pre-emphasis
/priːˈɛmfəsɪs/Chiefly Sound Recording and Broadcasting
noun
A systematic distortion applied to an audio or video signal prior to transmission or recording, usually in order to improve signal-to-noise ratio, involving an increase in the relative strength of certain frequencies in anticipation of a corresponding decrease (de-emphasis) made during reception or playback.
Origin
1940s; earliest use found in RCA Review. From pre- + emphasis.
- travel agent
- travelator
- travel bureau
- travel card
- traveler
- travelled
- traveller
- traveller's cheque
- traveller's joy
- traveller's tale
- travel light
- travelling
- travelling crane
- travelling people
- travelling salesman
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- travelling scholarship
- travelling stock
- travelling stock reserve
- travelling stock route
- travelling wave
- travelogue
- travel-sick
- travel sickness
- travel writer