Acoustic reflex and otoacoustic emissions may also be measured.

Acoustic noise can be anything from quiet but annoying to loud and harmful.

Acoustic instruments can also be made out of artificial materials, such as carbon fiber and fiberglass ( particularly the larger instruments, such as cellos and basses ).

Acoustic neuroma-tumor, usually benign, which may develop on the hearing and balance nerves and can cause gradual hearing loss, tinnitus, and / or dizziness.

* Acoustic keyloggers: Acoustic cryptanalysis can be used to monitor the sound created by someone typing on a computer.

Acoustic overexposure can lead to temporary or permanent loss of hearing.

Acoustic energy is variation in the air pressure that can be represented as sound waves, which are then perceived by the human auditory system as sound.

Acoustic quieting, noise mitigation, and noise control can be used to limit unwanted noise.

** Surface Acoustic Wave touchscreens, an electronic visual display that can detect the presence and location of a touch within the display area

Acoustic impedance can be expressed in either its constituent units ( pressure per velocity per area ) or in rayls per square meter.

Acoustic homing can be either Passive or Active in nature.

" " Acoustic instruments and unamplified, ' pure '- tone singing can now not be heard except as contrasts to more recent kinds of sounds, just as live performances are inevitably ' checked ' against memories of recordings ," and " live performances have to try to approximate the sounds which inhabit this consciousness.

Bandits of the Acoustic Revolution can be considered only a smaller side project, as it has taken a back seat to Tomas Kalnoky ’ s main focus, Streetlight Manifesto.

Originally on 1983's Twang Bar King album, the song can also be found on the Desire of the Rhino King compilation and in an acoustic version on both The Acoustic Adrian Belew and the Salad Days compilation.

Acoustic pianos have expression pedals which can change the response or tone of the instrument, such as a sustain pedal and a soft pedal.

Ginger of The Wildhearts performed " If I Had You " live at the 12 Bar in 1998, which can be heard on the " Grievous Acoustic Behaviour-Live at the 12 bar " double album.

Acoustic analog recording is achieved by a small microphone diaphragm that can detect changes in atmospheric pressure ( acoustic sound waves ) and record them as a graphic representation of the sound waves on a medium such as a phonograph ( in which a stylus senses grooves on a record ).

Acoustic panels and bass traps, can improve the sound in the room.

Acoustic torpedoes can be compared to modern fire-and-forget guided missiles.

Sometimes, for the sake of appearance or of the desired " feel " of the instrument, a drum with a trigger will be used as a trigger pad by muffling it so heavily that no significant sound at all is produced, see Electronic drum # Acoustic triggered drum kit.

According to Tchort's writings in the booklet to The Acoustic Verses, Green Carnation's next studio release is going to be the second part of the " The Chronicles of Doom " trilogy, which began with Light of Day, Day of Darkness, and is going to be titled The Rise and Fall of Mankind.

Acoustic violins may be used with an add-on piezoelectric bridge or body pickup, or a magnetic pickup attached to the fingerboard end.

On February 3, 2011, " Mona Lisa " was released on The Alternative Press website to be streamed for free, although it was played previously at an Acoustic set for 104. 5 Radio with " On Love, On Life ".

" After much of a break from touring, the band announced that they would be doing Warped Tour 2012 from June 16 to July 30, and Raneri would be playing solo acoustic sets on the Acoustic Basement Stage for the same tour dates.

Acoustic mirrors had a limited effectiveness, and the increasing speed of aircraft in the 1930s meant that they would already be too close to deal with by the time they had been detected.

Positive Thinking ... ( Acoustic Alchemy ) ( 1998 ) was to be Acoustic Alchemy's last album with original frontman Nick Webb.

Acoustic Alchemy are currently touring and working on their new album " Roseland ", due to be released in summer 2011.

In 2011 he started a solo Electro / Acoustic project called " Company 23 " He will be releasing a recording for this project and doing shows in 2011.

Electromyography, Acoustic reflex testing ( formerly the gold standard ), MRI, CT scanning, transcranial magnetic stimulation, blink reflex tests, and maximal / minimal stimulation tests may also be used to asses the viability of the nerves.

Live is a 1992 live recording by Sarah McLachlan, not to be confused with the 2004 Live Acoustic EP.

Acoustic resonance is a branch of mechanical resonance that is concerned with the mechanical vibrations across the frequency range of human hearing, in other words sound.

* Acoustic features: physical characteristics of speech sounds such as color, loudness, amplitude, frequency etc.

Acoustic phonetics investigates properties like the mean squared amplitude of a waveform, its duration, its fundamental frequency, or other properties of its frequency spectrum, and the relationship of these properties to other branches of phonetics ( e. g. articulatory or auditory phonetics ), and to abstract linguistic concepts like phones, phrases, or utterances.

Acoustic Doppler velocimetry ( ADV ) is designed to record instantaneous velocity components at a single point with a relatively high frequency.

Acoustic amplifiers typically aim for a relatively flat response across the entire frequency range, much like a Public Address system.

Acoustic, inertial, LED, magnetic or reflective markers, or combinations of any of these, are tracked, optimally at least two times the frequency rate of the desired motion, to submillimeter positions.

Acoustic impedance indicates how much sound pressure is generated by the vibration of molecules of a particular acoustic medium at a given frequency.

Acoustic phonetics investigates properties like the mean squared amplitude of a waveform, its duration, its fundamental frequency, or other properties of its frequency spectrum, and the relationship of these properties to other branches of phonetics ( e. g. articulatory or auditory phonetics ), and to abstract linguistic concepts like phones, phrases, or utterances.

In the 1860s and 70s, several inventors attempted FDM under the names of Acoustic telegraphy and Harmonic telegraphy.

Acoustic pipes are made by various makers and sold under various brands.

Acoustic Control Corporation went out of business in the 1980s, then returned under the name True Tone Audio as a manufacturer of P. A.

Acoustic has come back in 2007 under the name Acoustic Amplification, starting with the models B20 and AB50.

In August 2007, the group toured under the name of Alabama 3: Acoustic and Unplugged, with Harpo Strangelove and Devlin Love to promote its new album M. O. R.

Three members continued to tour under the name Lindisfarne Acoustic until May 2004.

Natural Elements was the title track of a commercial album released in 1988 on MCA records under the composers ' band name of Acoustic Alchemy.

The label's inaugural release under the agreement was Browne's own Solo Acoustic, Vol.