watson

This TTS is based on the IBM Watson engine.

Installation

You need to create an account and then a project to get a location and an apikey.

Once you project created, you should see your credentials like the following

{
  "url": "https://stream.watsonplatform.net/text-to-speech/api",
  "apikey": "myRANDOMAPIKEY"
}

Input parameters

Parameters	Required	Default	Choices	Comment
apikey	yes			apikey provided by IAM
location	no	LONDON		endpoint location
voice	yes		See voice table below	Code that define the voice used for the synthesis
pitch	no	medium	See accepted values here	Modifies the baseline pitch for the text
rate	no	medium	See accepted values here	Change the speaking rate for the text

Voice code

Voice code that can be used in the voice flag of your configuration

Languages	Code	Gender
German	de-DE_BirgitVoice	Female
German	de-DE_BirgitV3Voice	Female
German	de-DE_DieterVoice	Male
German	de-DE_DieterV3Voice	Male
German	de-DE_ErikaV3Voice	Female
UK English	en-GB_CharlotteV3Voice	Female
UK English	en-GB_JamesV3Voice	Male
UK English	en-GB_KateVoice	Female
UK English	en-GB_KateV3Voice	Female
US English	en-US_AllisonVoice	Female
US English	en-US_AllisonV3Voice	Female
US English	en-US_EmilyV3Voice	Female
US English	en-US_HenryV3Voice	Male
US English	en-US_KevinV3Voice	Male
US English	en-US_LisaVoice	Female
US English	en-US_LisaV3Voice	Female
US English	en-US_MichaelVoice (the default)	Male
US English	en-US_MichaelV3Voice	Male
US English	en-US_OliviaV3Voice	Female
Castilian Spanish	es-ES_EnriqueVoice	Male
Castilian Spanish	es-ES_EnriqueV3Voice	Male
Castilian Spanish	es-ES_LauraVoice	Female
Castilian Spanish	es-ES_LauraV3Voice	Female
Latin American Spanish	es-LA_SofiaVoice	Female
Latin American Spanish	es-LA_SofiaV3Voice	Female
North American Spanish	es-US_SofiaVoice	Female
North American Spanish	es-US_SofiaV3Voice	Female
French	fr-FR_NicolasV3Voice	Male
French	fr-FR_ReneeVoice	Female
French	fr-FR_ReneeV3Voice	Female
Italian	it-IT_FrancescaVoice	Female
Italian	it-IT_FrancescaV3Voice	Female
Japanese	ja-JP_EmiVoice	Female
Japanese	ja-JP_EmiV3Voice	Female
Brazilian Portuguese	pt-BR_IsabelaVoice	Female
Brazilian Portuguese	pt-BR_IsabelaV3Voice	Female

Settings example

default_text_to_speech: "watson"

text_to_speech:
  - watson:
      apikey: "MyRANDOMAPIKEY"
      voice: "fr-FR_ReneeVoice"
      location: "https://stream-fra.watsonplatform.net/text-to-speech/api"
      pitch: "+3st"
      rate: "+10%"

Notes

This TTS engine is free for less than 10,000 Characters per Month.