yīn​zhì

sound quality

音质 (音質) yīn​zhì
sound quality noun
the characteristic timbre and overall fidelity of a sound produced by a person, instrument, or audio equipment

His voice has a rich quality and is very magnetic.

Frequency

Movie subtitles
0.720 per million appears in 0% of films
Written text
4.08 per million

Sources

Definitions
CC-CEDICT