Some whistle designers minimized this problem by building resonant chambers of a similar scale.

But significant amounts can be extracted by mirrors and resonant chambers, emerging in the form of a concentrated beam of light.

By attaching a resonant chamber to the basic whistle, it may be tuned to a particular note and made louder.

The human heart not only makes heart sounds, but it also is a set of resonant chambers.

Bleepers use a resonant chamber to increase sound output.

Sound production in all wind instruments depends on the entry of air into a flow-control valve attached to a resonant chamber (resonator).

It contains two small woofers projecting into resonant chambers that strengthen the lows.

While these small resonant chambers are usually not large enough to provide much acoustic amplification, they do change the tone and response of the instrument.

By controlling the combustion specific to each resonant chamber, the pyrophone has, for better or worse, a greater range of variables in play when producing tones.

The tone can be modified by cupping the hands to provide a resonant chamber.