Rapid access magnetic audio recording systems

Author

Kenney, J.R.

Author_Institution

Nat. Res. Council of Canada, Ottawa, Ont., Canada

Volume

6

Issue

2

fYear

1981

fDate

4/1/1981 12:00:00 AM

Firstpage

24

Lastpage

29

Abstract

Magnetic recording is so simple and convenient that it naturally comes to mind as a means of providing audio output for computer-aided learning and other interactive computer systems. However, when rapid, random access to the messages is required, configurations other than the conventional reel-to-reel and cassette recorders must be used. Two such systems are described: a disc recorder employing 10-inch discs, with 30 minutes of playing time per disc, and a belt recorder with a belt width of 4.5 inches, and up to 67 minutes of playing time. In both cases the frequency response is 50 to 3500 Hz (3 dB down), with an average access time of less than one second.

Keywords

audio recording; computer aided instruction; magnetic recording; video and audio discs; CAI; CAL; average access time 1 s; belt recorder; computer aided instruction; computer aided learning systems; disc recorder; interactive computer systems; magnetic belt recorder; magnetic disc recorder; rapid access magnetic audio recording systems; Belts; Computers; Frequency response; Loading; Magnetic heads; Magnetic recording; Registers;

fLanguage

English

Journal_Title

Electrical Engineering Journal, Canadian

Publisher

ieee

ISSN

0700-9216

Type

jour

DOI

10.1109/CEEJ.1981.6590831

Filename

6590831