Bit rate: Difference between revisions
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{{wikipedia|MP3#Bit rate|Bit rate}} | {{wikipedia|MP3#Bit rate|Bit rate}} | ||
The '''bit rate''' or '''bitrate''' of media measures the bits used to store the data per second (kilobits per second, kbit/s or kbps). It is formally defined as the product of (bits per sample) × (samples per second). | The '''bit rate''' or '''bitrate''' of media measures the bits used to store the data per second (kilobits per second, kbit/s or kbps). It is formally defined as the product of (bits per sample) × ([[sample rate|samples per second]]). | ||
A '''constant bit rate''' or '''constant bitrate''' (CBR) is a bit rate that does not change. | A '''constant bit rate''' or '''constant bitrate''' (CBR) is a bit rate that does not change. | ||
Revision as of 06:44, 4 April 2019
The bit rate or bitrate of media measures the bits used to store the data per second (kilobits per second, kbit/s or kbps). It is formally defined as the product of (bits per sample) × (samples per second).
A constant bit rate or constant bitrate (CBR) is a bit rate that does not change.
A variable bit rate or variable bitrate (VBR) is a bit rate that varies depending upon the complexity of the data.
Some common bit rates for mp3 files are 128 kbit/s (standard), 192 kbit/s (medium quality), 256 kbit/s (high quality) and 320 kbit/s (highest quality).
A low bit rate (below about 128 kbps) makes for poor audio quality.