Some security cameras feature ALC, which means the camera can bring out detail in bright or dark areas of an image. If too much sunlight makes an image too dark, ALC can focus on the needed image.
This is a manual adjustment you will find on Auto Iris lenses, and is also known as peak/coverage control. Adjusting this control allows the auto iris circuitry to either take bright spots into greater consideration (peak), bringing out the detail in bright areas, or to take them into less consideration (average) bringing out detail in shadows.
Circuitry used to automatically adjust the audio recording level to prevent excessive volume. Excessive ALC has a tendency to introduce noise and hiss onto the audio tracks. Some equipment include level controls which are switchable between automatic and manual control. Used in video and audio equipment to ensure that output signals are maintained at constant levels in the face of widely varying input signal levels.
Circuitry inside camcorder that adjusts the recorded volume of the recorded sound boosting quiet sounds and cutting down loud noises.
Automatic Light Control. Is a built-in feature of every camera found on AutomatedSurveillance.com. ALC indicates the image sensor's ability to automatically adjust in diverse lighting conditions to yield the most vivid video image possible.
AUTOMATIC LIGHT CONTROL. Process by which the brightness upon the camera pick-up device is automatically adjusted according to the brightness of the scene.
Automatic Light Control. Similar to the function of back light compensation in photography. It is part of the electronics of an automatic iris lens.
Automatic light control. A part of the electronics of an automatic iris lens that has a function similar to backlight compensation in photography.
Automatic Level Control Similar to AGC (Automatic Gain Control), the ALC circuit automatically adjusts the voltage level on camera pick-up tubes to compensate for fluctuations in the level of light on the tube surface.
Automatic Level Control. A circuit which automatically controls the gain of a transmitter so that the output signal level is virtually constant.
automatic loading control which prevents transmitter overload
Automatic Level Control. See Automatic Gain Control (AGC).
Automatic Location Communicator
Airline Link Control. (P1024B). widely used, legacy, old character-oriented, poll-response WAN protocol that uses the the 6-bit IPARS IPARS code. ALC This protoc l is also known as P1024B (SITA designation) or IBM 100. ALC addresses are comprised of IA ( Interchange ddresses ( as) & TA's ( Terminal Addresses ( as).
This allows for users to manually adjust if the camera should see more details in brighter areas or darker areas.
Automatic Level Control. This is a feature of some cameras, that allows the camera to either bring out detail in bright areas of the image, or bring out more detail in the darker areas, depending on how it is set up. This is often useful where the view has a window in the background, where the sunlight is causing the image of the room to be much darker than required.
Photometric control, measures light intensity. Determines the iris reaction sensitivity. Sensitivity is increased when the potentiometer is turned towards PEAK, and decreased when turned towards AVERAGE.
Automatic Level Control. Assigns the amplifier’s output level automatically to ensure a consistent paging level. It keeps loud voices from booming out of the paging system’s speakers and enables people with weak voices to be clearly heard. It also makes it easier to understand people in noisy environments.
Automatic Level Control. Allows the auto-iris circuitry to either take bright spots more into consideration (peak), bringing out detail in bright areas, or less into consideration (average) bringing out detail in shadows.
Automatic Recording Level Control (ALC) controls recording levels of all frequencies low, mid and high to achieve high quality recording.
Automatic level control. A feedback voltage in the transmitter's output amplifier used to prevent amplifier overload. Also used as feedback from a linear amplifier back to the exciter to prevent overdriving.