public com.google.cloud.texttospeech.v1.Voice.Builder getVoicesBuilder(int index) {
      return getVoicesFieldBuilder().getBuilder(index);
    }
<pre>
The list of voices.
</pre>

<code>repeated .google.cloud.texttospeech.v1.Voice voices = 1;</code>
java-texttospeech/proto-google-cloud-texttospeech-v1/src/main/java/com/google/cloud/texttospeech/v1/ListVoicesResponse.java