Variant of the specified [Speech model][google.cloud.dialogflow.v2.InputAudioConfig.model] to use.
See the Cloud Speech documentation for which models have different variants. For example, the "phone_call" model has both a standard and an enhanced variant. When you use an enhanced model, you will generally receive higher quality results than for a standard model.
public enum SpeechModelVariant
No model variant specified. In this case Dialogflow defaults to USE_BEST_AVAILABLE.
Use the best available variant of the [Speech model][InputAudioConfig.model] that the caller is eligible for.
Please see the Dialogflow docs for how to make your project eligible for enhanced models.
Use an enhanced model variant:
The Cloud Speech documentation describes which models have enhanced variants.
Use standard model variant even if an enhanced model is available. See the Cloud Speech documentation for details about enhanced models.