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The original standard MC60 microcassette contained 43.2 m (142 ft) of tape for 30 minutes recording per side at 2.4 cm/s (about 15 ⁄ 16 ips, making it half the standard speed of a compact cassette). Most recorders also provide a slower speed of 1.2 cm/s, doubling the recording time but with poor sound quality.
The playback mechanism compares the reproduced pilot signal to the line frequency (60/50 Hz), which governs the motor speed of the synchronous 16/35mm magnetic recorder, and subsequently adjusts the playback speed accordingly. Modern 16/35mm recorders employ an internal quartz oscillator, while the 1/4-inch tape player references the playback ...
The majority of the catalog contained classical recordings, with a few jazz and movie soundtrack albums. Barclay-Crocker tapes were duplicated on modified Ampex 440 machines at four times the playback speed, unlike popular reel tapes which were duplicated at 16 times the playback speed.
The frequency response for a conventional LP player might be 20 Hz to 20 kHz, ±3 dB. The low-frequency response of vinyl records is restricted by rumble noise (described above), as well as the physical and electrical characteristics of the entire pickup arm and transducer assembly. The high-frequency response of vinyl depends on the cartridge.
NAGRA E – A simple, single-speed (7.5ips), mono recorder aimed at radio reporters was introduced in 1976. In addition to these field recorders, Kudelski S.A. produced a studio recorder called the Nagra T-Audio, designed mainly for use in telecines for transferring dailies. All of the above machines use 1/4" tape.
A reel-to-reel tape recorder from Akai, c. 1978. An audio tape recorder, also known as a tape deck, tape player or tape machine or simply a tape recorder, is a sound recording and reproduction device that records and plays back sounds usually using magnetic tape for storage.
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