automatic gain control

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automatic gain control (AGC),

a feature of some hearing aids that reduces amplification at high-input intensity levels.

au·to·mat·ic gain con·trol

(AGC) (aw'tō-mat'ik gān kŏn-trōl')
A feature of some hearing aids that reduces amplification at high-input intensity levels.
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References in periodicals archive ?
The device includes a one-step AGC circuit that drops the LNA gain by 35 dB when the RF input signal is greater than -57 dBm.
Figure 11 shows the AGC circuit diagram in the FMCW altimeter.
With a simple NPN driver, the VG024 amplifier is ideal for AGC circuits in transmitters and receivers.