Have you ever wondered how a record player works? Probably not. After all, who still listens to records? Surprisingly enough, turntables are making a come back. With the recent surge of interest in hip hop music, popular attention has been turned towards the turntable, used by DJs to provide beats, loops and scratching for virtually all of today's hip hop groups. The inner workings of the turntable may seem complex at first but after reading this paper it should become clear that, like all things, the record player works on basic principals of physics. In fact, the turntable is remarkable in that the basic physical principles behind it are quite simple. Some of these will be explored here. Please enjoy your visit. How a record player works is quite simple. A motor is somehow connected to a solid disc so that the disc is rotated at a constant speed. On top of the rotating disc (platter), The record is placed on top, with a slip mat in between. The slip mat can serve two functions. In the past to hold the record in place so that it would not rotate independently of the platter. Now, however, the slip mat serves a much different function. Instead of holding the record in place, the slip mat is now used to reduce the friction between the spinning platter and the record. This way a DJ can scratch (manually move the record, usually at high speeds) the record while the platter continues to spin underneath. Once the record is rotating, a stylus glides along the grooves and picks up the vibrations, these are then converted into audible sound. There are many different models of turntables still being manufactured. Of those being sold, it is possible to divide them into two separate categories based upon their motor system. Virtually all record players being manufactured today have either belt drive or direct drive motors. For the reasons discussed below, direct drives are accepted as the industry standard for professional DJs and turntabilists. Belt Drive - There are two advantages to the belt drive design. The motor in a belt driven turntable is set away from the platter by means of a continuous belt loop. This minimizes vibration to the platter and thus needle skipping. Also, belt drive models tend to be much cheaper than their direct drive counter parts. These advantages, however, do not balance the many short falls of the belt drive design.
3. As engine speed increases above engagement, the primary clutch squeezes together some more and pushes the belt so that it moves to a larger radius on the primary. Because the two clutches rotate about fixed points, the belt gets pulled into the secondary, spreading it farther apart and moving the belt to a smaller radius.
Before 1925 recordings were made with an acoustical horn that would capture the sound of the musicians in front of it and transferred the vibration to a cutting stylus. No electricity was used. This process was called the acoustical process. In 1925, microphones were introduced to transfer the acoustical energy to an electric signal, which fed the cutting stylus. This electrical process ameliorated recordings sound.
The Helmholtz resonance of a guitar is due to the air at the sound hole oscillating, driven by the springiness of the air inside the body. This is analysed quantitatively in Helmholtz Resonance.
Everything in the universe involves some type of physics. Even the universe itself does, but have you ever wondered about the physics of simpler items? Physics is vital for all musical instruments, if it wasn’t; they probably wouldn’t produce the beautiful sounds that they do. One of these instruments is acoustic guitar. By looking at the instrument, it doesn’t look very complicated, but if you delve deeper into its composition, you’ll find that it’s very complicated. Physics takes part in the making of acoustic guitars, all the way to how it produces its beautiful music.
In the late 1890s, the concept of self-playing piano start to capture the attention of the inventors and the public and several different inventors’ mechanisms were marketed. Player piano has all the characteristic of a piano and it can play by itself. Piano designer and inventor Melville Clark had his very first instrument “Apollo Player Piano”, built with 88note standard in 1901 caused a major impact on the music industry. Player piano is the very first widely successful consumer device that was able to encode the data in binary format. This was done by hand punching rolls ...
Most successful musicians know a hidden art carried out by the work of a good sound engineer; it is essential for a magnificent album. For the rest of us novice listeners and fans, we believe what we hear through our speakers or played over the radio are the true skilled professional musicians, soaring at their craft. Most contemporary music, from pop to R&B and acid jazz to the sophisticated realm of orchestral film scores, has been modernized by several inventions encased within the studio. The art of audio engineering has taken on new forms, from the nuts and bolts, "plug it in, and see if it works" era into the digital world, because of these wonderfully tragic solutions to a higher pace of life. A musician's art have been made solely because of it, and others have been destroyed and humiliated by it. The complex new inventions of technology shape the adaptive method of studio recording and production however caused a drastic negative musical degrading of our beloved art.
Djing is characterized as "the specialty of mixing, scratching, and making music by working with prerecorded (normally records) and making something new." Djing became an integral factor around an indistinguishable time from break dancing. As of now rappers began coming into the photo. As this happened, there turned into a need to deliver a more dull, beat-arranged foundation that individuals could rap over. With the requirement for more beats, DJ Kool Herc was the first to DJ with two turntables. It didn't take yearn for the DJ to end up noticeably a critical factor in the development of Hip-Hop. DJ's are viewed to keep the group celebrating for the duration of the night and on the move floor. The specialty of scratching resembles a marvel. A DJ can snatch any recorded sound and control it to state whatever they need it to state. DJ's brought into play another melodic instrument "the
In analogue recording, the noise floor and distortion often accumulated at the recording and post-production stages, while a digital recordings signal was cleanly represented through binary values. In 1967, the first digital tape recorder was seen in Japan and was involved in the first digitally mastered records in 1972. The Sony PCM-1 was the first commercially available digital recording device. It converted captured analogue signal into a digital binary format. Initially digital records were still released on vinyl in analogue but in 1982 Sony and Philips released the first compact discs. Friction and noise from physical contact was now eliminated allowing a much clearer sonic representation. In 1987, digital audio tapes were introduced however record companies opposed a medium that allowed flawless copies of compact discs to be made so digital audio tapes were never released in America, however were quite popular for professional recordings. In 1995 the ...
Physical science is the study of non-living matter which I will be talking about the physics of music, and how pitch and frequency play a role together in science. Physics is known to be the most fundamental science, based on the principle and concepts. It deals with matter, motion, force, and energy, (Shipman-Wilson Higgins, 2013). In this report I will be dealing with pitch, frequency sound and waves which are also dealing with physical science and how they our related.
Working in the recording industry takes a lot of time, patience, and money. Starting with making records, to 8 tracks, to 4 track tapes, and now to CD’s, there have been many changes in bettering the production. There are five separate levels of responsibility the industry must go through before it reaches the public(148). One is the Artists and repertoire, which develop and coordinate talent. The Operations manage the technical aspects of the recording, such as: sound technicians, musicians, and even the people that
In a DC motor, the armature consists of any number of windings, each one an electromagnet. The armature is immersed in a directional external magnetic field. This external field does not move, and can come from permanent magnets or electromagnets.
To record this album an EMI console, a 16-track tape machine, a Fairchild limiters, and an EMT plate reverb were used. There were also up to five or six tape machines doing various delays, reverb delays, ect. at one time. Alan remembers “on the mix having to borrow tape machines from other rooms to get delays and stuff.” (Anonymous. "Studio Legends: Alan Parsons on "Dark Side of the Moon")
Gearboxes are a universal piece of equipment for applying power from a driving unit to a driven unit. They require very little maintenance besides oil changes, and bearing grease. This allows them to last longer than V-belts, chain drives, or open gears before they need to be replaced. With the many different configurations of gearboxes, they can be used for many different applications for everyday life and industrial use.
Physics is all around us, and yet we always overlook it. We see, hear or feel something happen but never stop to question why. Physics will tell us why. Music plays a part in everyone's lives. So much so that it is often overlooked and the technicalities of it are unappreciated. Sure there are times when we listen carefully to the music behind the songs we hear, we may focus on the rhythm or the harmonies, but we never think of what it took to make the sounds that we are hearing. In this paper, I will explain the physics musical instruments. I will describe and define sound in psychics terms and then describe how different instruments create their unique sounds.
The topic of magnetic disks is one that involves many physics related phenomenon. The intricate structure and design of “Magnetic Disks” (or hard disks) in computers include the principles of Fluid Flow, Rotational Motion, Electromagnetism, and more. This paper will focus mainly on the previously listed physics occurrences, and the design that goes into engineering the magnetic disk to include them. These physics principles are utilized in such a way that makes the hard disk a very common and useful tool, in this day and age. To most people, the magnetic disk is the most important, yet most mysterious, part of a computer system. A hard disk is a seal unit that holds computer data in the form of magnetic patterns.