visual reference for the default viseme/phoneme groups?

[Fennecai]

It is not really possible to create character lip poses for a self-made model that are accurate without a visual reference, and the current descriptions in the default phoneme table do not suffice without extensively cross-referencing the part of the json that is not visible within blender (the actual phonemes.)

Is there a visual reference somewhere? The IPA symbols linked in the default json do not seem to have the complete information, or its obscured in a way I can not understand in a practical manner. For instance, what does "C" mean? its not apparent where its listed in the linked document, and the default description "c d g k r s t x z" does NOT help because some of those letters can be pronounced multiple different ways, like how g can make either "Jerry" sound or a "garry" sound.

If theres no currently existing visual reference, May i propose that the default json's groups section be edited as follows to add more useful descriptions? (disclaimer: these might be not accurate but you get the gist of what im saying anyway probably)

"groups": [
    {
      "name": "A",
      "description": "s**ee**, n**ea**t, m**a**d, f**a**r"
    },
    {
      "name": "L",
      "description": "**l**amb, si**ll**y, fa**ll**"
    },
    {
      "name": "W",
      "description": "**w**inter, flo**w**er, a**h**ead"
    },
    {
      "name": "C",
      "description": "**t**all, **g**ive, **z**ebra, **st**ar"
    },
    {
      "name": "TH",
      "description": "**th**in, **th**ere, brea**th**e"
    },
    {
      "name": "N",
      "description": "**n**ickel, si**ng**er"
    },
    {
      "name": "M",
      "description": "**p**each, **b**ill, ha**mm**er"
    },
    {
      "name": "F",
      "description": "**ph**one, ra**ff**le, **v**ideo"
    },
    {
      "name": "EE",
      "description": "b**e**lieve, cinn**a**mon, s**u**rround"
    },
    {
      "name": "O",
      "description": "p**oo**l, thr**ow**, c**o**rn, l**ou**d"
    },
    {
      "name": "U",
      "description": "b**u**sh, l**u**nch, c**ue**"
    },
    {
      "name": "SH",
      "description": "**sh**ell, **g**enre, **j**ump"
    }
  ]

[blackears]

The github repo has the image /art/images/mouth_positions.jpg which provides a mouth position chart for the default phoneme table. I suppose I should add it to the docs.

I like your suggestion for changing the descriptions to something easier to understand, but I might do it a little bit differently. In any case, I'm going to need to update the export process before I can work on the next release.

I've also updated the docs, so you should be able to see the moth chart on the main page now.