Circumaural type

...Head-mounted headphones are called headphones, and are divided into closed and open types. Closed headphones are divided into circumaural types, which cover the area around the earlobe with earmuffs, and supraaural types, which are pressed against the earlobe, and are designed to minimize sound leakage. They also have a soundproofing effect against external noise, so they are used as monitors at recording sites, etc.

*Some of the terminology that refers to "circumaural type" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…載頭型はヘッドホンheadphoneと呼ばれ，密閉型と開放型に分けられる。密閉型には耳当てで耳介の周囲を覆う耳覆い型circumaural typeと耳介の上から押し当てる耳当て型supraaural typeとがあり，できるだけ音の漏洩（ろうえい）を少なくしている。外部騒音に対する遮音効果もあるので，録音現場などのモニターなどに用いられる。…

※「circumaural type」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報