• Noise

• We call it noise, but it really is not. The problem is with varying broadcast video standards over the years. Video black was often 7.5% white (call the setup). A grey "black" generates nasty artifacts when compressed to MPEG2.

• Layer 1 - Each SVR tape is primarily composed of individual contributions. Each of these conributions as they were submitted had specific signal characteristics.

• Layer 2 - To complicate matters, each contribution may be composed of one or more pieces. Each of those pieces may have come from film, video, a computer, sometimes video shot right off the video monitor with a camera (which may be film or video). Therefore, each subpiece would have its own signal characteristics.

• Click on the next button to learn more about problems caused by correction.
• Setup is typically 1.5% to 7.5% (black is grey)

• High end luminosity blowouts (highs are superwhite)

• High end saturation (red most often oversaturated)

• Telecine poorly done - old film converted to video

• A single contribution can vary radically in luminosity and saturation (which may have one or more pieces)

• Each piece can vary radically in luminosity and saturation (which may be from film, video, CG or off a monitor)

• 60 Hz Hum bars - often caused by poor grounding or ground loops in the equipment.