What term refers to producing a quavering or warbling sound?

The term that refers to producing a quavering or warbling sound is "trilled." In musical context, a trill is a rapid alternation between two adjacent notes, creating a distinctive sound that resembles a shake or quaver. This quality is often used in music and vocal performances to add expressiveness and complexity to the sound.

In contrast, the other terms specify different types of sounds or effects. "Chimed" refers to the ringing sound made by bells or similar instruments, which does not imply a quavering quality. "Wavered" suggests an oscillation or fluctuation but does not specifically indicate a musical context or the unique sound produced by a trill. "Resonated" describes the amplification or prolonged sound resulting from vibration, without a focus on the quick, alternating quality of a trill. Therefore, "trilled" is the term that aligns most closely with the description of producing a quavering or warbling sound.