Dolby is a brand name that became the everyday word for a system that cuts unwanted noise — the hiss and rumble — when you record or play music and film.

Dolby杜比is a brand name that became the everyday word原本是品牌名，後來變成日常用語，for a system that cuts unwanted noise指一種能消除不想要的雜音的系統——the hiss and rumble也就是那種嘶嘶聲和低頻噪音——when you record or play music and film在你錄製或播放音樂和影片的時候。

Ray Dolby built the first famous version for tape in the 1960s; old cassette decks had a Dolby switch. Later the same name covered cinema sound (Dolby Digital, Dolby Atmos): not only less noise, but clearer, bigger sound in a theatre.

Ray Dolby雷伊·杜比built the first famous version for tape in the 1960s在1960年代做出第一個有名的錄音帶版本；old cassette decks老式的卡帶座had a Dolby switch上面就有一個Dolby開關。Later後來the same name同一個名字covered cinema sound也用在戲院音效上，Dolby Digital, Dolby Atmos像Dolby Digital和Dolby Atmos：not only less noise不只是雜音變少，but clearer, bigger sound in a theatre還讓戲院裡的聲音更清晰、更宏大。

People still say a film is “in Dolby” the way they once said a tape had “Dolby on.” It is a proper name, so it keeps a capital D. It is not a style of music, and not a kind of speaker by itself; it is the process (and the company) sitting on top of the recording.

People人們still say a film is "in Dolby"還是會說一部電影是「in Dolby」，the way they once said a tape had "Dolby on"就像以前說一卷錄音帶有「Dolby on」一樣。It它is a proper name是個專有名詞，so it keeps a capital D所以字首D要大寫。It它is not a style of music不是一種音樂風格，and not a kind of speaker by itself本身也不是一種喇叭；it is the process (and the company) sitting on top of the recording而是疊加在錄音上的那個處理過程（還有那家公司）。