2_song)
Method of sound synthesis
Linear arithmetic synthesis, or LA synthesis, is a means of sound synthesis invented by the Roland Corporation when they released their D-50 synthesizer
Linear_arithmetic_synthesis
An acoustic rheometer is a device used to measure the rheological properties of fluids, such as viscosity and elasticity, by utilizing sound waves. It
Acoustic_rheometer
Speech analysis and encoding technique
Linear predictive coding (LPC) is a method used mostly in audio signal processing and speech processing for representing the spectral envelope of a digital
Linear_predictive_coding
Process of hearing and understanding language
initial auditory signal, speech sounds are further processed to extract acoustic cues and phonetic information. This speech information can then be used
Speech_perception
new belt, wobbly passenger seat fixed by installing nylon shims on the linear motion lead screw. Notes: Popularly known as the Clown Shoe. Ant notes a
List of Wheeler Dealers episodes
List_of_Wheeler_Dealers_episodes
Physical characteristic of oscillating systems
Resonance can occur in various systems, such as mechanical, electrical, or acoustic systems, and it is often desirable in certain applications, such as musical
Resonance
Set of cryptographic algorithms by the NSA
Algebraic Cube attack Gröbner attack Linear (Piling-up lemma) Differential Impossible Truncated Higher-order Differential-linear Distinguishing (Known-key) Integral/Square
Commercial National Security Algorithm Suite
Commercial_National_Security_Algorithm_Suite
Electrical musical instrument
employing the string itself as a linear pickup element, thus avoiding any modification of tone-producing parts on an acoustic cello. Many electric cellos have
Electric_cello
1930; engineer William Sheeran of Otis; medical doctor Rollin Stott, of the Linear Motion Laboratory of the Defence Research Agency (DERA) Centre for Human
List_of_Equinox_episodes
Elastic waves propagating in solid plates or spheres
mathematician Horace Lamb published his classic analysis and description of acoustic waves of this type. An infinite medium supports just two wave modes, longitudinal
Lamb_waves
Method of modeling the behavior of a viscoelastic material
The standard linear solid (SLS), also known as the Zener model after Clarence Zener, is a method of modeling the behavior of a viscoelastic material using
Standard_linear_solid_model
Any analogy between electrical and mechanical systems, used for modelling
generators provided the transistor is operating in a substantially linear region. Acoustic mass does not have units of mass. In the SI system it has units
Mechanical–electrical analogies
Mechanical–electrical_analogies
Linear transient response analysis Linear coupled fluid-structure (acoustic) analysis Linear steady-state heat transfer analysis coupled with static analysis
Radioss
and (in the presence of a suitable acoustic wave in the crystal) two diffracted beams corresponding to each linear polarization component (ordinary and
Acousto-optic programmable dispersive filter
Acousto-optic_programmable_dispersive_filter
Device that emites acoustic radiation
"Generation of high-frequency coherent acoustic phonons in superlattices under hopping transport. I. Linear theory of phonon instability". Physical Review
Sound amplification by stimulated emission of radiation
Sound_amplification_by_stimulated_emission_of_radiation
characteristics. The final mechanism proposes that evolution carries on linearly, without any feedback loops: environmental conditions define the selective
Sensory_drive_hypothesis
Type of wave in plasma
in the numerator can be ignored. We derive the ion acoustic wave dispersion relation for a linearized fluid description of a plasma with electrons and N
Ion_acoustic_wave
Class of musical instruments with vibrating strings
music trends in the United States. The acoustic guitar was widely used in blues and jazz, but as an acoustic instrument, it was not loud enough to be
String_instrument
Standard for the encryption of electronic data
provides the non-linearity in the cipher. The S-box used is derived from the multiplicative inverse over GF(28), known to have good non-linearity properties
Advanced_Encryption_Standard
Thin vibrating membrane
voice coil signal results in acoustical distortion. The ideal for a cone/surround assembly is an extended range of linearity or "pistonic" motion characterized
Diaphragm_(acoustics)
independent of the acoustic variables. In this way, linearized equations are derived which describe the propagation of the acoustic waves in a homogeneous
Aeroacoustic_analogy
Spectrum of phonetic resonance in speech production
estimate the acoustic resonances of the vocal tract (i.e. the speech definition of formants) from a speech recording, one can use linear predictive coding
Formant
Audio signal processing technique
those for the comparable linear sweep version. As the mathematics of non-linear chirps is more complicated than that of linear chirps, many early workers
Chirp_compression
Audio companding algorithm
Audio quality comparison 16-bit linear PCM (reference/original) 8-bit µ-law PCM 8-bit linear PCM Problems playing these files? See media help. The μ-law
Mu-law_algorithm
Physics apparatus for demonstrating acoustic standing waves in a tube
flame tube, or simply flame tube, is a physics apparatus for demonstrating acoustic standing waves in a tube. Invented by German physicist Heinrich Rubens
Rubens_tube
Video game franchise
motion controllers. Lego Horizon Adventures simplifies these mechanics into linear sequences interspersed with environmental hazards. In the mainline games
Horizon_(video_game_series)
Matrix relating system inputs and outputs
the system to its inputs. It is a particularly useful construction for linear time-invariant (LTI) systems because it can be expressed in terms of the
Transfer_function_matrix
Measure of speech transmission quality
when no electro-acoustic components are present within the transmission path. However, the requirement that the channel must be linear implies that the
Speech_transmission_index
Output of a dynamic system when given a brief input
Dirac delta function has), the impulse response defines the response of a linear time-invariant system for all frequencies. Mathematically, how the impulse
Impulse_response
utricle, each of which contain a macula to detect linear acceleration. Its function is to detect vertical linear acceleration. The macula of saccule lies in
Macula_of_saccule
Implementations of Advanced Encryption Standard
Algebraic Cube attack Gröbner attack Linear (Piling-up lemma) Differential Impossible Truncated Higher-order Differential-linear Distinguishing (Known-key) Integral/Square
AES_implementations
Nonlinear transduction mechanism
generated by linear sources in the medium. This formalism has been applied not only to parametric arrays, but also to other nonlinear acoustic effects, such
Parametric_array
Block cipher
cryptanalysis, and has acted as a catalyst in the discovery of differential and linear cryptanalysis. There have been several different revisions of FEAL, though
FEAL
iu_{t}+L_{1}u=\varphi u,\quad \displaystyle L_{2}\varphi =L_{3}(|u|^{2})} Acoustic waves Zeldovich–Frank-Kamenetskii equation 1+3 u t = D ∇ 2 u + β 2 2 u
List of nonlinear partial differential equations
List_of_nonlinear_partial_differential_equations
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