The definition of scientific pitch notation in this article is that proposed to the Acoustical Society of America in 1939, where C < sub > 0 </ sub > is in the region of the lowest possible audible frequency at about 16 Hz.

Early developments in linear turntables were from Rek-O-Kut ( portable lathe / phonograph ) and Ortho-Sonic in the 1950s, and Acoustical in the early ' 60s.

The first demonstration of the phenomena were presented by Riesz in 1928, in the Journal of Acoustical Society of America.

Acoustical renovations under the direction of Kirkegaard Associates were completed in 1992 at a cost of US $ 10 million, resulting in substantial improvement.

Acoustical engineering is the branch of engineering dealing with sound and vibration.

Acoustical engineers are typically concerned with the manipulation and control of sound.

The transparent baffles inside this auditorium allow for ideal sound projection and reproduction, key factors in Acoustical engineering.

Acoustical engineers apply these fundamental concepts, along with complex mathematical analysis, to control sound for a variety of applications.

Acoustical performance values such as STC are measured in specially constructed acoustical chambers, and that field conditions such as lack of adequate sealing, outlet boxes, back-to-back electrical boxes, medicine cabinets, flanking paths, and structure-borne sound can diminish acoustical performance.

It was replaced by the G7es / T5 " Zaunkönig " ( referred to by the Allies as GNAT, for German Naval Acoustical Torpedo ), which was faster and better able to home onto the sound of fast moving warships as well as merchant traffic.

* Acoustical signals are structured into a hierarchy of units ;

An interest in radio broadcasting and acoustics ultimately resulted in his appointment to the Acoustical and Record Laboratory of the Library of Congress in 1940 ; in this capacity he toured the American South with Alan Lomax recording the folk music of this region.

Other design team members include Jordan, Jones, and Goulding ( Civil Engineers ; Columbus ); Harrington Engineers, Incorporated ( Structural Engineers ; Atlanta ); Newcomb & Boyd ( Mechanical Engineers ; Atlanta ); Cline, Bettridge, Bernstein Lighting Design ( Architectural Lighting ; New York ); JaffeHolden Acoustics, Inc. ( Acoustical Consultant ; Norwalk, CT ); and Jones Worley Graphics, Incorporated ( RiverCenter logo and " performers "; Atlanta ).

On the other hand, even some cheaper arms could be professional quality: The " All Balance " arm made by a now defunct Dutch company, " Acoustical " was only € 30.

He held a Silver Medal in Musical Acoustics from the Acoustical Society of America, and the Chevalier dans l ' ordre des Arts et Lettres, Republique Francaise.

Just a few months later, the Acoustical Society of America held its first meeting on May 10-11, 1929, with approximately 450 charter members.

Acoustical interferometer.

Acoustical distortions ( e. g. echoes, room acoustics )

Thomas Edison was the first honorary fellow of the Acoustical Society of America, which was founded in 1929.

In 1969 Itakura and Saito introduced partial correlation, May Glen Culler proposed realtime speech encoding, and B. S. Atal presented an LPC speech coder at the Annual Meeting of the Acoustical Society of America.

In a 1996 acoustic study by the Acoustical Society of America, along with Wellesley College and the Massachusetts Institute of Technology, found that the perceived pitch of a note with vibrato " is that of its mean ", or the middle of the fluctuating pitch.

" Detection threshold for distortions due to jitter on digital audio ", Acoustical Science and Technology, Vol.

Acoustical insulation inside the case, e. g. acoustic foam, can reduce noise.

Dr. Fletcher was elected an honorary fellow of Acoustical Society of America in 1949, the second person to receive this honor after Thomas Edison.

In 1964, Manfred R. Schroeder published " A new method of Measuring Reverberation Time " in the Journal of the Acoustical Society of America.

Acoustical research was his real interest, and to that he devoted all the time and money he could spare from his business.

From 1931 to 1933 he was president of the Acoustical Society of America.

Journal of the Acoustical Society of America, 2005, 117, p. 2476.

According to Land O ' Lakes, the original Indian maiden was " simplified and modernized " in 1939 by Jess Betlach and has undergone many minor modifications since as the enduring logo of the co-op.

In 1938 and 1939 he began work, along with Bernard Babington-Smith, on the question of random number generation, developing both one of the first early mechanical devices to produce random digits, and formulated a series of tests for statistical randomness in a given set of digits which, with some small modifications, became fairly widely used.

The 1939, 1940, and 1941 models were essentially the same design, with only slight modifications from year to year.

Vis pistols made after 1939 were issued in four different series, each with small modifications to simplify production.

The coat of arms has undergone over a dozen modifications since, with the current design being approved in 1939.

In the mid-19th century, numerous modifications were attempted to alleviate these problems, as well as improve holding power, including one-armed mooring anchors.

In fact, towards the end of the four-port model's production run, there were a limited number of consoles produced which included these modifications.

These practices, which matured in the Tang Dynasty, were to be inherited by the later dynasties with some modifications.

Over the next five years modifications were made to this design, such as the addition of a circle surrounding the hand and sword and including the club's name in the badge.

After the plebiscite, several modifications to the Constitution were agreed and subjected to referendum, among them a simplification on the mechanism of future modification.

Palette modifications were used to enhance effects such as berserk and invulnerability.

Various spin-offs and modifications to the original Duke Nukem 3D were produced in the following years of the game's initial launch.

( The Coleman character remained in the show after modifications were made to relevant dialog.

Relatively small modifications were introduced in the Firearms Act, 1964, the Firearms ( Proofing ) Act, 1968, the Firearms Act, 1971, the Firearms and Offensive Weapons Act, 1990, the Firearms ( Temporary Provisions ) Act, 1998 and the Firearms ( Firearm Certificates For Non-Residents ) Act, 2000.

Large modifications to the plan were devised by Lieutenant Colonel Oliver North of the National Security Council in late 1985, in which a portion of the proceeds from the weapon sales was diverted to fund anti-Sandinista and anti-communist rebels, or Contras, in Nicaragua.

By the turn of the 20th century, the heyday of individualist anarchism had passed, although aspects of the individualist anarchist tradition were later revived with modifications by Murray Rothbard and his anarcho-capitalism in the mid-20th century, as a current of the broader libertarian movement.

These modifications of the basic 8086 design were one of the first jobs assigned to Intel's then new design office and laboratory in Haifa, Israel.

With certain modifications, the most important of which were introduced later by Aasen himself, but also through a latter policy aiming to merge this Norwegian language with Dano-Norwegian, this language has become Nynorsk (" New Norwegian "), the second of Norway's two official languages ( the other being Bokmål, the Dano-Norwegian descendant of the Danish language used in Norway at Aasen's time ).

Several of the units were later used by Mattel Electronics engineers when it was discovered that, with a few minor modifications, a Keyboard Component could be used as an Intellivision software-development system in place of the original hand-built development boards.

The Army felt that the Bantam company was too small to supply the number of vehicles it needed, so it supplied the Bantam design to Willys and Ford who were encouraged to make their own changes and modifications.

Modifications that manufacturers made to recover some of the lost distance, by increasing tail drag ( using holes, rough paint or dimples ), were outlawed at the end of 1991 and marks made using implements with such modifications removed from the record books.

Minor modifications were introduced to the Jaguars uniform during this time, most notably the font of the jersey numbers, replacing the original block numbers with a unique font.

Originally the rank structure of all three services was similar to that of the British Armed Forces, but some modifications were introduced in light of the small size of the Libyan military establishment.

Monster was disk-based and modifications to the game were immediate.

They were also completely compatible with the DEC KL10, and ran all KL10 binaries ( including the operating system ) with no modifications at about 2-3 times faster than a KL10.

Raymond E. Brown suggests that to make this claim and maintain consistency with scriptures, Mary's separate existence in the two common scenes with the Beloved Disciple were modifications hastily added later to give validity to the gospel in the late 2nd century.

Since they were discovered in the mid-1960s, histone modifications have been predicted to affect transcription.

The fact that most of the early post-translational modifications found were concentrated within the tail extensions that protrude from the nucleosome core lead to two main theories regarding the mechanism of histone modification.

It was updated in his dictionary Novial Lexike in 1930, and further modifications were proposed in the 1930s, but the language became dormant with Jespersen's death in 1943.

Other improvements were made throughout the years, including modifications to the turntable and its drive system, the needle and stylus, and the sound and equalization systems.