Text-to-Speech offers US and EU regional API endpoints. If you use a regional endpoint, your data at-rest and in-use will stay within the continental boundaries of Europe or the USA. Specifying an endpoint is important if your data's location must be controlled in order to comply with local regulatory requirements. There is no functional change to the behavior of the API.
When you use a regional endpoint, make sure to include the matching us or eu
location in the parent string. See the
Synthesize
documentation for more information about configuring the synthesize request
body.
Protocol
To perform text to speech synthesis using a regional endpoint, run the applicable command in the table below to configure the correct endpoint:
| Multi-region | Endpoint override |
|---|---|
| EU | $ export CLOUD_TTS_ENDPOINT=https://eu-texttospeech.googleapis.com |
| US | $ export CLOUD_TTS_ENDPOINT=https://us-texttospeech.googleapis.com |
Only Neural2 voices are available from these endpoints:
| Single-region | Endpoint override |
|---|---|
| US Central1 | $ export CLOUD_TTS_ENDPOINT=https://us-central1-texttospeech.googleapis.com |
The following code sample demonstrates how to send a
synthesis request
that keeps all data confined to a specified region. You can substitute either
the EU or US regional endpoint for the CLOUD_TTS_ENDPOINT
variable.
$ curl -H "Authorization: Bearer $(gcloud auth application-default print-access-token)" \
-H "Content-Type: application/json; charset=utf-8" \
--data "{
'input':{
'text':'Android is a mobile operating system developed by Google,
based on the Linux kernel and designed primarily for
touchscreen mobile devices such as smartphones and tablets.'
},
'voice':{
'languageCode':'en-gb',
'name':'en-GB-Neural2-A',
'ssmlGender':'FEMALE'
},
'audioConfig':{
'audioEncoding':'MP3'
}
}" $CLOUD_TTS_ENDPOINT/v1/text:synthesize > synthesize-text.txt
This example uses an access token for a service account set up for the project using the Google Cloud CLI. For instructions on installing the gcloud CLI, setting up a project with a service account, and obtaining an access token, see the quickstart.