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Le son un phénomène vibratoire
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9 Terms
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1
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fréquence fondamentale
fréquence du premier pic dans un spectre dans un son composé
2
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fréquences harmoniques
les autres fréquences d’un son composé
3
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intensité sonore I
puissance par unité de surface transporté par l’onde sonore en W/m
4
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niveau d’intensité sonore L
permet d’utiliser une échelle plus petite et plus proche des sensations auditives
5
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niveau d’intensité sonore L formule
10log(I/Io)
6
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son composé
son constitué de plusieurs harmoniques
7
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son pur
son constitué d’une seule harmonique. Le motif élémentaire est de forme sinusoïdale
8
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puissance d’un son
énergie fournie au phénomène de chaque instant en Watts
9
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