A loudspeaker is an abbreviation of loudspeaker, and is also called a loudspeaker or a loudspeaker. It is a device that converts an electric signal into a corresponding mechanical signal using electromagnetic or electrostatic coupling, and then converts it into sound by connecting it to a diaphragm, cone, horn, etc. Depending on the principle, there are magnetic speakers, dynamic speakers, condenser speakers, etc., as well as special ones for high frequencies such as magnetostrictive and dielectric types. In terms of structure, they are broadly classified into cone types, where the cone-shaped diaphragm is in direct contact with the air, and horn types, where the diaphragm is in contact with the air through a horn. The former is generally further equipped with a flat baffle, cabinet, horn, etc. to improve the acoustic effect. In general, it is difficult to make a single speaker that reproduces the entire range of audible frequencies with high fidelity, so a combination of speakers dedicated to ultra-high, high, mid, low, and ultra-low frequencies with narrow ranges of sound but good characteristics is used. Depending on how many speakers are combined, they are called two-way speaker systems, three-way speaker systems, etc. In addition, the ultra-high range is called a super tweeter, the high range is called a tweeter, the mid-range is called a squawker (also called a midrange), the low range is called a woofer, and the ultra-low range is called a super woofer. → Related item orientation Source : Heibonsha Encyclopedia About MyPedia Information |
ラウドスピーカー(loudspeaker)の略で拡声器または高声器ともいう。電磁結合や静電結合等を利用して電気信号をそれに応じた機械信号に変換し,さらに振動板,コーン,ホーン等に連結して音声に変換する装置。原理の違いによってマグネチックスピーカー,ダイナミックスピーカー,コンデンサースピーカー等のほか,磁気ひずみ形,誘電体形等高音域の特殊なものなどがある。また構造上からは,コーン状振動板が直接空気に接しているコーン形,振動板がホーンを通して空気に接しているホーン形に大別される。前者は一般に音響効果を高めるために,さらに平面バッフル,キャビネット,ホーンなどがとりつけられる。一般に可聴周波の全音域を高忠実度に再生する単体スピーカーの製作は困難なので,音域は狭いが特性のよい超高・高・中・低・超低音域専用のスピーカーを組み合わせて使用されている。いくつ組み合わせるかによって,ツーウェースピーカーシステム,スリーウェースピーカーシステムなどと呼ぶ。また,超高音域をスーパーツィーター,高音域をツィーター,中音域をスコーカー(ミッドレンジとも),低音域をウーハー,超低音域をスーパーウーハーという。 →関連項目指向性 出典 株式会社平凡社百科事典マイペディアについて 情報 |
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