Their buccal cavity is enlarged and dome-shaped, acting as a resonance chamber that amplifies the sound.

It looked rather like a sonic rifle, but no resonance chamber ringed the slim barrel just beyond the stock.

The resonance chamber may also contain a small light ball, usually called the pea, which rattles around inside, creating a distinctive chaotic vibrato sound.

Like all trained speakers, like all Venusians, the psychiatrist had full control of the resonance chambers in his body and head.

Kirk watched as McCoy's body passed back and forth within the scanning rings of the resonance chamber.

The oral cavity still acts as a resonance chamber for the sound.

The Royale is a hollow-bodied archtop with side-by-side resonance chambers meant to mimic the curves of the human ear.

Internal connections between both ears functioned as resonance chambers and improved hearing.

This gives much more flexibility to player, leaving them freer to shape their oral cavity as a resonance chamber to amplify the instrument.

A resonance chamber uses resonance to amplify sound.