Originally of a voice: clear and resonant. In later use more generally of sound, esp. musical sound: clear, ringing, and typically high-pitched…

Of sounds, voice: Ringing, pure and well-defined, unmixed with dulling or interfering noises; distinctly audible.

Strong, distinct, or clear in sound. Obsolete.

Sharp to other senses; distinct, vivid. to the hearing. Obsolete.

Shrill, clear-sounding.

Of words, diction, etc.: clearly audible; precisely enunciated.

figurative. Of music or other sound: clear and pure in tone.