His voice sounds soft.

他的声音听起来软软的。

youdao

Lanolin: it sounds soft and comforting, like the kind of fluffy material you'd use to protect a grazed knee.

羊毛脂：听起来让人感觉柔软舒服，就像您平日用的那松软的、附着绒毛的护膝。

youdao

But if to choose one, I prefers Chinese. The northern sounds very "rolling" and the southern sounds natural. To me, Chinese sounds soft and elegant.

但是如果非要选择一个，我会选择汉语，中国的北方人说话听起来很带劲，而南方人说话很自然。对我来说汉语的声音轻柔飘逸。

youdao

At its worst, this produces the alcoholic beverage equivalent of elevator music, the Soft Sounds of Lager.

FORBES: Czech Mate

The soft sounds of music and speech are amplified in the enhancement mode.

ENGADGET: Etymotic Music?Pro 9-15 earplugs bring high-end hush to audiences, lets us enjoy speed metal safely

Water running through the reeds in the canal beside them made soft gulping sounds as it swirled along.

NEWYORKER: Nawabdin Electrician