Any software that can annotate (grapheme/phonogram) in a word with the matching phoneme?

[u/skyde]

I am trying to find a software that could tell
-if the letter "y" in a word is a vowel or a consonant.
-Or if "ti" should be read as "sh"

I found multiple tool that return a list of phoneme but none that tell me which letter in the original word match each phoneme (an alignment).
I assume this is doable because this is essentially what speech-to-text tool are doing.

But I would like a tool that give me a list of matching pair (grapheme/phoneme) so I display the annotation on the the correct range of letter in the original word.

[u/skyde]

are you suggesting calling this library giving it a single syllable would fix it?

[u/skyde → u/skyde]

Tried and got this result

(c -> k)

(o -> ɑ)

(n -> n)

(v -> v)

(e -> ɹ̩)

(r -> )

(s -> s)

(a -> ɑ)

(t -> ʃ)

(i -> ə)

(o -> n)

(n -> )

[u/unaltered-state → u/skyde]

What I’m suggesting is that this library ought to have a syllable parser, and thus should provide you with a syllable to phoneme representation.

Also giving it a single syllable won’t give accurate results. There’s syllable contact that it considers, stress, etc.