gogo-no-coda Ver.3.11 Options

[kennedyb4]

A quick question about the lametag option.

With this feature activated, will encspot identify the file as lame 3.88 or some other version of Lame? Or will it identify itself as a gogo file?

If it says that the file is something it is not, that doesn't seem like much of a feature.

[Gabriel]

It will be identified as Lame 3.92 because Gogo identifies itself like this. This should be solved in new Gogo versions.

[hans-jürgen]

The file size should be around 190-200 kbps. I know Lame is pretty fast but I want Xing-speed and Lame quality. Possible? If so, which settings?

Now I don't know anything about Gogo, but if it's true that it's basically an assembler-tuned LAME v3.88, I would guess that it sounds quite similar to LAME v3.89 which I happen to know quite well, because I helped to integrate it into MP3Coder, a Win3x GUI for several DOS tools.

As this was the last version without the --alt-presets, you're stuck to the older presets, if you don't want to use your own command line options. A good overview of these presets and their equivalent parameters can be found with --preset help on the command line (sorry for widening everyone's screen solution in this thread now):

CODE

LAME version 3.89 (http://www.mp3dev.org/)

Presets are shortcuts for common or carefully tuned settings.
Several separate collections of preset profiles are available.

----------------------------------------------------------------

Basic- presets covering a wide span of qualities and bit rates
      These presets may be combined with -v for VBR MP3s.

                phone phon+   lw  mw-eu mw-us   sw    fm  voice radio  tape  hifi   cd  studio
===============================================================================================
--resample           8    11    11    11    16    11    32    24                              
--highpass       0.125   0.1                                                                  
--lowpass          3.4     4     4     4   7.6     4    15    12    15    18    18            
--lowpass-width      0     0     0     0     0     0     0     0     0   0.9   0.9            
--noshort          yes   yes    no    no    no    no    no   yes    no    no    no    no    no
-m                 -mm   -mm   -mm   -mm   -mm   -mm   -mj   -mm   -mj   -mj   -mj   -ms   -ms
-q                 -q5   -q5   -q5   -q5   -q5   -q5   -q3   -q5   -q3   -q3   -q5   -q5   -q5
-b                  16    24    24    24    40    24   112    56   128   128   160   192   256

-- PLUS WITH -v -------------------------------------------------------------------------------
-V                   6     4     3     3     3     3     3     4     3     3     2     1     0
-q                 -q5   -q5   -q5   -q5   -q5   -q5   -q3   -q5   -q3   -q3   -q2   -q2   -q2
-b                   8    16    16    16    24    16    80    40    96    96   112   128   160
-B                  24    32    56    56   112    56   256   112   256   256   320   320   320
-----------------------------------------------------------------------------------------------
EXAMPLES:
a) --preset fm
   equals to: -mj -b112 --resample 32 --lowpass 15 --lowpass-width 0 -q3
b) -v --preset studio
   equals to: -ms -V0 -b160 -B320 -q2

I've cleaned up this table for my own purposes, so it probably looks a bit different from yours, if Gogo will put out something similar at all.

As you can see, your aim is probably best achieved with --preset cd -v, so you would use a variable bitrate with a minimum of 128 and a maximum of 320 kbps, averaging somewhere at 192 kbps. This setting already sounded very good to me, but I did no comparisons with a newer LAME version and --alt-preset standard, because I lost interest in these high bitrates soon thereafter.

A little flaw with the high-range presets is also shown in this table: when not using -v together with --preset hifi, cd or studio, the -q setting is defaulted to -q5 which is of course wrong, because it should rather be -q2, -q1 and -q0. But this is not the case when you combine these presets with a variable bitrate.

This post has been edited by hans-jürgen: Nov 30 2002, 19:37

[Gabriel]

Sorry, but gogo do not offer presets.

[john33]

Sorry, but gogo do not offer presets.

Gabriel is quite right, no presets in GoGo.

[hans-jürgen]

Sorry, but gogo do not offer presets.

Gabriel is quite right, no presets in GoGo.

So I guess Gogo doesn't have any presets?

OK, then he would have to use the command line parameters that make up the suggested CD preset with VBR: -V1 -b128 -B320 -k, or do they also have different names in Gogo?

[DigitalDictator]

Whoaaa... I really don't like to fiddle around with command lines. I tried the new gogo together with CDex and I played around with some of the few options available. q=0 and psychoacoustic-box checked. Dunno... I didn't think it was much faster than Lame really. The quality it provided was ok as far as I could tell. I'll probably stick with Lame :-)

And yes, EncSpot v1.0 lets you know when you have a file encoded with gogo. It says something like gogo >3.XX or >3.8X. Can't remember, I deleted the file.

BTW, a file encoded with FastEnc (vbr, not the buggy one) around 180-190 kbps, how good is it compared with Lame? I was baffled how fast it is.

[hans-jürgen]

q=0 and psychoacoustic-box checked. Dunno... I didn't think it was much faster than Lame really. The quality it provided was ok as far as I could tell. I'll probably stick with Lame :-)

As I already mentioned, I don't know Gogo, but I assume "q=0" probably means the same as in LAME for CBR which is the best but also slowest setting concerning the psychoacoustic model in use. So it's no wonder that you noticed a slow-down with this setting.

Speaking of VBR settings in LAME, "q=0" can be misunderstood, because the command line would afford -V0 for the highest quality VBR setting, but the LAME display would both show "q=0" for this and also "q=2" for the psy model setting. I think this hasn't changed in newer LAME versions, but I'm too lazy to check it right now.

BTW, a file encoded with FastEnc (vbr, not the buggy one) around 180-190 kbps, how good is it compared with Lame? I was baffled how fast it is.

As far as I know, there haven't been any serious listening tests with these codecs at those high bitrates yet, so you would probably have to trust your own ears - which some people obviously just can't do...

[DigitalDictator]

Thanx. You're right, in the end, you just have to trust your ears. I actually think the FastEnc provides very good sounding files. I haven't decided which one to use, Fastenc or Lame. I don't think I'll give Gogo another try.

[SometimesWarrior]

I made some speed tests with Gogo and Fastencc a while back. They may be somewhat relevent...

http://www.hydrogenaudio.org/forums/index....1592#entry15227

[Oge_user]

Sorry, but gogo do not offer presets.

But why don't include the polyphase lowpass filter in GoGo?
It will help to increase the quality..

And maybe some automatic preset should be included too; this because a lot of people still use GoGo and simple presets like -192 or -160 will make easier the encoding.