automatic level control


Also found in: Acronyms.

automatic level control

[¦ȯd·ə¦mad·ik ′lev·əl kən‚trōl]
(electronics)
A circuit that keeps the output of a radio transmitter, tape recorder, or other device essentially constant, even in the presence of large changes in the input amplitude. Abbreviated ALC.
(mechanical engineering)
In an automotive vehicle, a system in which two air-chamber shock absorbers in the rear are fed compressed air by an electric compressor; pressure in the air chambers is determined automatically by sensors to maintain the vehicle at a predetermined height regardless of load.
References in periodicals archive ?
The subject of the Contract is the execution by the Contractor to the Employer modernization of automatic level control and protection control PWC on Tz-2 and Tz-3 in EC Siekierki is performs work and provides brand new materials, parts, apparatus and appliances referred to in Annex 2 model contract 16DFZZ037 and produce technical documentation related to the implementation of the agreement, which is obliged to submit to the evaluation of the Employer.
And Automatic Volume Control boosts the volume level as ambient noise levels increase always maintaining the ideal loudness level without requiring the user to press a volume button while Automatic Level Control dynamically adjusts for varying line and signal levels to give consistent speech quality no matter what the network or phone is used.
The ATS6010MMBC5-H is the next generation SoundClear dual-mic solution that adds highly desirable downlink processing features including Automatic Volume Control and Automatic Level Control into the SoundClear algorithm.
Additional digital filtering options are available in the ADC path, as is an advanced automatic level control (ALC) function with noise gate.
Functions incorporated in the OV6910 CameraChip(TM) include automatic gain control (AGC), automatic exposure control (AEC), gamma correction, automatic level control (ALC) and automatic black level calibration.
A programmable gain amplifier can be used for automatic level control with user programmable hold, attack and decay times.
Designed to work with the Stacked LNB, it has been built with a constant output level, an automatic level control feature that eliminates signal strength fluctuations in long cable runs.
All three products feature automatic level control on the ADC input.
169 automatic level control, automatic noise reduction, integrated debugging and monitoring, extensive in-band signaling tone detection, audio conferencing, announcement storage and playback, and in-path tandem free operation (TFO) capabilities.
Advanced on-chip digital signal processing performs graphic equalization, including enhanced bass boost, 3-D sound enhancement and Automatic Level Control (ALC) for the microphone or line input.
Functions incorporated in the OV7930 CameraChip(TM) include automatic gain control (AGC), automatic exposure control (AEC), gamma correction, automatic level control (ALC) and automatic black level calibration.
8dB accuracy, allowing easy implementation of the accurate automatic level control (ALC) function without additional components.

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