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how to get the lower bitrates?
amppa
post Jan 12 2002, 19:46
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So, I would like to have mp3 files close to 192 kbps. I listen mostly metal (various types - heavy, power, black, ...) and --alt-preset standard seems to create mostly bitrates of 200-250 (tested with several albums). I consider this to be too high, how should I create the files to get lower rates? Should I use ABR with --alt-preset [rate] or maybe some VBR command line (for example, edited -r3mix), using -V[n] to adjust the bitrates? Any suggestions?
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Dibrom
post Mar 8 2002, 23:42
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QUOTE
Originally posted by mp3fan
Currently [b]--ath-lower x results in an unrecognizable error while using razorlame.  Anyone know why this is?


It's --athlower without the '-' in the middle

QUOTE
Originally posted by kxy
when I use -alt-preset standard -b96 -Y --lowpass 17.5, it got a following warning msg.... 

*** WARNING *** the meaning of the experimental -Y has changed! now it tells LAME to ignore sfb21 noise shaping (VBR) 

I am not really sure how sfb21 noise shaping works, could someone please explain that to me?


sfb21 = the band containing all frequencies above 16khz, in mp3. By using -Y, and disabling noise shaping in sfb21, it has the effect I specified... where it will not "go out of it's way" to encode this material if it requires a signficant jump in bitrate.

QUOTE
[b]Also by using the lowpass would it have any effect on the determination of bits in joint stereo and nspsytune?


Probably not. The chances that the frequencies beyond 16khz could have a significant effect here is extremely slim I think.

QUOTE
What about and the -V3 switch, would it have any effect on the determination of bits in joint stereo and nspsytune OR conflict with the internal switch of alt-preset?


Yes. The -V switches control the global adjustments to masking in LAME, so it would have an effect here. It would also break some of the tunings, but only in the sense that the thresholds would now be "out of whack".
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- amppa   how to get the lower bitrates?   Jan 12 2002, 19:46
- - tangent   I would recommend only using --lowpass (try 17.5) ...   Jan 12 2002, 20:16
- - ami   hi, hmm since ive read, that dibrom listens and en...   Jan 12 2002, 20:25
- - amppa   So, if I got it right, lame --alt-preset [rate] sh...   Jan 12 2002, 21:38
- - NeoRenegade   You got it dead on   Jan 13 2002, 23:46
- - TheBashar   I don't recall ever reading Dibrom say that with h...   Jan 14 2002, 00:56
- - Weiman   How about --alt-preset standard -V 3 -B 256? It gi...   Mar 7 2002, 21:29
- - Dibrom   My stance on this: Lowering the lowpass is by far...   Mar 7 2002, 21:57
- - mp3fan   QUOTE like employing an adaptive lowpass, with a l...   Mar 8 2002, 03:59
- - kxy   Newbie questions... when I use -alt-preset stand...   Mar 8 2002, 08:22
- - Sachankara   I still donīt see why you donīt use --alt-preset 1...   Mar 8 2002, 22:55
- - Dibrom   QUOTE Originally posted by mp3fan Currently [b]--...   Mar 8 2002, 23:42
- - kxy   Thx Dibrom. So despite the sfb21 warning, if some...   Mar 9 2002, 15:32
- - Dibrom   You don't need to use a lowpass when you use -Y. ...   Mar 9 2002, 19:10
- - kxy   Oh yea, of course I don't need to use -y and --low...   Mar 9 2002, 20:50
- - Dibrom   QUOTE Originally posted by kxy To recap, the -Y o...   Mar 9 2002, 21:03
- - mp3fan   Dibrom, QUOTE By using -Y, and disabling noise sh...   Mar 10 2002, 03:10
- - jkeating   You are forgetting about stereo settings! Right no...   Mar 12 2002, 00:04
- - Dibrom   QUOTE Originally posted by mp3fan So by using a -...   Mar 12 2002, 00:21
- - Dibrom   QUOTE Originally posted by jkeating You are forge...   Mar 12 2002, 00:24
- - ErikS   QUOTE Originally posted by Dibrom The reason fo...   Mar 12 2002, 02:28
- - JohnV   QUOTE Originally posted by ErikS No. Sorry for be...   Mar 12 2002, 03:30
- - Delirium   JohnV and Dibrom -- thanks for the explanations, I...   Mar 12 2002, 09:40
- - mithrandir   Considering that MP3s primary function is to reduc...   Mar 12 2002, 17:35
- - mp3fan   QUOTE Also, when I use an --athlower number up to ...   Mar 16 2002, 20:06
- - Dalkus   Reading through the FAQs and other threads I can...   May 4 2003, 16:30
- - SometimesWarrior   Using the -Y switch with --ap extreme carries the ...   May 5 2003, 06:36
- - Dalkus   Thanx for the reply. I'm just thinking that if...   May 5 2003, 13:30


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