APPENDIX

A Brief History of Audio Recording Media Technologies

Audio recording media technologies have been in use for over one hundred years. Following are brief descriptions of some of the most popular recording media and recording technologies that were developed during that time. For our purposes we have placed them into two categories—analog and digital—along a time continuum. (See Figure A.1.)

The Age of Analog Audio Recording

Because most analog recording technologies and media are based on magnetic tape technology, we can describe the first stage of audio recording as the magnetic tape era. (We should note, however, that some digital recordings are also done on magnetic tape.)

The concept of magnetic storage was developed in 1894 by the ...

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