QUOTE(Ephebus @ May 30 2005, 10:10 AM)
For a few years I've been encoding my files using CDEx v1.51 as a frontend for LAME 3.92. I know that most of you advocate using the presets, but I stick to the following settings for LAME, no matter if they are overkill or take longer to encode (and will continue to do so):

Those are the only settings that give me a quality index of 100 in EncSpot Pro. No preset setting gives me that.
My question is: I've just replaced the 3.92 DLL in CDEx by the 3.96.1 DLL, and when reencoding some files I was surprised to notice that the average bitrate increased by about 50 Kbps in most of them compared to the 3.92 encoded version with the exact same settings. Is this because of the new Huffmann technique used for q=0? I'm leaving audio quality perception issues aside here, I just want to know the technical reasons why the average bitrate increased.
The other changes reported by EncSpot Pro were:
LAME 3.92: average reservoir=71, lowpass filter=20600, psycho-acoustic model=gpsycho, safe joint stereo=no
LAME 3.96.1: average reservoir=76, lowpass filter=19500, psycho-acoustic model=nspsytune, safe joint stereo=yes
I didn't see a LAME switch (in the docs) for changing the joint stereo mode to safe. Is this a post-3.92 default feature, and maybe the responsible for the higher average bitrate?
They increased because 3.96.1 has different tunings compared to 3.92. Did you notice any quality compromise between 3.96.1 and 3.92? Don't pay much attention to what Encspot throws back at you, instead pay attention to what your ears tell you.
Your attitude is not helping either. The problem is that your comments show that you really don't have a clue about LAME internals, otherwise you would not use the settings you are using with LAME 3.92. You think that your custom settings are *the best* but in fact you are probably just hurting the quality of your MP3 files. Apparently you are not willing to change your mind, even when more experienced people reply to you.
Here is my advice, and don't take it personally: when people tell you that --preset standard/extreme/insane is better than your custom setting, believe them because presets were tested. If you don't want to believe, just use your super-ultra custom setting and stop wasting people's time.