A cue tone is a message consisting of audio tones, used to prompt an action.

The solenoid is driven by the output of the radio control receiver, which is an audio tone or tones.

A suitable transmitter need only generate a number of audio tones.

Theo made an adjustment to the ear piece which translated the signals from his cane into audio tones.

The audio tone makes the carrier pulses audible, and they are heard as "beeps" in the speaker.

All of these units use an audio tone as the biofeedback.

The returned light was converted to an audio tone that increased in amplitude as the distance to the obstacles was reduced.

Most repeaters are remotely controlled through the use of audio tones on a control channel.

Can machines that produce flickering lights and synchronized audio tones similarly help you relax?

The audio tones, so crucial in the early stages of my development, had ceased.