Hi everyone,

From reading a lot of the threads in this forum, I have found that a lot of people that use LAME, use settings that I cannot find in the documentation provided by LAME, such as follows:

--abr 128 -h --nspsytune --athtype 2 --lowpass 16 --ns-bass -8 --scale 0.93

I am not sure what --nspsytune does and what --ns-bass -8 does? Are there any other documentations that I could read about these additional settings? I have tried searching in Google, but I have not got the luck to find the answer to my questions. Thank you very much everyone for taking the time to read this posting, I appreciate it very much.

People were probably using this several years ago.
Now they are using --alt-preset 128 instead.

Information can be found in the documentation that is packaged with 3.90.3.

To answer you question nspsytune is an alternative from the (at the time) default psychoaucoustic model gpsycho. Nspsytune 2 had some work done on it but was not completed.

IIRC Ns-bass is a switch than can be used to reduce distortion in the low frequencies. It should be a negative figure to be used properly

http://lame.sourceforge.net/USAGE

Thank you for your reply everyone .

By the way Gabriel, does that mean that all the settings available with the current version of LAME is in the manual? Because I am currently doing some experimentation and I do not think I will use the preset at the moment . Thank you very much for your time.

No experimental switches or combination of switches are mentioned in the manual, neither will they be in future. However, from command-line help one can know about it.

They are meant for experiments (just like what u'r doing) and feedback (hope that after ur exp u'll give feedback to the dev) so that they become default setting (if they do really good) in next version or completely removed (if they are doing any harm).

Regards,

M

There are certainly more people using the presets now than there were years ago, but there are still many people (probably more so than not) who aren't using the presets. Just look at how many posts there have been on HA recently with people posting long commandline strings, often containing experimental switches.

Out of curiosity, what kind of experimentation are you doing? Also out of curiosity, do you find some sort of quality problem with the presets?

This is quite unlikely.

I think all of the commandline switches that existed when I first created the --alt-presets are still accessible from the standard frontend, even though many combinations clearly resulted in inferior quality. In fact, probably the hardest part about creating the presets in the first place was the fact that there were so many switches, many of which were experimental, and many of which weren't tested very thoroughly in wide varieties of cases. Finding "good" combinations took quite a bit of work.

Despite all of that, these switches are still there (along with the possibility for the same non-optimal combinations), and as far as I can tell, there doesn't seem to be signs of that changing anytime soon.

@ Dibrom

I think you should really try the "+ Quote" button next time