Lame/Azid Parameters - what are the best ? (part2)

[yosemite]

hi,

first, I wanna thank all of u who was so interested in the thread of "Which parameters do u use for Lame/Azid?"

Because that thread is a little bit out of its topic now ;), I start a new one and have a new question for u too ;) :

OK, the most of u said that the Lame parameter "--alt preset xy" is one of the best ways, I've tried it, its great!
But what is the difference between "--alt -preset xy" and "--alt preset standard xy" ? That's the only thing I dont understand still!

And now to the Azid Parameters, which noboday mentioned in the lase thread: I've read that u should take -z1 -b1 -c normal -L -3db as Azid parameters.
What do u think about these 2 parameters (lame&azid)?

]Here in the short version:

Lame: --alt-preset xy
Azid: z1 -b1 -c normal -L -3db

[Slogra]

I just use: --alt-preset standard ~200kbps
or if i want the file to be a bit smaller: --preset r3mix ~150kbps

But this is for cd quality sound. I don't know what to use when i need an even smaller file. :D

[western shinma]

what is the difference between "--alt -preset xy" and "--alt preset standard xy" ?

Is this what you had in mind?

--alt-preset standard -b96

That last number is the minimum bitrate. You can go all the way down to 32 if you'd like, but that might be going too far. The default is probably too high for doing movies however.

[MxxCon]

if you want detailed info regarding --alt-preset perhaps you should read http://www.hydrogenaudio.org
as for Azid, loadup BeSweetGUI and see what each key does.

[MaTTeR]

My understanding is that if you use any other switches with the --alt-presets then your totally defeating the purpose. The --alt-presets are highly tuned and if try to add any switches then you'll seriously degrade the quality. Go over to the r3mix and hydrogen forums and browse. You'll see what I'm talking about. When I need a small MP3 file and --alt-preset standard or -r3mix are to large then I'll use...

--alt-preset 128

Anything lower than 128 and I could definitely hear the difference in action movies. Movies that are NOT action and mostly dialog then I'll use...

--alt-preset 112

[western shinma]

Here's something that Dibrom posted on his board about using different values for -b with --alt-preset standard:

-b128 doesn't raise bitrates except on mono recordings which would fall below 128kbps. For those mostly rare cases (considering the majority of what people will be encoding) -b32 could be used. Also, according to some tests (don't have the link handy at the moment, I think it's 2BDecided's page), some older MP3 decoders have much more success with VBR files if the lowest bitrate used is 128kbps. These decoders are obviously not compliant to the specification but it's another small reason to default 128. I may change my mind about all of this in the future if I see another convincing argument the other way though.
So there are cases where you might want to lower the minimum. Obviously most movies aren't mono, but you could probably still get away with a lowering -b a little bit.

[Fox Mulder]

Originally posted by MaTTeR
My understanding is that if you use any other switches with the --alt-presets then your totally defeating the purpose. The --alt-presets are highly tuned and if try to add any switches then you'll seriously degrade the quality. Go over to the r3mix and hydrogen forums and browse. You'll see what I'm talking about. When I need a small MP3 file and --alt-preset standard or -r3mix are to large then I'll use...

--alt-preset 128

Anything lower than 128 and I could definitely hear the difference in action movies. Movies that are NOT action and mostly dialog then I'll use...

--alt-preset 112

I agree, but I found that if you use anything less than --alt-preset 119, L.A.M.E.(3.91) resamples an input wave of 48 Khz to 44.1 Khz; and if you use a setting lower than --alt-preset 103 with an input wave of 44.1 Khz, L.A.M.E. resamples it to 32 Khz. Of course this can be avoided with --alt-preset xxx --resample 48 or --resample 44, if you don't want L.A.M.E. to resample.