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F-86
PROCESSEUR NUMÉRIQUE DE CHAMP SONORE (DSP)
Quest-ce quun champ sonore?
Un champ sonore caractérise les réflexions des sons à lintérieur dun volume donné”.
Dans une salle de concert et les autres lieux où se produisent les musiciens, nous
entendons les premières réflexions et les réverbérations mais aussi les sons directs émis
par linstrument de musique. Les différences existant au niveau des premières réflexions
et des réverbérations, signent chaque salle et lui confèrent une qualité sonore propre et
reconnaissable.
Les ingénieurs de Yamaha ont examiné lacoustique de théâtres et de salles de concert du
monde entier et recueilli des échantillons sonores nombreux. Après traitement de ces
données brutes, nos ingénieurs ont tiré les éléments qui ont été introduits dans les
mémoires de cet appareil.
Premières réflexions
Les premières réflexions atteignent nos oreilles très rapidement (50 ms à 80 ms après les sons directs) après nous être renvoyées par un
plafond ou un mur. Ces réflexions apportent des informations vitales à nos oreilles. En réalité, les premières réflexions ajoutent de la clarté
aux sons directs.
Réverbérations
Les réverbérations sont dues à des réflexions multiples les murs, le plafond, le plancher qui se mélangent et se superposent pour former
une sorte de halo sonore. Elles ne sont pas directives et ont tendance à brouiller la clarté des sons directs.
Image des sons réfléchis
209_AZ1(F)085-100 12/26/01, 6:32 PM86
88


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Others manual(s) of Yamaha DSP-AZ1

Yamaha DSP-AZ1 User Manual - English - 110 pages

Yamaha DSP-AZ1 User Manual - English - 110 pages

Yamaha DSP-AZ1 User Manual - German - 110 pages

Yamaha DSP-AZ1 User Manual - Dutch - 110 pages

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Yamaha DSP-AZ1 User Manual - Spanish - 110 pages


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