What Do You Mean by Pre Emphasis?

: the intentional alteration of the relative strengths of signals at different frequencies (as in radio and in disc recording) to reduce adverse effects (as noise) in the following parts of the system.

What do you mean by de-emphasis?

transitive verb. : to reduce in relative importance also : play down. Other Words from de-emphasize Synonyms Learn More About de-emphasize.

What is pre-emphasis and its use?

In high speed digital transmission, pre-emphasis is used to improve signal quality at the output of a data transmission. ... When done properly this produces a received signal which more closely resembles the original or desired signal, allowing the use of higher frequencies or producing fewer bit errors.