Robin Bowes;582718 Wrote: > On 14/10/10 02:40, Wombat wrote: > > I sadly don´t have these files to compare. I read several people > playing > > with these. It looks like EMI didn´t do the 24/192 to 16/44.1 and > > 24/44.1 with treating it as equal as possible. The dithernoise is > some > > strongly noise shaped dither and the 24bit files are 0.2dB louder for > > whatever reason. Good dithering alone may excuse some 0.02db but not > > 0.2db. > > I just used sox to convert "Here Comes The Sun" from 24-bit to 16-bit > and re-calculated replaygain (using metaflac). > > Convert command: > sox 24-bit.flac --bits 16 16-bit.flac > > Results: > > Original 16-bit file (ripped from CD): > comment[10]: REPLAYGAIN_TRACK_GAIN=-3.93 dB > comment[11]: REPLAYGAIN_TRACK_PEAK=0.95849609 > > 24-bit file from USB stick: > comment[13]: REPLAYGAIN_TRACK_GAIN=-4.14 dB > comment[14]: REPLAYGAIN_TRACK_PEAK=0.98062515 > > 16-bit file converted from 24-bit file: > comment[13]: REPLAYGAIN_TRACK_GAIN=-5.34 dB > comment[14]: REPLAYGAIN_TRACK_PEAK=0.98117065 > > So, either my convert command is wrong, or it's reasonable to expect a > converted 16-bit file to have a different peak level than the 24-bit > source. > > R. > -- > "Feed that ego and you starve the soul" - Colonel J.D. Wilkes > http://www.theshackshakers.com/
According to the man page you can see what options sox is using with -V, turn off dithering entirely with -D, as well as manually choose various dithering options (e.g. dither -s). You can also adjust the gain manually, so you could force the two files to have the same peak level. http://sox.sourceforge.net/sox.html -- opaqueice ------------------------------------------------------------------------ opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=72852
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