bitrate
Noun
Meaning
bitrate (plural bitrates)
(computing, telecommunications) The frequency at which bits (binary digits) pass a given physical or metaphorical point, measured in bps (bits per second).
Synonyms
Related terms
Anagrams
Examples
AAL2 through AAL4 are used for variable bitrate (VBR) services, and AAL5 for data.
A more sophisticated MP3 encoder can produce variable bitrate audio.
Average bitrate is a type of VBR implemented as a compromise between the two: the bitrate is allowed to vary for more consistent quality, but is controlled to remain near an average value chosen by the user, for predictable file sizes.
Early on bitrate was the prime and only consideration.
Files encoded with a given quality setting should have the same quality of sound in all versions of the encoder, but newer versions should be able to achieve that quality with a lower bitrate.
For purposes of comparison, CDs are encoded at 1411.2 kbit/s, and lossless encoders can encode most CDs below 1000 kbit/s, with significant bitrate reduction for easier-to-encode content such as voice.