Un haut-parleur est un appareil qui restitue un signal \u00e9lectrique \u00e0 un signal sonore, et l'authenticit\u00e9 de la restauration sera un crit\u00e8re important pour \u00e9valuer les performances du haut-parleur.<\/p>\n
Selon diff\u00e9rents principes sonores et structures internes, les haut-parleurs peuvent \u00eatre divis\u00e9s en plusieurs types : invers\u00e9s, ferm\u00e9s, plats, en cornet, en labyrinthe, etc. Les formes les plus importantes sont ferm\u00e9es et invers\u00e9es.
\nLe haut-parleur ferm\u00e9 consiste \u00e0 installer le haut-parleur sur le bo\u00eetier ferm\u00e9, et l'efficacit\u00e9 est relativement faible\u00a0;
\nLa diff\u00e9rence entre un haut-parleur ventil\u00e9 et un caisson \u00e9tanche r\u00e9side dans son \u00e9vent circulaire \u00e0 l'avant ou \u00e0 l'arri\u00e8re. Fonctionnant selon le principe du r\u00e9sonateur de Helmholtz, il pr\u00e9sente les avantages d'une sensibilit\u00e9 \u00e9lev\u00e9e, d'une grande tol\u00e9rance en puissance et d'une large plage dynamique. L'onde sonore \u00e0 l'arri\u00e8re du haut-parleur \u00e9tant \u00e9galement lib\u00e9r\u00e9e par l'\u00e9vent guide de phase, son rendement est sup\u00e9rieur \u00e0 celui d'un caisson \u00e9tanche. De plus, le m\u00eame haut-parleur install\u00e9 dans un caisson inverseur adapt\u00e9 produira une pression acoustique basse fr\u00e9quence sup\u00e9rieure de 3 dB \u00e0 celle obtenue dans un caisson ferm\u00e9 de m\u00eame volume, ce qui am\u00e9liore les performances de la partie basse fr\u00e9quence.<\/p>\n
C\u2019est donc \u00e9galement une raison importante pour laquelle le bo\u00eetier onduleur est tr\u00e8s populaire.<\/p>","protected":false},"excerpt":{"rendered":"
A speaker is a device that restores an electrical signal to a sound signal, and the authenticity of the restoration 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