public com.google.cloud.texttospeech.v1.CustomPronunciationParams.Builder
        addPronunciationsBuilder() {
      return getPronunciationsFieldBuilder()
          .addBuilder(
              com.google.cloud.texttospeech.v1.CustomPronunciationParams.getDefaultInstance());
    }
<pre>
The pronunciation customizations are applied.
</pre>

<code>repeated .google.cloud.texttospeech.v1.CustomPronunciationParams pronunciations = 1;
</code>
java-texttospeech/proto-google-cloud-texttospeech-v1/src/main/java/com/google/cloud/texttospeech/v1/CustomPronunciations.java