While the ability to create continuous tones may have once been a significant advantage, inkjet printers are catching up.

Only at the 720-dot resolution did faint bands occasionally reveal themselves in continuous tones.

There were two programmable continuous tones: all radios on a single system used the same tone.

Circular breathing is a technique used by players of some wind instruments to produce a continuous tone without interruption.

He could hear nothing now except a single thin, continuous tone, nor did he care.

A continuous tone sounded in the crew headsets of the lead Blackhawk.

These prints are true photographs and have continuous tone in the image detail.

Some function tones are sent without the continuous low-level tone.

There was a long continuous tone; I was starting to think I'd been cut off again.

A continuous tone may be heard when the vehicle is extremely close, often warning a driver to stop immediately to avoid collision.