User Story

We want to be able to understand the capabilities of different text-to-speech engines so that we can design a solution for an IPA audio renderer.

Open source:

• https://github.com/itinerarium/phoneme-synthesis/
• https://github.com/rhasspy/larynx
• https://github.com/espeak-ng/espeak-ng

Closed source:

• 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 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?

Results