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Audio and Video Talk
Digital
Maximising FLAC compression to minimise disk usage
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<blockquote data-quote="lanties" data-source="post: 708745" data-attributes="member: 13832"><p>The only difference that you will experience from different compression levels , and this is all CPU dependent, is that instead of it taking say 5ms to start playing, a more compressed file may now take 30ms to start playing. What will be playing, will be exactly the same. By the way, extra compression has no impact on speed of accessing meta data. This is the next bullshit we often hear that it takes longer for LMS/Roon to index heavily compressed flac files.</p><p></p><p>Compression in it's simplest form is the search for similar patterns and converting them to "macros" e.g ********* maybe compressed to \9*. So 9 characters becomes only three saving 7 "spaces". When the software un-compress it will convert \9* back into *********. Exactly the same as the original. Creating macros from patterns can in itself create new patterns. This is typically what it means by compressing at higher levels. It is the number of iterations through a file to look for new patterns after patterns have been turned into macros. This is a very simplistic explanation but it should be easy enough to understand the concept.</p></blockquote><p></p>
[QUOTE="lanties, post: 708745, member: 13832"] The only difference that you will experience from different compression levels , and this is all CPU dependent, is that instead of it taking say 5ms to start playing, a more compressed file may now take 30ms to start playing. What will be playing, will be exactly the same. By the way, extra compression has no impact on speed of accessing meta data. This is the next bullshit we often hear that it takes longer for LMS/Roon to index heavily compressed flac files. Compression in it's simplest form is the search for similar patterns and converting them to "macros" e.g ********* maybe compressed to \9*. So 9 characters becomes only three saving 7 "spaces". When the software un-compress it will convert \9* back into *********. Exactly the same as the original. Creating macros from patterns can in itself create new patterns. This is typically what it means by compressing at higher levels. It is the number of iterations through a file to look for new patterns after patterns have been turned into macros. This is a very simplistic explanation but it should be easy enough to understand the concept. [/QUOTE]
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Audio and Video Talk
Digital
Maximising FLAC compression to minimise disk usage
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