pre-emphasizev.
/priːˈɛmfəsʌɪz/, U.S. /priˈɛmfəˌsaɪz/ Chiefly Sound Recording and Broadcasting.
transitive. To subject to pre-emphasis.
ΘΚΠ
society > communication > broadcasting > putting on or producing broadcast > put on or produce broadcast [verb (transitive)] > various techniques
fade1927
pre-emphasize1951
favour1960
society > communication > record > recording or reproducing sound or visual material > sound recording and reproduction > make recording [verb (transitive)] > skew frequencies to exclude noise
pre-emphasize1951
1951 Electronics Oct. 98/1 Audio program signals..were amplified, high-frequency pre-emphasized and low-pass filtered to a top of approximately 16 kc.
1968 A. B. Cook & A. A. Liff Frequency Modulation Receivers xiv. 490 Both the left (L) and right (R) channels are fed to 75-μ sec high-pass filters, where they are preemphasized.
1981 K. N. Stevens & S. E. Blumstein in P. D. Eimas & J. L. Miller Perspectives Study of Speech i. 11 These spectra..were derived by means of a 14-pole linear prediction algorithm, which preemphasized the higher frequencies.
1995 Proc. National Acad. Sci. U.S.A. 92 9933/2 (caption) The spectra are preemphasized by 6 dB/octave.
Derivatives
pre-ˈemphasized adj.
ΚΠ
1957 Proc. IRE 45 1528/1 Higher frequencies are emphasized in transmission and corrected on reception. This has been referred to as ‘hybrid modulation’, and ‘pre-emphasized transmission’.
1972 Automatica 8 752/1 Such commonly used modulation formats as AM, PM and FM, and pre-emphasized FM.
2000 Signal Processing 80 1659/2 To estimate the instantaneous frequency of the individual formants, the pre-emphasised signal must be separated into single-component signals.
This is a new entry (OED Third Edition, March 2007; most recently modified version published online March 2022).
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v.1951