jitter

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Related to Jitter buffer: jittering

jitter

[′jid·ər]
(communications)
In facsimile, distortion in the received copy caused by momentary errors in synchronism between the scanner and recorder mechanisms; does not include slow errors in synchronism due to instability of the frequency standards used in the facsimile transmitter and recorder.
(electronics)
Small, rapid variations in a waveform due to mechanical vibrations, fluctuations in supply voltages, control-system instability, and other causes.

jitter

i. An ECCM (electronic counter-countermeasure) technique in which the radar PRF (pulse repetition frequency) is made to vary in a random manner.
ii. The instability of the signal or trace of a cathode-ray tube.
iii. Small rapid variations in a waveform caused by deliberate or accidental electrical or mechanical disturbances or to changes in the supply voltages, in the characteristic of components, etc.

jitter

Random variation in the timing of a signal, especially a clock.

jitter

A flicker or fluctuation in a transmission signal or display image. The term is used in several ways, but it always refers to some offset of time and space from the norm. For example, in a network transmission, jitter would be a bit arriving either ahead or behind a standard clock cycle. In computer graphics, to "jitter a pixel" means to place it off side of its normal placement by some random amount in order to achieve a more natural appearance. See anti-aliasing. See also jitterati.
References in periodicals archive ?
711 with DTX, RTP, tone generation, and network optimization algorithms including packet loss concealment (PLC), and adaptive jitter buffer (AJB).
While the jitter buffer on a VoIP phone can mask mild delay and jitter problems, severe jitter can overwhelm the jitter buffer, resulting in excessive delay.
LAN analyzers usually offer optional advanced VoIP analysis features, such as the ability to play back conversations, vary the jitter buffer values on playback, diagram the signaling and transport protocols, and compute a voice-quality score, such as mean opinion score.
1pq) -- Upstream and down stream rate limiting -- Adaptive jitter buffer
Network behaviors that can significantly impact VoIP performance include jitter buffer discards and bursts (i.
D2's vPort software platform provides advanced VoIP telephony capabilities such as protocol signaling, soft DSP voice algorithm processing, and advanced voice quality assurance technology such as jitter buffer and packet loss compensation.
Packet data transmission and control is achieved with lost packet detection and reconstruction, jitter buffer management and sequencing and a suite of packet protocols.
726 along with a dynamic/adaptive jitter buffer algorithm, and includes an audio mixer for three-way calling.
eyeBeam enhances this feature set with the addition of acoustic echo cancellation, voice activity detection, adaptive jitter buffer and message waiting indicator.
The award-winning TeamSpirit[R] Voice and Video Engine delivers both standard and proprietary codecs (narrow and wideband), industry-best echo and noise cancelling, PLC, ARS, adaptive jitter buffer and more, all optimized for low latency coupled with high definition voice and video quality.
6,757,292, titled "Automatic Adjustment of Buffer Depth for the Correction of Packet Delay Variation" describe processes that Overture Networks uses in its ISG line of products to automatically size the jitter buffer by measuring the dynamic characteristics of a network, thereby minimizing the time it takes for packets to cross the network.