dulcet

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++dul·cet /ˈdʌlsɪt/ adjective  somebody’s dulcet tones LOW SOUND OR VOICEsomeone’s voice – used humorously 某人悦耳的嗓音〔幽默用法〕 Basil’s dulcet tones could be heard in the corridor. 巴兹尔那 “悦耳” 的嗓音在走廊里都听得见。

Examples from the Corpus

dulcet• All pluck and pomp, it rang throughout the hall in dulcet tones as never before.Origin dulcet (1400-1500) Old French doucet, from douz “sweet”

dul·cet adjectiveChineseSyllable  

Corpus – humorously voice someone’s used

dulcet
dul‧cet /ˈdʌlsət, ˈdʌlsɪt/ adjectivesb’s dulcet tones someone’s voice – used humorously:
    Basil’s dulcet tones could be heard in the corridor.

dul·cetBrE /ˈdʌlsɪt/ 🔊NAmE /ˈdʌlsɪt/ 🔊 adjective [only before noun] (humorous or ironic) sounding sweet and pleasant 甜美的；悦耳动听的；美妙的◆I thought I recognized your dulcet tones (= the sound of your voice). 我想我听出了你那甜美的嗓音。🔊🔊