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What are the internal switches of Alt presets?
Oge_user
post Aug 22 2002, 20:22
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Hello to all.
Using the alt preset(s) in the Lame 3.92, i must say that
"alt preset 128 cbr" make a good job avoiding common problems
at this bitrate.
Can someone explain the internal switches or commands used by
alt preset 128 and alt preset insane?
And, if possible, the meaning?


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Kitanai
post Aug 27 2005, 15:55
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Thanks for the warm welcome smile.gif

I am going to backup my CD collection and I would like to do so in very high quality - however, CBR 320 seems overkill to me. So I go for the tested LAME 3.90.3 and --alt-preset extreme.

I tried later versions with VBR and q=0. My question is, how --alt-preset extreme in 3.90.3 compares to 3.96.1 and the setting -v -V 0 -q 0 ?
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timcupery
post Aug 27 2005, 16:21
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QUOTE (Kitanai @ Aug 27 2005, 09:55 AM)
I am going to backup my CD collection and I would like to do so in very high quality - however, CBR 320 seems overkill to me. So I go for the tested LAME 3.90.3 and --alt-preset extreme
I tried later versions with VBR and q=0. My question is, how --alt-preset extreme in 3.90.3 compares to 3.96.1 and the setting -v -V 0 -q 0 ?
*

@Kitanai: First, there's no need to specify -v when you're already specifying -V0 (which is equivalent to --preset extreme, as it seems you've already discovered).
Second, I (and most others in these forums) would recommend against specifying a different -q value when already specifying a preset VBR setting. The people who set these up know what they're doing, and specifying -q 0 isn't going to improve the encode. More generally, even if you're designing your own commandline switch, -q0 might not be the way to go... the Lame helpfile says the following:
QUOTE
-q 0 and -q 1 are slow and may not produce significantly higher quality

Finally, the -V settings weren't implemented until 3.95, so -V0 won't work in 3.90.3, or at least it won't get you the equivalent of --preset extreme.

Most people on here would recommend that you use 3.97a11 -V0 --vbr-new (a.k.a. --preset fast standard) which will probably be slightly better in quality - and a whole lot faster - than Lame 3.90.3 --preset extreme. Lame 3.90.3 was specifically optimized for --preset standard, and is still recommended specifically for that switch, because it's been tested so much. (Even so, 3.96.1 is used by more people, and 3.97a11 used by even more people and has tested extremely well when using the --vbr-new switch.)


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God kills a kitten every time you encode with CBR 320
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Posts in this topic
- Oge_user   What are the internal switches of Alt presets?   Aug 22 2002, 20:22
- - lucpes   I'd recommend --alt preset standard; generally if ...   Aug 22 2002, 20:47
- - JohnV   QUOTE Originally posted by Oge_user Can someone e...   Aug 23 2002, 09:20
- - Oge_user   Verbose? Sure! Thanks a lot for the support.   Aug 23 2002, 10:42
- - dreamliner77   1) I thought if you used, say --alt-preset cbr 128...   Aug 23 2002, 10:47
- - JohnV   QUOTE Originally posted by dreamliner77 1) I thou...   Aug 23 2002, 11:04
- - Kblood   Well, I surely thought there was some code tweakin...   Aug 23 2002, 12:35
- - dev0   QUOTE Originally posted by Kblood Well, I surely ...   Aug 23 2002, 12:55
- - JohnV   QUOTE Originally posted by Kblood Well, I surely ...   Aug 23 2002, 13:02
- - Kblood   Once again, the hordes of experts lurking in HA ri...   Aug 23 2002, 13:11
- - westgroveg   I wanted to know what lowpass is used for standard...   Aug 23 2002, 23:23
- - Delirium   QUOTE Originally posted by westgroveg I wanted to...   Aug 24 2002, 00:57
- - Oge_user   Thanks a lot for the support!   Aug 30 2002, 16:46
- - Kitanai   I searched the FAQ and WIKI some more and come up ...   Aug 27 2005, 15:28
|- - AtaqueEG   QUOTE (Kitanai @ Aug 27 2005, 08:28 AM)I sear...   Aug 27 2005, 15:42
- - Kitanai   Thanks for the warm welcome I am going to back...   Aug 27 2005, 15:55
|- - timcupery   QUOTE (Kitanai @ Aug 27 2005, 09:55 AM)I am g...   Aug 27 2005, 16:21
- - Kitanai   Thanks for your thoughts on this issue - it basica...   Aug 27 2005, 16:33


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