Lossy format conversion
Posted Dec 10, 2011 15:20 UTC (Sat) by corbet
In reply to: Improving ext4: bigalloc, inline data, and metadata checksums
Parent article: Improving ext4: bigalloc, inline data, and metadata checksums
Pretty far off-topic, but: it is a rare situation indeed where the removal of information will improve the fidelity of a signal. One might not be able to hear the difference, but I have a hard time imagining how conversion between lossy formats could do anything but degrade the quality. You can't put back something that the first lossy encoding took out, but you can certainly remove parts of the signal that the first encoding preserved.
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