To use custom voices, follow these steps to update the Google Cloud TTS integration.

  1. Click Admin.
  2. Under Integrations, click Integrations.
  3. Click the Google Cloud Text-to-Speech integration.
  4. Click the Configuration tab and then click Advanced.
  5. Copy the JSON example below and paste it into the Advanced Configuration field. This example configuration uses two custom Google TTS voices. If you only use one voice, then you can omit the section after "en-US" }.
         "customVoices": [
                   "displayName": "My-Custom-Voices-1",
                    "model": "projects/112345678901234/locations/us-central1/models/XXXXXXX-XXXX-XXXX-XXXX-XXXXXX",
                    "language": "en-US"
                   "displayName": "My-Custom-Voices-2",
                   "model": "projects/12345678901234/locations/us-central1/models/XXXXXXX-XXXX-XXXX-XXXX-XXXXXX",
                   "language": "en-gb"