public static com.google.cloud.texttospeech.v1beta1.Voice parseFrom(
      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
      throws java.io.IOException {
    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
        PARSER, input, extensionRegistry);
  }
<pre>
The natural sample rate (in hertz) for this voice.
</pre>

<code>int32 natural_sample_rate_hertz = 4;</code>

@return The naturalSampleRateHertz.
java-texttospeech/proto-google-cloud-texttospeech-v1beta1/src/main/java/com/google/cloud/texttospeech/v1beta1/Voice.java