Noun
A reduction in emphasis.
(telecommunications) A signal distortion, carried out at a receiver, in order to undo the effects of pre-emphasis at the transmitter.
(telecommunications) A reduction of the level of all bits except the first one after a transition.
Source: en.wiktionary.orgAny noise added by transmission or record/playback, to the frequency range previously boosted, is now attenuated in the de-emphasis stage. Source: Internet
De-emphasis In telecommunication, de-emphasis is the complement of pre-emphasis, in the antinoise system called emphasis. Source: Internet
Later, when the signal is received, or retrieved from recording, the reverse transformation is applied ("de-emphasis") so that the output accurately reproduces the original input. Source: Internet
On playback, the player applies a de-emphasis filter to restore the frequency response curve to an overall flat one. Source: Internet
Pre-emphasis time constants are 50µs and 15µs (9.49 dB boost at 20kHz), and a binary flag in the disc subcode instructs the player to apply de-emphasis filtering if appropriate. Source: Internet
The receiver demodulation process includes a reciprocal network, called a de-emphasis network, to restore the original signal power distribution. Source: Internet