[vorbis] encoding bitrates, different machines...

[Hugo van der Merwe]

I found I have ripped the same CD twice with different machines. Cannot 
remember when, why, or how, but anyway. I've been using jack, here is 
relevant output:

first one:

01/|\enc/|\128/|\[coding @0.67× done,129kbit]
02/|\enc/|\128/|\[coding @0.69× done,124kbit]
03/|\enc/|\128/|\[coding @0.66× done,124kbit]
<etc>

econd one:

01/|\enc/|\128/|\[coding @5.50× done,116kbit]
02/|\enc/|\128/|\[coding @2.24× done,120kbit]
03/|\enc/|\128/|\[coding @1.40× done,121kbit]
<etc>

Note the big difference in bit rate... both is RC3. My best guess at the 
moment is that the former was with a -b setting while the latter was 
with a -q setting. I usually do everything at -q, but it might be that I 
forgot to do so with the former.

It won't be different CPU's (P2 vs. AMD Athlon), would it? There's no 
CPU specific optimisations yet, e.g. selecting 3dnow instructions for 
the latter.

Does 129 and 124kbit look about right for a -b setting, does one get
that kind of range? Here I'm missing that "encoding parameters" tag. 
Hehe.

Both have:

bitrate_upper=none
bitrate_nominal=128031
bitrate_lower=none

Thanks,
Hugo

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