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- <h2 class="hilight">LAME - Variable Bit Rate</h2>
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- <p>Suggested usage:</p>
- <blockquote class="code">lame -V2 input.wav output.mp3</blockquote>
- <p>
- In Variable Bitrate (VBR) coding, the user chooses a desired quality level
- instead of a bitrate. A correct implementation should be able to maintain the
- same quality perception, changing the bitrate to a higher or lower one whenever
- the audio file is more or less complex. With MP3, this is not always possible.
- </p>
- <p>
- VBR encoding is the logical way of encoding data. General data compressors (like
- .zip and .rar) are VBR, as lossless codecs are as well. Being able to indicate
- a quality value, the encoder decides for each frame, which is the most appropiate
- bitrate to keep it.
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- The main advantage of using VBR is that the encoder will use the smallest amount
- of bytes needed to keep the asked quality. The inconvenience is that the
- file size is quite unpredictable, and can change from file to file in more than
- 50kbps. (or nearly double the size, with different genres and quasi-mono content)
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