4.1

En audiophonie, le 4.1 désigne un système de reproduction phonique à cinq canaux. Chaque canal est matérialisé par une enceinte spécifique. Le chiffre 4 de 4.1 correspond aux 4 enceintes généralement de petite taille. Seul le caisson de basse, qui correspond au chiffre 1 de 4.1, peut avoir une taille importante.

Les canaux

  • Deux canaux latéraux avant, notés L et R (de l'anglais Left et Right);
  • Deux canaux latéraux arrière, notés Ls et Rs (Left surround et Right surround);
  • Un canal subwoofer (infrasons), noté LFE (Low Frequency Effects).

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