MiniDisc (MD) is an erasable magneto-optical disc-based data storage format offering a capacity of 60, 74, and later, 80 minutes of digitized audio.
MD Data is a magneto-optical medium succeeding MiniDisc. Sony wanted it to replace floppy disks, but instead came the Zip drive, CD writers, and memory sticks and cards.
Digital audio is a representation of sound recorded in, or converted into, digital form. In digital audio, the sound wave of the audio signal is typically encoded as numerical samples in a continuous sequence. For example, in CD audio, samples are taken 44,100 times per second, each with 16-bit sample depth. Digital audio is also the name for the entire technology of sound recording and reproduction using audio signals that have been encoded in digital form. Following significant advances in digital audio technology during the 1970s and 1980s, it gradually replaced analog audio technology in many areas of audio engineering, record production and telecommunications in the 1990s and 2000s.
The Compact Cassette, also commonly called a cassette tape, audio cassette, or simply tape or cassette, is an analog magnetic tape recording format for audio recording and playback. Invented by Lou Ottens and his team at the Dutch company Philips and released in August 1963, Compact Cassettes come in two forms, either containing content as a prerecorded cassette (Musicassette), or as a fully recordable "blank" cassette. Both forms have two sides and are reversible by the user. Although other tape cassette formats have also existed—for example the Microcassette—the generic term cassette tape is normally used to refer to the Compact Cassette because of its ubiquity.
The 8-track tape is a magnetic-tape sound recording technology that was popular from the mid-1960s to the early 1980s, when the compact cassette, which pre-dated the 8-track system, surpassed it in popularity for pre-recorded music.
A cassette deck is a type of tape machine for playing and recording audio cassettes that does not have a built-in power amplifier or speakers, and serves primarily as a transport. It can be a part of an automotive entertainment system, a part of a portable mini system or a part of a home component system. In the latter case it is also called a component cassette deck or just a component deck.
Multitrack recording (MTR), also known as multitracking, is a method of sound recording developed in 1955 that allows for the separate recording of multiple sound sources or of sound sources recorded at different times to create a cohesive whole. Multitracking became possible in the mid-1950s when the idea of simultaneously recording different audio channels to separate discrete "tracks" on the same reel-to-reel tape was developed. A "track" was simply a different channel recorded to its own discrete area on the tape whereby their relative sequence of recorded events would be preserved, and playback would be simultaneous or synchronized.
Reel-to-reel audio tape recording, also called open-reel recording, is magnetic tape audio recording in which the recording tape is spooled between reels. To prepare for use, the supply reel containing the tape is placed on a spindle or hub. The end of the tape is manually pulled from the reel, threaded through mechanical guides and over a tape head assembly, and attached by friction to the hub of the second, initially empty takeup reel. Reel-to-reel systems use tape that is 1⁄4, 1⁄2, 1, or 2 inches wide, which normally moves at 3+3⁄4, 7+1⁄2, 15 or 30 inches per second. Domestic consumer machines almost always used 1⁄4 inch (6.35 mm) or narrower tape and many offered slower speeds such as 1+7⁄8 inches per second (4.762 cm/s). All standard tape speeds are derived as a binary submultiple of 30 inches per second.
dbx is a family of noise reduction systems developed by the company of the same name. The most common implementations are dbx Type I and dbx Type II for analog tape recording and, less commonly, vinyl LPs. A separate implementation, known as dbx-TV, is part of the MTS system used to provide stereo sound to North American and certain other TV systems. The company, dbx, Inc., was also involved with Dynamic Noise Reduction (DNR) systems.
The 8mm video format refers informally to three related videocassette formats. These are the original Video8 format and its improved successor Hi8, as well as a more recent digital recording format known as Digital8. Their user base consisted mainly of amateur camcorder users, although they also saw important use in the professional television production field.
Ping-pong recording is a method of sound recording. It involves combining multiple track stems into one, allowing more room for overdubbing when using tape recorders with a limited set of tracks. It is also used to simplify mixdowns.
TEAC Corporation is a Japanese electronics manufacturer. TEAC was created by the merger of the Tokyo Television Acoustic Company, founded in 1953, and the Tokyo Electro-Acoustic Company, founded in 1956.
TASCAM is the professional audio division of TEAC Corporation, headquartered in Santa Fe Springs, California. TASCAM established the Home Recording phenomenon by creating the "Project Studio" and is credited as the inventor of the Portastudio, the first cassette-based multi-track home studio recorders. TASCAM also introduced the first low-cost mass-produced multitrack recorders with Simul-Sync designed for recording musicians, and manufactured reel-to-reel tape machines and audio mixers for home recordists from the early 1970s through the mid-1990s. Since the early 00's, TASCAM has been an early innovator in the field-recording and audio accompaniment to video with their DR-series recording platforms. TASCAM celebrated its 50th anniversary in 2021.
The history of sound recording - which has progressed in waves, driven by the invention and commercial introduction of new technologies — can be roughly divided into four main periods:
Foster Denki KK is an electronics company that manufactures loudspeakers and audio equipment for other companies or sells them under the trade name Fostex. It is traded on the Tokyo Stock Exchange.
Dokorder was a brand of tape recorder from Japanese electronics company Denki Onkyo, located in Ōta, Tokyo that included a four-reel transport system called "Dub-A-Tape" capable of feeding two different tapes through the same tape head assembly and, in the process, recording a duplicate of a tape. (The master and blank tapes passed through the same capstan, but through different tape head areas, yielding a Y-shaped tape path reflected in the slots built into the head assembly. Denki Onkyo also supplied a consumer and semi-pro line of reel to reel recorders that competed with Tascam/Teac and Sony but ultimately its products were found to be less durable than the competition.
Multitrack recording of sound is the process in which sound and other electro-acoustic signals are captured on a recording medium such as magnetic tape, which is divided into two or more audio tracks that run parallel with each other. Because they are carried on the same medium, the tracks stay in perfect synchronization, while allowing multiple sound sources to be recorded at different times.
The DA-88 was a digital multitrack recording device introduced by the TASCAM division of the TEAC Corporation in 1993. This modular, digital multitrack device uses tape as the recording medium and could record up to eight tracks simultaneously. It also allowed multiple DA-88 devices to be combined to record 16 or more tracks. The first models in the series recorded at 16-bit resolution. TASCAM later introduced the DA-98HR and DA-78HR, which recorded at 24-bit resolution and sample rates up to 48 kHz and 192 kHz. Audio data was stored in the DTRS format on Hi8 video cassettes, allowing up to 108 minutes of continuous recording on a single tape.
Quadraphonic open reel tape or Q4 was the first consumer format for quadraphonic sound recording and playback. Pre-recorded tapes in this format were introduced in the United States by the Vanguard Recording Society in June 1969. Specialized machines to play these tapes were introduced by electronics manufacturers such as TEAC Corporation at about the same time.
The Nakamichi Dragon is an audio cassette deck that was introduced by Nakamichi in 1982 and marketed until 1994. The Dragon was the first Nakamichi model with bidirectional replay capability and the world's first production tape recorder with an automatic azimuth correction system; this feature, which was invented by Philips engineers and improved by Niro Nakamichi, continuously adjusts the azimuth of the replay head to minimize apparent head skew and correctly reproduce the treble signal present on the tape. The system allows the correct reproduction of mechanically skewed cassettes and recordings made on misaligned decks. Apart from the Dragon, similar systems have only been used in the Nakamichi TD-1200 car cassette player and the Marantz SD-930 cassette deck.
