June 1999: The first variable bitrate implementation is released.

May 2007: default variable bitrate encoding speed is vastly improved.

It enables for constant and variable bitrate.

However, bitrate will not vary as much as in variable bitrate encoding.

Compare with variable bitrate.

Note that the choice of a variable bitrate (VBR) method only affects the encoding process.

It also supports variable bitrate (VBR) encoding for download-and-play scenarios.

Some codecs can use GSM networks, and some have variable bitrate to compensate for poor connections.

Variable bitrate (VBR) is a strategy to maximize the visual video quality and minimize the bitrate.

It is capable of single-pass and multi-pass Constant bitrate and Variable bitrate encoding.

Includes a rather complex, rarely used, and poorly supported (by MP2 players) variable bitrate (VBR) mode.

Variable Bitrate (VBR)

On fast-motion scenes, a variable bitrate uses more bits than it does on slow-motion scenes of similar duration, yet achieves a consistent visual quality.

AAL2 is a variable bitrate, connection-oriented, low latency service originally intended to adapt voice for transmission over ATM.

Commonly during explosions, flames, flocks of animals, and in some panning shots, the high-frequency detail leads to quality decreases or to increases in the variable bitrate.

Variable bitrate (VBR) is a term used in telecommunications and computing that relates to the bitrate used in sound or video encoding.

Given two files of identical sizes, the one encoded at an average bitrate should look better than the one encoded with a fixed quantizer (variable bitrate).

It outputs a variable number of samples, using a bit buffer to enable this variable bitrate (VBR) encoding while maintaining 1152 sample size output frames.

As it is a form of variable bitrate, this allows more complex portions of the material to use more bits and less complex areas to use fewer bits.

The issue was resolved when, on the 3 June 2010, the BBC introduced variable bitrate encoding and fixed previous problems with mixing, fading and noise in pictures.

The latter allows one wideband radio signal to carry a multiplex consisting of several radio-channels of variable bitrate as well as data services and other forms of media.

AVI cannot contain some specific types of variable bitrate (VBR) data reliably (such as MP3 audio at sample rates below 32 kHz).

Importing of audio CDs into MP3 or AAC formats can also be accomplished using variable bitrate (VBR) encoding.

It was available in two versions: the Basic Edition encoder/decoder built into QuickTime 3 and Developer Edition which enabled advanced encoding features and two-pass variable bitrate.

Recently, RealNetworks has developed a new container for VBR (variable bitrate) streams, named RMVB (RealMedia variable bitrate).