Reel-to-reel tape 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.
Tape Speeds
- 2.38 cm/s — used for very long-duration recordings
- 4.76 cm/s — usually the slowest domestic speed, best for long duration speech recordings
- 9.52 cm/s — common domestic speed, used on most single-speed domestic machines, reasonable quality for speech and off-air radio recordings
- 19.05 cm/s — highest domestic speed, also slowest professional; used by most radio stations for "dubs", copies of commercial announcements
- 38.1 cm/s — professional music recording and radio programming
- 76.2 cm/s — used where the best possible treble response is demanded
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