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The first commonly available increase in tape length resulted from a reduction in backing thickness from 1.5 to 1.0 mil (38 to 25 μm) resulting in a total thickness reduction from 42 to 35 μm (1.7 to 1.4 mils), which allowed 3,600 ft (1,100 m), 1,800 ft (550 m), and 900 ft (270 m) tapes to fit on ten-and-a-half-, seven-, and five-inch reels respectively.
Cassette tape, a two-spool tape cassette format for analog audio recording and playback and introduced in 1963 by Philips; DC-International, a format that was created by Grundig after Phillips had abandoned an earlier format that was being created alongside the Compact Cassette; 8-track tape, continuous loop tape system introduced in 1964
Recording onto a metal tape requires special high-flux magnetic heads and high-current amplifiers to drive them. [19] [79] Typical metal tape is characterized by remanence of 3000–3500 G and coercivity of 1100 Oe, thus its bias flux is set at 250% of Type I level.
The Compact Cassette, also commonly called a cassette tape, [2] 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 , the Compact Cassette was released in August 1963.
The machine used steel tape that was 6 mm wide and 0.08 mm thick. It travelled at 5 feet per second and was able to record up to 20 minutes of audio. Although the tape was used by some organizations like the BBC , the quality was deemed not suitable for music recording so it was mainly used for dictation recording.
Different lengths of tape, and different positions for the tape on the drum head can cause different sounds. Use of multiple strips causes a heavier muffle. Taping a tissue or napkin to the rim of the drum, and letting it lay loose on the batter head. Again, different thicknesses and positions create different sounds.
I suggest renaming/moving this page to Audio tape specifications. Length and thickness are not the only interesting specs. -- Austin Murphy 17:24, 13 April 2008 (UTC) In the absence of any objections, I'll do it. -- Austin Murphy 19:58, 13 January 2009 (UTC)
A reel-to-reel tape recorder (Sony TC-630), typical of a 1970s audiophile device. 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 (or feed reel) containing the tape is placed on a spindle or hub.