Update tts-engine.md
Mycroft produces no TTS output with IBM Watson unless the voice is specified.
@@ -109,6 +109,8 @@ mycroft-config set tts.module "google"
### Account Setup
Create an account at [IBM.com/cloud](https://www.ibm.com/cloud/watson-text-to-speech).
+You can find a list of available voices at [Languages and Voices](https://cloud.ibm.com/docs/text-to-speech?topic=text-to-speech-voices#neuralVoices). For example, "en-US_MichaelV3Voice". Please note that IBM keeps a log of all requests in the lite plan unless you turn it explicitly.
+
### Mycroft Configuration
Using the [Configuration Manager](config-manager.md) we can edit the `mycroft.conf` file by running:
@@ -121,6 +123,7 @@ To our existing configuration values we will add the following:
"tts": {
"module": "watson",
"watson": {
+ "voice":"PREFERRED_VOICE",
"api_key": "YOUR_API_KEY",
"username": "YOUR_USERNAME", # Not needed if api_key is set
"password": "YOUR_PASSWORD" # Not needed if api_key is set
