Per this fun little debugging session, it might be a good idea to warn the user interactively when they try to use IPA characters which are unsupported by the currently enabled TTS engine.
Google, for example, doesn't support the / stress character — if you pass unsupported IPA in the SSML to Google, it ignores the entire IPA element and reads the word instead (which, I suppose, isn't too bad of a failure state)
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | MusikAnimal | T313711 Investigate Google SSML/IPA rendering issues | |||
| Declined | None | T313494 Warn the user if they use unsupported IPA | |||
| Resolved | Spike | TheresNoTime | T314375 [4 hours] Investigate IPA validator methods |
Quite likely, depending on how we handle this (and how far we take IPA validation) — a general error state (with an informative error message) might be all that's needed?
Going to self-decline this, given we're going to somewhat cover this in T313711#8147281