##User Story
We want to be able to understand the capabilities of different open source IPA engines so that we can design a solution for an IPA renderer.
##Open source IPAs:
- https://github.com/itinerarium/phoneme-synthesis/
- https://github.com/rhasspy/larynx
- https://github.com/espeak-ng/espeak-ng
##Closed source IPAs:
- Google - https://cloud.google.com/text-to-speech
- IBM - https://www.ibm.com/demos/live/tts-demo/self-service/home
- Microsoft - https://azure.microsoft.com/en-us/services/cognitive-services/text-to-speech/
##Acceptance Criteria
- Understand the input and output of the engine.
- Determine if we need to write something or is it just plugin and play.
- Determine if engine supports Speech Synthesis Markup Language (SSML)
### Outcome of this ticket
Create a table that lists out the following facts for each of our options:
- How many languages does it support and which languages?
- If it is closed source, how much does it cost?
- Use the [[https://docs.google.com/spreadsheets/d/1Jn13EwhF0tRq6rHsA_3-pkB_3qDnhmNjVdgTjIs7Qyw/edit#gid=0 |corpus that we have created ]], and record the audio output of the corpus for that library
- How many voices does this library have? Is it only one?
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###Results
| **Status** | **State** | **Link** |
| ✅ Done | Create table with above information | [[ https://meta.wikimedia.org/wiki/Community_Wishlist_Survey_2022/Reading/IPA_audio_renderer/TTS_investigation | Community Wishlist Survey 2022/Reading/IPA audio renderer/TTS investigation ]] on Meta |
| 🕙 WIP | Collate all TTS engines' output for the [[https://docs.google.com/spreadsheets/d/1Jn13EwhF0tRq6rHsA_3-pkB_3qDnhmNjVdgTjIs7Qyw/edit#gid=0 |corpus that we have created ]] | https://tnt-dev.toolforge.org/projects/tts |