MP3

Wivdam che tula razglejdate i MP3. Mnogo mi e interesno kakwo oznachawa "de-emphasis". Shte sam mnogo blaodaren za razqsnenie. Blagodarq

preemfazis i deemfazis se izpolzvat kogato triabva da prenasiash niakakuv signal (primerno prez efira ili ...)
predi moduliraneto na signala se povdigat dadeni chestoti - predimno visokite tui kato te sa nai otstrani na chestotnata lenta i sa nai-malki kato amplituda i v tiah se poiaviavat nai-mnogo smushtenia (tova e pri radiopredavatelite) i tova se naricha preemfazis

a deemfazisa e obratnoto - namaliane na tezi chestoti v priemnata strana za da se vuzstanovi originalniat signal...

един MP3 player деемфазис на изходния DAC?

Emphasis: In an effort to improve the already-excellent signal-to-noise ratio of the Compact disc, CDs (as well as digital tapes) can be recorded with emphasis. If it is decided to use emphasis, the recording is made with a high frequency boost (called Emphasis), and during playback, a corresponding high frequency rolloff (called Deemphasis) is applied. Thus, in theory, signal-to-noise is improved. An automatic flag in the PQ subcode tells the CD player when to use deemphasis.

Toest, podobna ideja kato Dolby...Vdiga visokite pri zapis i gi reje pri vazproizvejdane...