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The Basement
Puzzled WHY compressing music damages the sound.,
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<blockquote data-quote="Tim McCulloch" data-source="post: 209403" data-attributes="member: 67"><p>Hi Chris-</p><p></p><p>You conflate data compression (RAR, ZIP) with CODECs that compress data as part of the transcoding.</p><p></p><p>Fraunhofer IIS developed a number of audio CODECs including MP3. You might want to start with them... <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big grin :D" loading="lazy" data-shortname=":D" /></p><p></p><p>MP3 is a "lossy" CODEC - whatever it doesn't keep is discarded (which is why re-coding the stream doesn't improve anything; once it's gone, it's gone). Higher bit rates mean less is thrown away but there are still bits that don't make the cut. Fraunhofer compensates for these losses in a couple of clever ways but at lower bit rates the losses are apparent to those who know what to listen for.</p></blockquote><p></p>
[QUOTE="Tim McCulloch, post: 209403, member: 67"] Hi Chris- You conflate data compression (RAR, ZIP) with CODECs that compress data as part of the transcoding. Fraunhofer IIS developed a number of audio CODECs including MP3. You might want to start with them... :D MP3 is a "lossy" CODEC - whatever it doesn't keep is discarded (which is why re-coding the stream doesn't improve anything; once it's gone, it's gone). Higher bit rates mean less is thrown away but there are still bits that don't make the cut. Fraunhofer compensates for these losses in a couple of clever ways but at lower bit rates the losses are apparent to those who know what to listen for. [/QUOTE]
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