Systems and methods for metering audio and video delays

A system to perform automated audio visual (AV) delay measurement for a system under test (SUT), comprising:

• a test pattern generator to generate a dynamic AV test pattern and connected to a source display device and to one or more destination video display devices;
• at least one light sensor coupled to the one or more destination video display devices;
• the dynamic AV test pattern in its video part contains one or more light sensor areas periodically flashing with a pre-defined period;
• the dynamic AV test pattern with an optional audio part containing a sequence of beep pulses synchronized with light sensor areas flashes;
• an AV capture device having video inputs and optional audio inputs connected correspondingly to the light sensors and audio sensors to capture dynamic AV test pattern and converting intensities of video and optional audio signals into one or more sequences of pulses, wherein all said sequences are gated by a common clock pulse generator having a repetition frequency higher than a repetition period of the AV test pattern;
• an AV delay analyzer coupled to the AV capture device to perform multi-channel delay parameters analysis, wherein video output of the AV delay analyzer is connected to a video reference input through an adapter converting a blue flash component of the test pattern into a sync pulse co-timed with a white flash component for display latency tests.