| 释义 |
high fiˈdelity
[f. high a. + fidelity 2 c.]
In equipment used in the recording and reproduction of sound, the property of producing little distortion in the signal, so that the sound produced bears as close a resemblance as possible to the original. Also applied to the recording of electrical signals generally (quots. 1938, 1957). Also attrib. or as adj. So higher fidelity. Cf. hi-fi.
1934Electronics July 223/2 If the term ‘high-fidelity’ is to mean anything the predicated performance should be kept at a reasonably high level. 1934Wireless World 19 Oct. 318/2 With the introduction of the ‘high fidelity’ receiver the broadcasters, who have repeatedly criticised the manufacturers for low-quality receivers which cut off the extreme notes, now make the admission that improvement is necessary in their own transmitters. 1937Time 8 Mar. 62/1 (Advt.), Victor records: higher fidelity. 1938Jrnl. R. Aeronaut. Soc. XLII. 1049 Present-day high fidelity 441-line television demands modulation frequencies as high as 4 megacycles. 1940Chambers's Techn. Dict. 415/2 High-fidelity, an inexact term generally meaning sound reproduction of a superior, but undefined, quality. 1946Electronic Engin. XVIII. 54 It has not been possible up to the present to obtain full advantage of the high fidelity of the moving coil pick-up. 1955Priestley & Hawkes Journey down Rainbow 27 There was talk; there were high-fidelity records. 1957Times 7 Oct. 8/3 The power of the transmitters guarantees high fidelity reception of the wireless signals. 1958Times 17 May 9/5 This search for the elusive ‘high fidelity’ is pursued with an avidity only limited by the depth of his pocket. 1972Sci. Amer. Sept. 100/3 If one wishes to transmit music with high fidelity, the required bandwidth is 15,000 hertz. |