Creating a record

Phonograph

The phonograph was developed as a result of Thomas Edison's work on two other inventions, the telegraph and the telephone. In 1877, Edison was working on a machine that would transcribe telegraphic messages through indentations on paper tape, which could later be sent over the telegraph repeatedly. This development led Edison to speculate that a telephone message could also be recorded in a similar fashion. He experimented with a diaphragm which had an embossing point and was held against rapidly-moving paraffin paper. The speaking vibrations made indentations in the paper. Edison later changed the paper to a metal cylinder with tin foil wrapped around it. The machine had two diaphragm-and-needle units, one for recording, and one for playback. When one would speak into a mouthpiece, the sound vibrations would be indented onto the cylinder by the recording needle in a vertical (or hill and dale) groove pattern. Edison gave a sketch of the machine to his mechanic, John Kruesi, to build, which Kruesi supposedly did within 30 hours. Edison immediately tested the machine by speaking the nursery rhyme into the mouthpiece, "Mary had a little lamb." To his amazement, the machine played his words back to him.

Home phonograph

Businessman Jesse H. Lippincott assumed control of the phonograph companies by becoming sole licensee of the American Graphophone Company and by purchasing the Edison Phonograph Company from Edison. In an arrangement which eventually included most other phonograph makers as well, he formed the North American Phonograph Company on July 14, 1888. Lippincott saw the potential use of the phonograph only in the business field and leased the phonographs as office dictating machines to various member companies which each had its own sales territory. Unfortunately, this business did not prove to be very profitable, receiving significant opposition from stenographers.

Meanwhile, the Edison Factory produced talking dolls in 1890 for the Edison Phonograph Toy Manufacturing Co. The dolls contained tiny wax cylinders. Edison's relationship with the company ended in March of 1891, and the dolls are very rare today. The Edison Phonograph Works also produced musical cylinders for coin-slot phonographs which some of the subsidiary companies had started to use. These proto-"jukeboxes" were a development which pointed to the future of phonographs as entertainment machines.

In the fall of 1890, Lippincott fell ill and lost control of the North American Phonograph Co. to Edison, who was its principal creditor. Edison changed the policy of rentals to outright sales of the machines, but changed little else.

Edison increased the entertainment offerings on his cylinders, which by 1892 were made of a wax known among collectors today as "brown wax." Although called by this name, the cylinders could range in color from off-white to light tan to dark brown. An announcement at the beginning of the cylinder would typically indicate the title, artist, and company.

The Gramophone

Early attempts to design a consumer sound or music playing gadget began in 1877 when Thomas Edison invented his tin-foil phonograph. The word "phonograph" was Edison's trade name for his device, which played recorded sounds from round cylinders. The sound quality on the phonograph was bad and each recording lasted for one only play. Edison's phonograph was followed by Alexander Graham Bell's graphophone. The graphophone used wax cylinders which could be played many times, however, each cylinder had to be recorded separately making the mass reproduction of the same music or sounds impossible with the graphophone.

Modern Record Players

Record players generate sound by the disc moving. This record player has been improved since they were first invented. It was created in the 80s when it was pitched as portable. There is a new version that runs on batteries. They are under £100 if you buy them. The vinyl record is like the playback process, except in reverse. Instead of passing a stylus over grooves to recreate a recording, an album cutter connected to an input source passes over a blank disc

Open Reel tape recorder

Reel-to-reel, open reel tape recording is the form of magnetic tape audio recording in which the recording medium is held on a reel, rather than being securely contained within a cassette.In use, the supply reel or feed reel containing the tape is mounted on a spindle; the end of the tape is manually pulled out of the reel, threaded through mechanical guides and a tape head assembly, and attached by friction to the hub of a second, initially empty takeup reel. The arrangement is similar to that used for motion picture film.

Multitrack Recorder

Multitrack recording (also known as multitracking or just tracking for short) is a method of sound recording that allows for the separate recording of multiple sound sources to create a cohesive whole. Multitracking became possible with the idea of simultaneously recording different audio channels to separate discrete "tracks" on the same tape—a "track" was simply a different channel recorded to its own discrete area on tape whereby their relative sequence of recorded events would be preserved, and playback would be simultaneous or synchronized. In the 1980s and 1990s, computers provided means by which both sound recording and reproduction could be digitized, revolutionizing audio distribution. In the 2000s, multitracking hardware and software for computers was of sufficient quality to be widely used for high-end audio recording. Though tape has not been universally replaced as a recording medium, the advantages of non-linear editing and recording have resulted in digital systems largely superseding tape.

Audio cassette

Digital Audio Tape (DAT or R-DAT) was a signal recording and playback medium developed by Sony and introduced in 1987.^[1 In appearance it is similar to a compact audio cassette, using 4 mm magnetic tape enclosed in a protective shell, but is roughly half the size at 73 mm × 54 mm × 10.5 mm. As the name suggests, the recording is digital rather than analog. DAT has the ability to record at higher, equal or lower sampling rates than a CD (48, 44.1 or 32 kHz sampling raterespectively) at 16 bits quantization. If a digital source is copied then the DAT will produce an exact clone, unlike other digital media such as Digital Compact Cassette or non-Hi-MD MiniDisc, both of which use lossy data compression. Like most formats of videocassette, a DAT cassette may only be recorded on one side, unlike an analog compact audio cassette.

CD

A Compact Disc (also known as a CD) is an optical disc used to store digital data. It was originally developed to store sound recordings exclusively, but later it also allowed the preservation of other types of data. Audio CDs have been commercially available since October 1982. In 2010, they remain the standard physical storage medium for audio. Standard CDs have a diameter of 120 mm and can hold up to 80 minutes of uncompressed audio (700 MB of data). The Mini CD has various diameters ranging from 60 to 80 mm; they are sometimes used for CD singles or device drivers, storing up to 24 minutes of audio. The technology was eventually adapted and expanded to encompass data storage CD-ROM, write-once audio and data storage CD-R, rewritable media CD-RW, Video Compact Discs (VCD), Super Video Compact Discs (SVCD), PhotoCD, PictureCD, CD-i, and Enhanced CD. CD-ROMs and CD-Rs remain widely used technologies in the computer industry. The CD and its extensions are successful: in 2004, worldwide sales of CD audio, CD-ROM, and CD-R reached about 30 billion discs. By 2007, 200 billion CDs had been sold worldwide.

MP3

MPEG-1 Audio Layer 3, more commonly referred to as MP3, is a patented digital audio encoding format using a form of lossy data compression. It is a common audio format for consumer audio storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on digital audio players. MP3 is an audio-specific format that was designed by the Moving Picture Experts Group as part of its MPEG-1 standard. The group was formed by several teams of engineers at Fraunhofer IIS, AT&T-Bell Labs, Thomson-Brandt, CCETT, and others. It was approved as an ISO/IEC standard in 1991. The use in MP3 of a lossy compression algorithm is designed to greatly reduce the amount of data required to represent the audio recording and still sound like a faithful reproduction of the original uncompressed audio for most listeners. An MP3 file that is created using the setting of 128 kbit/s will result in a file that is about 11 times smaller^{[note 1]} than the CD file created from the original audio source. An MP3 file can also be constructed at higher or lower bit rates, with higher or lower resulting quality. The compression works by reducing accuracy of certain parts of sound that are deemed beyond the auditory resolution ability of most people. This method is commonly referred to as perceptual coding.^[5] It uses psychoacoustic models to discard or reduce precision of components less audible to human hearing, and then records the remaining information in an efficient manner. This technique is often presented as relatively conceptually similar to the principles used by JPEG, an image compression format. The specific algorithms, however, are rather different: JPEG uses a built-in vision model that is very widely tuned (as is necessary for images), while MP3 uses a complex, precise masking model that is much more signal dependent.