Sound recording and reproduction Wikipedia. Sound recording and reproduction is an electrical, mechanical, electronic, or digital inscription and re creation of sound waves, such as spoken voice, singing, instrumental music, or sound effects. The two main classes of sound recording technology are analog recording and digital recording. Mp3 Tempo Changer 1.1 Serial' title='Mp3 Tempo Changer 1.1 Serial' />Top VIdeos. Warning Invalid argument supplied for foreach in srvusersserverpilotappsjujaitalypublicindex. Archives and past articles from the Philadelphia Inquirer, Philadelphia Daily News, and Philly. In finance, an exchange rate also known as a foreignexchange rate, forex rate, ER, FX rate or Agio between two currencies is the rate at which one currency will be. If you like making playlists, youre more likely to buy video games. Thats some of the data Spotify collected for its new tool, Spotify. Me, which helps brands. Prior to the development of sound recording, there were mechanical systems for encoding and reproducing instrumental music, such as wind up music boxes and, later, player pianos. Acoustic analog recording is achieved by a microphone diaphragm that can detect and sense the changes in atmospheric pressure caused by acoustic sound waves and record them as a mechanical representation of the sound waves on a medium such as a phonograph record in which a stylus cuts grooves on a record. In magnetic tape recording, the sound waves vibrate the microphone diaphragm and are converted into a varying electric current, which is then converted to a varying magnetic field by an electromagnet, which makes a representation of the sound as magnetized areas on a plastic tape with a magnetic coating on it. Analog sound reproduction is the reverse process, with a bigger loudspeaker diaphragm causing changes to atmospheric pressure to form acoustic sound waves. Oscillations may also be recorded directly from devices such as an electric guitar pickup or a synthesizer, without the use of acoustics in the recording process, other than the need for musicians to hear how well they are playing during recording sessions via headphones. Digital recording and reproduction converts the analog sound signal picked up by the microphone to a digital form by the process of digitization. This lets the audio data be stored and transmitted by a wider variety of media. Digital recording stores audio as a series of binary numbers zeros and ones representing samples of the amplitude of the audio signal at equal time intervals, at a sample rate high enough to convey all sounds capable of being heard. Digital recordings are considered higher quality than analog recordings not necessarily because they have higher fidelity wider frequency response or dynamic range, but because the digital format can prevent much loss of quality found in analog recording due to noise and electromagnetic interference in playback and mechanical deterioration or damage to the storage medium. Whereas successive copies of an analog recording tend to degrade in quality, as more noise is added, a digital audio recording can be reproduced endlessly with no degradation in sound quality. A digital audio signal must be reconverted to analog form during playback before it is amplified and connected to a loudspeaker to produce sound. Pre historyeditLong before sound was first recorded, music was recordedfirst by written music notation, then also by mechanical devices e. Automatic music reproduction traces back as far as the 9th century, when the Ban Ms brothers invented the earliest known mechanical musical instrument, in this case, a hydropowered water powered organ that played interchangeable cylinders. According to Charles B. Fowler, this. cylinder with raised pins on the surface remained the basic device to produce and reproduce music mechanically until the second half of the nineteenth century. The Banu Musa brothers also invented an automaticflute player, which appears to have been the first programmable machine. According to Fowler, the automata were a robotband that performed. In the 1. 4th century, Flanders introduced a mechanical bell ringer controlled by a rotating cylinder. Similar designs appeared in barrel organs 1. A music box is an automatic musical instrument that produces sounds by the use of a set of pins placed on a revolving cylinder or disc so as to pluck the tuned teeth or lamellae of a steel comb. Mp3 Tempo Changer 1.1 Serial' title='Mp3 Tempo Changer 1.1 Serial' />They were developed from musical snuff boxes of the 1. Some of the more complex boxes also have a tiny drum andor bells, in addition to the metal comb. The fairground organ, developed in 1. The player piano, first demonstrated in 1. The most sophisticated of the piano rolls were hand played, meaning that the roll represented the actual performance of an individual, not just a transcription of the sheet music. This technology to record a live performance onto a piano roll was not developed until 1. Piano rolls were in continuous mass production from 1. A 1. 90. 8 U. S. Supreme Court copyright case noted that, in 1. The use of piano rolls began to decline in the 1. PhonautographeditThe first device that could record actual sounds as they passed through the air but could not play them backthe purpose was only visual study was the phonautograph, patented in 1. Miscellaneous About Pedal Steel Guitars. Always ask for pictures before buying a steel guitar. Decline any offer where the seller displays blurry photos or it appears. Parisian inventor douard Lon Scott de Martinville. The earliest known recordings of the human voice are phonautograph recordings, called phonautograms, made in 1. They consist of sheets of paper with sound wave modulated white lines created by a vibrating stylus that cut through a coating of soot as the paper was passed under it. An 1. 86. 0 phonautogram of Au Clair de la Lune, a French folk song, was played back as sound for the first time in 2. PhonographeditPhonograph cylindereditOn April 3. French poet, humorous writer and inventor Charles Cros submitted a sealed envelope containing a letter to the Academy of Sciences in Paris fully explaining his proposed method, called the paleophone. Though no trace of a working paleophone was ever found, Cros is remembered as the earliest inventor of a sound recording and reproduction machine. The first practical sound recording and reproduction device was the mechanical phonograph cylinder, invented by Thomas Edison in 1. The invention soon spread across the globe and over the next two decades the commercial recording, distribution, and sale of sound recordings became a growing new international industry, with the most popular titles selling millions of units by the early 1. The development of mass production techniques enabled cylinder recordings to become a major new consumer item in industrial countries and the cylinder was the main consumer format from the late 1. Disc phonographedit. Recording of Bells voice on a wax disc in 1. Emile Berliner with disc record gramophone. The next major technical development was the invention of the gramophone disc, generally credited to Emile Berliner and commercially introduced in the United States in 1. Alexander Graham Bell in 1. Discs were easier to manufacture, transport and store, and they had the additional benefit of being louder marginally than cylinders, which by necessity, were single sided. The Wholly Family. Sales of the gramophone record overtook the cylinder ca. World War I the disc had become the dominant commercial recording format. Edison, who was the main producer of cylinders, created the Edison Disc Record in an attempt to regain his market. In various permutations, the audio disc format became the primary medium for consumer sound recordings until the end of the 2. Although there was no universally accepted speed, and various companies offered discs that played at several different speeds, the major recording companies eventually settled on a de facto industry standard of nominally 7. America and the rest of the world. The specified speed was 7. America and 7. 7.