judder


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judder

Informal chiefly Brit
abnormal vibration in a mechanical system, esp due to grabbing between friction surfaces, as in the clutch of a motor vehicle

judder

A shaking or wobbling effect in a video image. Judder is often caused by the conversion of a 24 frames-per-second (fps) movie to a 30 or 60 fps video format, or when viewing 24 fps content on a 60 Hz monitor. See telecine, flicker and adaptive sync.
References in periodicals archive ?
Through stability analysis they found that the negative friction slope produce clutch judder and that poor pedal acceleration could produce clutch judder even with a positively sloped friction characteristics.
Ideally, frame-rate conversion should interpolate perfect frames, or at least appear sharp and smooth, and with no visible artifacts or judder at normal playback speeds.
She reported a brake judder and had to have the front discs and pads replaced.
At CES 2007, Let It Wave also introduces its advanced frame rate converter, which smartly computes HDTV intermediate frames and eliminates motion blur and flickers while removing film judder, an essential requirement for new 100 and 120Hz LCD and Plasma displays.
Other tips are included on how to avoid brake judder, brake disc warp and how to prevent brake squeal.
The car suffers from large amounts of judder when the top is down but it's fun to drive.
This is clutch judder and a warning that the clutch and flywheel need replacing.
Social worker Louise Lightbody, 27, also from Belfast, said: "I felt a judder and I could see smoke coming out of the wing next to my feet.
Philips HD movie judder cancellation technology increases the clarity of fast-moving HD images, especially film material originating from 24 frames per second, by estimating the motion of moving images and updating the data with additional information to produce the effect of clean, natural motion.
But then Davies drove into the back of him causing him to judder.
I had my back turned at the time but my girlfriend saw the ride judder and people flying off.
Dad Will, 28, said: "We heard a judder and bang, then I heard Euan scream.