Definitions for "Variable Bit Rate"
Keywords:  vbr, bursty, cbr, bitstream, codec
Data compression technique that produces an output data stream varying between fixed minimum and maximum rates, with bandwidth decreasing or increasing depending on the complexity of the fixed rate incoming data.
A type of telecommunications service characterized by a service bit rate specified by statistically expressed parameters that allow the bit rate to vary within defined limits.
Information that is represented in a digital form by clusters of bits (rather than a constant stream of bits) is said to have a variable bit rate. Most data applications generate VBR traffic. Compare with constant bit rate.
Provides a specified throughput capacity but data is not sent evenly. This is a popular choice for voice and videoconferencing data.