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单词 spectrogram
释义

spectrogramn.

Etymology: < spectro- comb. form + -gram comb. form.Previous versions of the OED give the stress as: ˈspectrogram.
A photograph of a spectrum. Hence, more widely, a visual representation of a spectrum of any kind.
ΘΚΠ
society > leisure > the arts > visual arts > photography > a photograph > [noun] > scientific and technical
selenograph1868
spectrograph1891
spectrogram1892
autophotograph1904
comparison plate1905
electronograph1970
the world > matter > physics > electromagnetic radiation > light > chromatism > [noun] > spectrum > instrument for examining > visual record
spectrograph1884
spectrogram1892
the world > matter > physics > science of sound > vibration > instrument for analysing vibration > [noun] > with visible output > as graph or diagram > graph or diagram
harmonogram1902
spectrogram1939
sound spectrogram1945
sonogram1950
audiospectrogram1957
sound print1969
audiospectrograph1992
1892 Pall Mall Gaz. 17 Feb. 7/2 The spectrograms of the star show two spectra, one above the other.
1900 Edinb. Rev. Apr. 474 There must be a suspension of judgement in the matter until spectrograms of nebular nuclei can be produced in evidence.
1939 Amer. Speech 14 313/2 Examination of eleven subjects singing the vowel ‘ah’ normally and after hydrogen inhalation... Illustrated with acoustic spectrograms.
1961 Brit. Birds LIV. 388 The original spectrograms have a frequency scale from 0 to 10 kilocycles per second.
1975 Nature 25 Sept. 295/1 Spectrograms obtained with a Carnegie image tube on the 2·1-m telescope at the Kitt Peak National Observatory have been used to complete the determination of radial velocities for 50 of the 52 galaxies.
1978 Hi-Fi News Sept. 175/1 None of these, however, exceeded −70dB ref. 36 V RMS across the load (shown in spectrogram fig. 2).
1981 Amer. Speech 1977 52 237 The degree of centralization was determined by the use of a bilogarithmic scale in measuring the spectrograms of eighty instances of /aɪ/.
This entry has not yet been fully updated (first published 1913; most recently modified version published online June 2019).
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n.1892
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