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8 Cards in this Set
- Front
- Back
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History of Magnetic Tape |
1928 - Magnetic Tape Invented Late 1940s - Reel to Reel tape Recorder become central to the recording of music and sound for broadcast 1960s - Multi-Track recorders become prominent in Industry 1970s - Cassette Tapes become the central method to listening to and distrobuting music. |
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How Does it Work? |
Tape is coated in material which remembers magnetic changes applied to it by a tape head. The head has a copper coil inside of it which is connected to an electrical input or output device which can either alter or pick up the magnetic field of the tape depending on the head. |
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What is the Record Head and how does it work? |
A copper coil head which produces a magnetic field when an electrical current passes through it. (Duh, that's what happens when you pass electricity through a copper coil.) The head is suspended above the magnetic tape which then records the magnetic field produced by the record head. |
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What is the Playback Head and how does it work? |
Essentially works the opposite way round to the Record head. The copper coil head picks up the magnetism of the tape and extremely small electrical signals are produced. (Similar to a generator) That signal can then be amplified and turned back into audible sound. |
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What are the Limitations of Magnetic Tape? |
All tape recordings have some kind of hiss. This hiss is created by background electrical and magnetic waves in the atmosphere. Tape eventually wears out. Tape is Liable to break. |
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The Cassette Tape |
Became popular in the 70s. Works the same way as reel to reel. Became a popular means of music distrobution. Very small players suddenly became available. Started the personal media player revolution. |
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Muti-Track Tape Recorders |
Prior to Multi-Track recorders music all had to be recorded in one take. Micing had to be room micing so the sound was always distant and due to the quality of the mics, poor. Multi-Track recorders essentially have tapes with multiple tracks (Up to 16 tracks) each with a record and playback head. |
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How is it possible to edit tape tracks? |
You literally can cut tape with scissors to 'cut' out bits of a track that you do not want, or re-record certain sections of the track that didn't go so well. To re-assemble the track you simply cut the half that you are re-attaching on a diagonal to produce a natural cross fade, then rejoin it using adhesive tape. |
