单词 | ground noise |
释义 | > as lemmasground noise ground noise n. in sound reproduction, noise that is introduced by the recording medium (e.g. needle hiss on a gramophone record). ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > signal > [noun] > unwanted part of signal > types of stray1901 atmospherics1905 static1905 pickup1925 ambient noise1926 background1927 ground noise1929 hum1929 Johnson noise1929 microphonic1929 thermal noise1930 parasitic1943 flicker noise1947 overhang1971 1929 Trans. Soc. Motion Picture Engin. 13 53 Ground noise, any noise due to foreign matter or imperfections in or on the film arising during manufacture, processing or handling; does not include amplifier or photoelectric cell noises. 1938 Motion Picture Sound Engin. (Acad. Motion Pict. Arts & Sci.) iv. 44 Such a system..will differ from the ideal in several respects, one of which is the introduction of ‘ground noise’ during the recording process. 1942 Electronic Engin. 14 709 The fundamental failing of the disk is the fact that reproduction of the full frequency range recorded involves the production of atrocious scratch... We must not regard this ground noise as a defect altogether beyond improvement. < as lemmas |
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