卡拉OK inline-fx（内联特效）可以用来给打过k的时间轴的不同部分分配不同的特效。
inline-fx标记本身并不会有任何影响，只有当应用可以识别它的卡拉ok特效脚本时才会应用于打了k的轴。
内联特效标签是一个（无效的）ASS特效标签，格式是\-特效名，其中 特效名 是内联特效所定义的。
和普通特效标签一样，内联特效标签同样只会影响其后的音节，直到下一个内联标签为止。
一行的开始会重设为无内联特效。
这是一行带内联特效标签的卡拉OK字幕：
{\k40}zu{\k20}t{\k42}to {\k32\-paint}e{\k17}ga{\k45}i{\k32}te{\k26}ta {\k24\-cloud}yu{\k55}me这些音节会被分配如下的内联特效：
| Syllable | Inline-fx |
|---|---|
| zu | (blank) |
| t | (blank) |
| to | (blank) |
| e | paint |
| ga | paint |
| i | paint |
| te | paint |
| ta | paint |
| yu | cloud |
| me | cloud |
如果你用卡拉OK模版执行器来制作特效，你可以在模版上使用 fx 修饰语来指定其仅对特定的内联特效生效。这种方式无法（直接）匹配无内联特效标记的音节。
接着之前的卡拉OK行的例子，你可以写出下面的模版：
template syl: {对所有音节生效的默认效果}
template syl fx paint: {仅对“paint”音节叠加生效的效果}
template syl fx cloud: {仅对“cloud”音节叠加生效的效果}这里的想法是先有一个基本的效果，然后为某些音节设计更多的效果。
通过使用一个基于内联特效而启用或禁用的 fxgroup，可以在卡拉OK模版执行器中匹配空白内联特效的音节。 您也可以使用多个 _fxgroup_来执行多个内联特效的模板。
code syl: fxgroup.blankfx = (syl.inline_fx == "")
template syl fxgroup blankfx: {仅对空内联特效音节叠加生效的效果}重要的是，code行在每个音节都会执行，并且会在每个需要使用它的对音节生效的模版之前执行。
The inline-fx tags are parsed by `karaskel.preproc_line_text` so they will only work if you have applied at least that much karaskel pre-processing on your subtitle lines.
The inline-fx for a syllable is then available as syl.inline_fx, which
you can compare to a string to conditionally apply effects.
In some code that runs per-syllable in your script:
if syl.inline_fx == "" then
apply_base_effect(subs, meta, line, syl)
elseif syl.inline_fx == "paint" then
apply_paint_effect(subs, meta, line, syl)
elseif syl.inline_fx == "cloud" then
apply_cloud_effect(subs, meta, line, syl)
end
Simply compare the inline-fx name to the various possibilities and run the right effect code.
In some code that runs per-syllable in your script: At top-level of your script:
effects = {}
effects[""] = function(subs, meta, line, syl)
-- base effect code here
end
effects.paint = function(subs, meta, line, syl)
-- paint effect code here
end
effects.cloud = function(subs, meta, line, syl)
-- cloud effect code here
end
Then later, in some per-syllable processing code:
effects[syl.inline_fx](subs, meta, line, syl)
First, a table is created and filled with functions for applying the different effects. The keys used for the table are the names of the possible inline-fx. When the effect has to be applied, the right function is looked up in the effect table and then called.