1947 26 396 Any input wave can be represented by a series of regularly occurring instantaneous samples, provided that the sampling rate is at least twice the highest frequency in the input wave.
1978 Apr. 1789/2 The Sound Stream recorder, which sells for $70,000, is a full 6-bit binary conversion and recording system, with a sampling rate of 48K, frequency response to 17kHz,..and a tape speed of 30ips.