Encyclopedia - Acoustics: Encyclopedia - Acoustics
Acoustics is a branch of physics and is the study of sound, mechanical waves in gases, liquids, and solids. A scientist who works in the ...   » Read the article

Encyclopedia - Acoustic Guitar: Encyclopedia - Acoustic Guitar
An acoustic guitar is a modern form of guitar descended from the Classical guitar, but generally strung with steel strings for a brighter...   » Read the article

Encyclopedia - Acoustic Impedance: Encyclopedia Ii - Acoustic Impedance - Impedance Of Acoustic Components
The acoustic impedance Z of an acoustic component (in Pa·s/m) is the ratio of sound pressure p to particle velocity v at a transition wi...   » Read the article

Encyclopedia - Vowel: Encyclopedia Ii - Vowel - Acoustics
The acoustics of vowels are fairly well-understood. The different vowel qualities are realized in acoustic analyses of vowels by the rela...   » Read the article

Encyclopedia - Acoustics: Encyclopedia Ii - Acoustics - Sound Pressure Level Spl
The amplitude of a sound wave is usually characterized by its sound pressure. In a normal working environment, a very wide range of press...   » Read the article

Encyclopedia - Architectural Acoustics: Encyclopedia - Architectural Acoustics
Architectural acoustics is the science of controlling quality of sound in buildings. The main concerns of architectural acoustics are: B...   » Read the article

Encyclopedia - Acoustic Impedance: Encyclopedia - Acoustic Impedance
The acoustic impedance Z (or sound impedance) is the ratio of sound pressure p to particle velocity v in a medium or acoustic component. ...   » Read the article

Encyclopedia - Absorption Acoustics: Encyclopedia - Absorption Acoustics
Absorption refers to the absorption of sound waves by a material. The Absorption is the "missing piece", when comparing the total reflect...   » Read the article

Encyclopedia - Acoustic Bass Guitar: Encyclopedia - Acoustic Bass Guitar
The acoustic bass guitar is an acoustic string instrument based on the configuration of the electric bass pioneered by Leo Fender's elect...   » Read the article

Encyclopedia - Acoustic Neuroma: Encyclopedia - Acoustic Neuroma
Acoustic neuroma (or Vestibular Schwannoma) is a benign tumor of the the myelin forming cells called "Schwann cells" of the 8th cranial n...   » Read the article

Encyclopedia - Acoustic Resonance: Encyclopedia - Acoustic Resonance
Resonance is an important consideration for instrument builders as most acoustic instruments use resonators, such as the strings and body...   » Read the article

Encyclopedia - Acoustic Metric: Encyclopedia Ii - Acoustic Metric - Acoustic Horizons
Under general relativity, absolute gravitational horizons are sharply defined (at r=2M for a spherical black hole), and once defined, thi...   » Read the article

Encyclopedia - Beat Acoustics: Encyclopedia - Beat Acoustics
In acoustics, a beat is an interference between two sounds of slightly different frequencies, perceived as periodic variations in volume ...   » Read the article

Encyclopedia - Acoustic Theory: Encyclopedia - Acoustic Theory
Acoustic theory is the field relating to mathematical description of sound waves. It is derived from fluid dynamics. See acoustics for th...   » Read the article

Encyclopedia - Acoustic Reflex: Encyclopedia - Acoustic Reflex
The acoustic reflex (or stapedius reflex) is an involuntary muscle contraction that occurs in the middle ear of mammals in response to hi...   » Read the article

Encyclopedia - Acoustic Cryptanalysis: Encyclopedia - Acoustic Cryptanalysis
Acoustic cryptanalysis is a side channel attack which exploits sounds, audible or not, produced during a computation or input-output oper...   » Read the article

Encyclopedia - Transient: Encyclopedia - Transient
Transient means passing with time. For example, a damped oscillator needs some time after a temporary disturbance to reach the equilibriu...   » Read the article

Encyclopedia - Audio Engineering: Encyclopedia - Audio Engineering
Audio engineering is a part of audio science dealing with the recording and reproduction of sound through mechanical and electronic means...   » Read the article

Encyclopedia - Synthesis: Encyclopedia - Synthesis
Synthesis (from the Greek words syn = plus and thesis = position) is commonly understood to be an integration of two or more pre-existing...   » Read the article

Encyclopedia - Clapping: Encyclopedia - Clapping
A clap is the sound made by striking together two flat surfaces, as in the body parts of humans or animals. Humans clap with the palms of...   » Read the article

Encyclopedia - Guitar: Encyclopedia - Guitar
A guitar is a stringed musical instrument. For right-handed players, the right hand plucks the strings with either the fingers or a plect...   » Read the article

Encyclopedia - Wave Equation: Encyclopedia - Wave Equation
The wave equation is an important partial differential equation which generally describes all kinds of waves, such as sound waves, light ...   » Read the article

Encyclopedia - Guitarist: Encyclopedia - Guitarist
A guitarist is a musician who plays the guitar. Guitarist - Noted guitarists. Guitarist - Classical. François Campion (ca 1688-1748...   » Read the article

Encyclopedia - Musical Acoustics: Encyclopedia Ii - Musical Acoustics - The Natural Scale
Human beings distinguish sounds on the basis of their frequency. Actually what really matters is the ratio between their frequencies. The...   » Read the article

Encyclopedia - Musical Acoustics: Encyclopedia Ii - Musical Acoustics - The Natural Scale
Human beings distinguish sounds on the basis of their frequency. Actually what really matters is the ratio between their frequencies. The...   » Read the article

Encyclopedia - Musical Acoustics: Encyclopedia Ii - Musical Acoustics - Harmony
If two notes are simultaneously played, with frequency ratios that are simple fractions (e.g. 2/1, 3/2 or 5/4), then the composite wave w...   » Read the article

Encyclopedia - Musical Acoustics: Encyclopedia Ii - Musical Acoustics - Harmony
If two notes are simultaneously played, with frequency ratios that are simple fractions (e.g. 2/1, 3/2 or 5/4), then the composite wave w...   » Read the article

Encyclopedia - Musical Acoustics: Encyclopedia Ii - Musical Acoustics - Harmonics Partials And Overtones
The fundamental is the frequency at which the entire wave vibrates. Overtones are other sinusoidal components present at frequencies abov...   » Read the article

Encyclopedia - Sound Pressure Level: Encyclopedia Ii - Sound Pressure Level - Measuring Sound Pressure Levels
When making measurements in air, SPL is almost always expressed in decibels compared to a reference sound pressure of 20 µPa (micropasca...   » Read the article

Encyclopedia - Acoustic Lubrication: Encyclopedia Ii - Acoustic Lubrication - Examples
If there is a dynamic coefficient of friction between two objects of 0.20, and vibration causes them to be in contact only half of the ti...   » Read the article

Encyclopedia - Musical Acoustics: Encyclopedia Ii - Musical Acoustics - The Equal Tempered Scale
In the natural scale the ratio of the frequencies of two notes which differ for one tone is not always the same. Consequently a certain m...   » Read the article

Encyclopedia - Musical Acoustics: Encyclopedia Ii - Musical Acoustics - Sound Waves
Variations in air pressure against the ear drum, and the subsequent physical and neurological processing and interpretation, give rise to...   » Read the article

Encyclopedia - Musical Acoustics: Encyclopedia Ii - Musical Acoustics - Harmonics And Non-linearities
When a periodic wave is composed of a fundamental and only odd harmonics (f, 3f, 5f, 7f, ...), the summed wave is symmetrical; it can be ...   » Read the article

Encyclopedia - Musical Acoustics: Encyclopedia Ii - Musical Acoustics - Sound Waves
Variations in air pressure against the ear drum, and the subsequent physical and neurological processing and interpretation, give rise to...   » Read the article

Encyclopedia - Musical Acoustics: Encyclopedia Ii - Musical Acoustics - Harmonics Partials And Overtones
The fundamental is the frequency at which the entire wave vibrates. Overtones are other sinusoidal components present at frequencies abov...   » Read the article

Encyclopedia - Musical Acoustics: Encyclopedia Ii - Musical Acoustics - Harmonics And Non-linearities
When a periodic wave is composed of a fundamental and only odd harmonics (f, 3f, 5f, 7f, ...), the summed wave is half-wave symmetric; it...   » Read the article

Encyclopedia - Musical Acoustics: Encyclopedia Ii - Musical Acoustics - The Equal Tempered Scale
In the natural scale the ratio of the frequencies of two notes which differ for one tone is not always the same. Consequently a certain m...   » Read the article

Encyclopedia - Acoustic Neuroma: Encyclopedia Ii - Acoustic Neuroma - Assessment
Associated symptoms are unilateral sensorineural hearing loss/deafness and vertigo. Additionally more than 80% of patients having acousti...   » Read the article

Encyclopedia - Acoustic Neuroma: Encyclopedia Ii - Acoustic Neuroma - Assessment
Associated symptoms are unilateral sensorineural hearing loss/deafness and vertigo. Additionally more than 80% of patients having acousti...   » Read the article

Encyclopedia - Acoustic Impedance: Encyclopedia Ii - Acoustic Impedance - Characteristic Impedance
The characteristic impedance of a medium (usually air, but also for instance exhaust gases in a muffler) is the ratio of sound pressure p...   » Read the article

Encyclopedia - Acoustic Bass Guitar: Encyclopedia Ii - Acoustic Bass Guitar - History
The first modern acoustic bass guitar was developed in the early 1970s by Ernie Ball of San Luis Obispo, California. Ball's aim was to pr...   » Read the article

Encyclopedia - Acoustic Metric: Encyclopedia Ii - Acoustic Metric - Unusual Properties Of An Acoustic Metric
Unlike some other metrics, acoustic metrics can seem to show some very nonlinear behaviour: where special relativity's Minkowski metric i...   » Read the article

Encyclopedia - Acoustic Metric: Encyclopedia Ii - Acoustic Metric - Acoustic Metrics And Quantum Gravity
As of 2005, work towards obtaining a theory of quantum gravity is still being complicated by the lack of a solid understanding of the exa...   » Read the article

Encyclopedia - Acoustic Metric: Encyclopedia Ii - Acoustic Metric - A Simple Fluid Example
For simplicity, we will assume that the underlying background geometry is Galilean. This is absolutely unnecessary in analog models in ge...   » Read the article

Encyclopedia - Horn Acoustic: Encyclopedia Ii - Horn Acoustic - Acoustic Horns In Popular Culture
The notion of "blowing a horn" is often used as an idiomatic expression for self-promotion. The popular children's song "I've been workin...   » Read the article

Encyclopedia - Echo Chamber: Encyclopedia Ii - Echo Chamber - Electro-acoustic Echo Chambers
Development in electronics in the early 20th century -- specifically the invention of the amplifier and the microphone -- led to the crea...   » Read the article

Encyclopedia - Horn Acoustic: Encyclopedia Ii - Horn Acoustic - Horn-loaded Loudspeakers
Loudspeakers are often built into horn-shaped enclosures or use horns. Most often the higher-frequency elements (tweeters; midrange) use ...   » Read the article

Encyclopedia - Horn Acoustic: Encyclopedia Ii - Horn Acoustic - Duplicity Of Signalling Horns
Bicycle horns usually consist of a single horn operating at a single resonant frequency, with a reed made of stainless steel, located in ...   » Read the article

Encyclopedia - Piano Acoustics: Encyclopedia Ii - Piano Acoustics - String Length And Thickness
The strings of a piano vary in thickness, with bass strings thicker than treble. A typical range is from 1/30 inch for the highest treble...   » Read the article

Encyclopedia - Acoustic Bass Guitar: Encyclopedia Ii - Acoustic Bass Guitar - Construction And Tuning
Unlike the electric bass guitar, which is generally a solid body instrument, the acoustic bass guitar usually has a hollow wooden body si...   » Read the article

Encyclopedia - Piano Acoustics: Encyclopedia Ii - Piano Acoustics - Inharmonicity And Piano Size
In pianos, long strings are considered desirable. Piano design strives to fit the longest possible strings within a given case size; more...   » Read the article

Encyclopedia - Beat Acoustics: Encyclopedia Ii - Beat Acoustics - Binaural Beats
Binaural beats are heard when the right ear listens to a slightly different tone than the left ear. Here, the tones do not interfere phys...   » Read the article

Encyclopedia - Beat Acoustics: Encyclopedia Ii - Beat Acoustics - Binaural Beats
See main article: binaural beats. Binaural beats are heard when the right ear listens to a slightly different tone than the left ear. Her...   » Read the article

Encyclopedia - Horn Acoustic: Encyclopedia Ii - Horn Acoustic - Horn-based Musical Instruments
Horn acoustic - Horn-loaded musical instruments. Many wind instruments have some kind of bell shaped output to provide a good impedance...   » Read the article

Encyclopedia - Horn Acoustic: Encyclopedia Ii - Horn Acoustic - Functional Mathematical Shape Of Horns
Ideally, horns have exponentially tapered sides, but a linear taper is often used for ease of implementation — i.e. for the large plywo...   » Read the article

Encyclopedia - Acoustic Hawking Radiation: Encyclopedia Ii - Acoustic Hawking Radiation - Gravitational Analogues
Since "non-gravitational" Hawking radiation effects are usually considered to be analogous to the behaviour around black holes, they are ...   » Read the article

Encyclopedia - Acoustic Hawking Radiation: Encyclopedia Ii - Acoustic Hawking Radiation - Analogy Vs Identity
Visser, "Acoustic Black Holes" (1999): "This partial isomorphism is the basis of a very useful analogy whereby parts of General Relativit...   » Read the article

Encyclopedia - Acoustic Hawking Radiation: Encyclopedia Ii - Acoustic Hawking Radiation - Overlap Of Quantum And Classical Behaviour
Explanations of Hawking radiation around a black hole often use a description of quantum-mechanical pair production effects occurring on ...   » Read the article

Encyclopedia - Acoustic Hawking Radiation: Encyclopedia Ii - Acoustic Hawking Radiation - Controversy: Identity Of Radiated Information
Although the "classical" and "quantum" descriptions of the overall statistical characteristics of the emitted radiation agree, the nature...   » Read the article

Encyclopedia - Acoustic Hawking Radiation: Encyclopedia Ii - Acoustic Hawking Radiation - Historical Dates
1784: John Michell publishes a research paper outlining the light-trapping properties of the Newtonian predecessor of the black hole, (no...   » Read the article

Encyclopedia - E-bow: Encyclopedia Ii - E-bow - E-bow And The Acoustic Guitar
Although the E-bow is most commonly played on the electric guitar because of the ease of use and the responsiveness you get from the pick...   » Read the article

Encyclopedia - Sensor: Encyclopedia Ii - Sensor - Acoustic Sensors
Sensor - Acoustic. sound sensors: microphones, hydrophones, seismometers. acoustic: uses ultrasound time-of-flight echo return. Used ...   » Read the article

Encyclopedia - Sensor: Encyclopedia Ii - Sensor - Acoustic Sensors
Sensor - Acoustic. sound sensors: microphones, hydrophones, seismometers. acoustic: uses ultrasound time-of-flight echo return. Used ...   » Read the article

Encyclopedia - Synthesis: Encyclopedia Ii - Synthesis - Synthesis In Electronics And Acoustics
In electronic musical instruments, sound synthesis is the method of sound generation a piece of hardware or software may employ, E.g. "Mu...   » Read the article

Encyclopedia - Guitar: Encyclopedia Ii - Guitar - Acoustic And Electric Guitar
Broadly speaking, guitars can be divided into 2 categories: Acoustic guitars: Unlike the electric guitar, the traditional guitar is not ...   » Read the article

Encyclopedia - Flute: Encyclopedia Ii - Flute - Flute Acoustics
A flute produces sound when a stream of air directed across the top of a hole bounces in and out of the hole. Some engineers have called ...   » Read the article

Encyclopedia - Flute: Encyclopedia Ii - Flute - Flute Acoustics
A flute produces sound when a stream of air directed across the top of a hole bounces in and out of the hole. Some engineers have called ...   » Read the article

Encyclopedia - Innovations In The Piano: Encyclopedia Ii - Innovations In The Piano - Acoustic And Mechanical Innovations
The Stuart and Sons piano company of Newcastle, New South Wales, Australia makes a piano in which there are bridge agraffes. Agraffes are...   » Read the article

Encyclopedia - Charles Wheatstone: Encyclopedia Ii - Charles Wheatstone - Music Instruments And Acoustics
In September 1821, Wheatstone brought himself into public notice by exhibiting the 'Enchanted Lyre,' or 'Aconcryptophone,' at a music-sho...   » Read the article

Encyclopedia - Hair Cell: Encyclopedia Ii - Hair Cell - Outer Hair Cells – Acoustical Pre-amplifiers
In mammalian outer hair cells, the receptor potential triggers active vibrations of the cell body. This so-called somatic electromotility...   » Read the article

Encyclopedia - Transmission Line: Encyclopedia Ii - Transmission Line - Acoustic Transmission Lines
A duct for sound propagation also behaves like a transmission line (e.g. air conditioning duct, car muffler, ...). The duct contains some...   » Read the article

Encyclopedia - Babri Mosque: Encyclopedia Ii - Babri Mosque - Babri Masjid Acoustic & Cooling System
"A whisper from the Babri Masjid Mihrab could be heard clearly at the other end 200 feet [60 m] away and through the length and breadth o...   » Read the article

Encyclopedia - Babri Mosque: Encyclopedia Ii - Babri Mosque - Babri Masjid Acoustic & Cooling System
"A whisper from the Babri Masjid Mihrab could be heard clearly at the other end 200 feet [60 m] away and through the length and breadth o...   » Read the article

Encyclopedia - Spectrometer: Encyclopedia Ii - Spectrometer - Spectroscopes
Spectrometers known as spectroscopes are used in spectroscopic analysis to identify materials. Spectroscopes are used often in astronomy ...   » Read the article

Encyclopedia - Pickguard: Encyclopedia Ii - Pickguard - Pickguard Types
Pickguards come in various designs and shapes but designers usually try to match a headstock and pickguard design. Both can be used to in...   » Read the article

Encyclopedia - Synthesis: Encyclopedia Ii - Synthesis - Chemical Synthesis
In chemistry, chemical synthesis is the process of forming a particular molecule from chemical precursors. Synthesis formula is AB = A+B...   » Read the article

Encyclopedia - Tomas Kalnoky: Encyclopedia Ii - Tomas Kalnoky - Discography
Tomas Kalnoky - Gimp. Smiles for Macavity (Cassette) (1995) Tomas Kalnoky - Catch 22. Rules of the Game (EP) (Cassette) (1996) Kea...   » Read the article

Encyclopedia - Dungeness: Encyclopedia Ii - Dungeness - Defence Uses
The beach and marshes have been used for military training and there are marked Danger areas. Dungeness - Acoustic mirrors. Denge is th...   » Read the article

Encyclopedia - Peavey Guitars: Encyclopedia Ii - Peavey Guitars - List Of Current Models
Peavey Guitars - Electric Guitars. Hartley Peavey Signature Cropper Classic Generation EXP Generation ACM Predator Raptor Rotor EXP V-...   » Read the article

Encyclopedia - Dungeness: Encyclopedia Ii - Dungeness - Power Stations
There are two nuclear power stations at Dungeness. ... See also:Dungeness, Dungeness - Ecology, Dungeness - Lighthouses, Dungeness - P...   » Read the article

Encyclopedia - Comes A Time: Encyclopedia Ii - Comes A Time - Musicians
Comes a Time - Acoustic guitars. Grant Boatright John Christopher Jerry Shook Vic Jordan Steve Gibson Dale Sellers Ray Edenton Comes...   » Read the article

Encyclopedia - Sensor: Encyclopedia Ii - Sensor - Classification Of Measurement Errors
A good sensor applies to the following rules: the sensor should be sensitive to the measured property the sensor should be insensitive t...   » Read the article

Encyclopedia - Sensor: Encyclopedia Ii - Sensor - Biological Sensors
All living organisms contain biological sensors with functions similar to those of the mechanical devices described. Most of these are sp...   » Read the article

Encyclopedia - Sensor: Encyclopedia Ii - Sensor - Optical And Radiation Sensors
Sensor - Ionising radiation. radiation sensors: Geiger counter, dosimeter, Scintillation_counter subatomic particle sensors: scintillo...   » Read the article

Encyclopedia - Sensor: Encyclopedia Ii - Sensor - Classification Of Measurement Errors
A good sensor applies to the following rules: the sensor should be sensitive to the measured property the sensor should be insensitive t...   » Read the article

Encyclopedia - Sensor: Encyclopedia Ii - Sensor - Biological Sensors
All living organisms contain biological sensors with functions similar to those of the mechanical devices described. Most of these are sp...   » Read the article

Encyclopedia - Digital Theatre System: Encyclopedia Ii - Digital Theatre System - Dts As A Codec
DTS is an enhanced copy (and, according to some movie industry insiders, a hacking) of a French patent called LC Concept, first used in 1...   » Read the article

Encyclopedia - Flute: Encyclopedia Ii - Flute - The Indian Flutes
The Indian flute, one of the oldest instruments of Indian classical music, appears to have developed independently of the western flute. ...   » Read the article

Encyclopedia - Neurofibromatosis Type Ii: Encyclopedia Ii - Neurofibromatosis Type Ii - Symptoms And Signs
The clinical spectrum of the disease is broad. In other words, people with NF II may develop a wide range of distinct problems. Acoustic...   » Read the article

Encyclopedia - Neurofibromatosis Type Ii: Encyclopedia Ii - Neurofibromatosis Type Ii - Diagnosis
The "cardinal symptom" of the disease is bilateral acoustic neurinoma. (By its cardinal symptom a disorder is defined.) The term "diagnos...   » Read the article

Encyclopedia - Neurofibromatosis Type Ii: Encyclopedia Ii - Neurofibromatosis Type Ii - Progression Of The Disease
In NF II Acoustic neuromas usually affect young people whereas in sporadic forms of Acoustic neuromas the appearance of the tumour is lim...   » Read the article

Encyclopedia - Guitar: Encyclopedia Ii - Guitar - History
Instruments similar to what we know as the guitar have been popular for at least 5,000 years. The guitar appears to be derived from earli...   » Read the article

Encyclopedia - Guitar: Encyclopedia Ii - Guitar - Parts Of The Guitar
Guitar consists of several parts. Refer to appropriate article for description of a part: Headstock Nut Machine heads Frets Truss rod In...   » Read the article

Encyclopedia - Guitar: Encyclopedia Ii - Guitar - Guitar Terminology
The guitar has come to be called many different colloquial names over time such as: box, guit-fiddle and axe. The pitch bend arm found on...   » Read the article

Encyclopedia - Guitar: Encyclopedia Ii - Guitar - Guitar/synthesizer
A guitar/synthesizer is the adaptation of a guitar to control a synthesizer. Most commonly, a guitar/synth is a converter which analyzes ...   » Read the article

Dictionary - Acoustic Scattering: Oceanography Dictionary - Acoustic Scattering
  Definition and meaning of acoustic scattering:   acoustic scattering - the irregular reflection, refraction, or diffrac...   » Read the article

Dictionary - Acoustic Tag: Oceanography Dictionary - Acoustic Tag
  Definition and meaning of acoustic tag:   acoustic tag - a sound transmittor attached to an aquatic animal to track its...   » Read the article

Dictionary - Acoustic Signature: Oceanography Dictionary - Acoustic Signature
  Definition and meaning of acoustic signature:   acoustic signature - a set of characteristics used to describe a sound ...   » Read the article

Dictionary - Acoustic Stimulation: Traditional Medicine Dictionary On Auditory Stimulation
Acoustic stimulation , Auditory stimulation ,  : Use of sound to elicit a response in the nervous system.   (See also: ...   » Read the article

Encyclopedia - Acoustics: Encyclopedia Ii - Acoustics - Helmholtz Resonator
A Helmholtz resonator is a container with an open hole or neck. It is sometimes used as a passive noise control device. It behaves essent...   » Read the article