-q0 -h and --lowpass setting Options

[lunasnow]

if I use Lame

add -q0 or -h parameter can provide better quality ?

Should I use -q0 or -h setting?


--lowpass or -Y can provide better quality in same bits ?

(ex: "-b320 vs -b320 --lowpass 18" or "-V1.3 vs -V1 --lowpass 18" or "-V2.5 vs -V2 -Y" )

This post has been edited by lunasnow: Dec 27 2012, 15:36

[[JAZ]]

If you use a VBR setting (like -V0, -V2 etc..), the use of -q0 or -h won't make any difference. (It changes nothing)

The change in quality from using --lowpass or -Y is directly related to the signal (i.e. if it matters), and to how the codec can distribute the bits that would have been used by the data filtered (--lowpass) , made less precise (-Y).

In other words, if you use to encode classical music, neither --lowpass nor -Y might help much. If you encode heavy metal or similar, --lowpass or -Y might make quite a difference in bitrate.
If then you shift the quality to compensate for the bitrate, evidently it will have higher quality.