Interface RecognitionConfigOrBuilder

  • All Superinterfaces:
    com.google.protobuf.MessageLiteOrBuilder, com.google.protobuf.MessageOrBuilder
    All Known Implementing Classes:
    RecognitionConfig, RecognitionConfig.Builder

    public interface RecognitionConfigOrBuilder
    extends com.google.protobuf.MessageOrBuilder
    • Method Detail

      • getEncodingValue

        int getEncodingValue()
         Encoding of audio data sent in all `RecognitionAudio` messages.
         This field is optional for `FLAC` and `WAV` audio files and required
         for all other audio formats. For details, see
         [AudioEncoding][google.cloud.speech.v1p1beta1.RecognitionConfig.AudioEncoding].
         
        .google.cloud.speech.v1p1beta1.RecognitionConfig.AudioEncoding encoding = 1;
        Returns:
        The enum numeric value on the wire for encoding.
      • getEncoding

        RecognitionConfig.AudioEncoding getEncoding()
         Encoding of audio data sent in all `RecognitionAudio` messages.
         This field is optional for `FLAC` and `WAV` audio files and required
         for all other audio formats. For details, see
         [AudioEncoding][google.cloud.speech.v1p1beta1.RecognitionConfig.AudioEncoding].
         
        .google.cloud.speech.v1p1beta1.RecognitionConfig.AudioEncoding encoding = 1;
        Returns:
        The encoding.
      • getSampleRateHertz

        int getSampleRateHertz()
         Sample rate in Hertz of the audio data sent in all
         `RecognitionAudio` messages. Valid values are: 8000-48000.
         16000 is optimal. For best results, set the sampling rate of the audio
         source to 16000 Hz. If that's not possible, use the native sample rate of
         the audio source (instead of re-sampling).
         This field is optional for FLAC and WAV audio files, but is
         required for all other audio formats. For details, see
         [AudioEncoding][google.cloud.speech.v1p1beta1.RecognitionConfig.AudioEncoding].
         
        int32 sample_rate_hertz = 2;
        Returns:
        The sampleRateHertz.
      • getAudioChannelCount

        int getAudioChannelCount()
         The number of channels in the input audio data.
         ONLY set this for MULTI-CHANNEL recognition.
         Valid values for LINEAR16, OGG_OPUS and FLAC are `1`-`8`.
         Valid value for MULAW, AMR, AMR_WB and SPEEX_WITH_HEADER_BYTE is only `1`.
         If `0` or omitted, defaults to one channel (mono).
         Note: We only recognize the first channel by default.
         To perform independent recognition on each channel set
         `enable_separate_recognition_per_channel` to 'true'.
         
        int32 audio_channel_count = 7;
        Returns:
        The audioChannelCount.
      • getEnableSeparateRecognitionPerChannel

        boolean getEnableSeparateRecognitionPerChannel()
         This needs to be set to `true` explicitly and `audio_channel_count` > 1
         to get each channel recognized separately. The recognition result will
         contain a `channel_tag` field to state which channel that result belongs
         to. If this is not true, we will only recognize the first channel. The
         request is billed cumulatively for all channels recognized:
         `audio_channel_count` multiplied by the length of the audio.
         
        bool enable_separate_recognition_per_channel = 12;
        Returns:
        The enableSeparateRecognitionPerChannel.
      • getLanguageCode

        String getLanguageCode()
         Required. The language of the supplied audio as a
         [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tag.
         Example: "en-US".
         See [Language
         Support](https://cloud.google.com/speech-to-text/docs/languages) for a list
         of the currently supported language codes.
         
        string language_code = 3 [(.google.api.field_behavior) = REQUIRED];
        Returns:
        The languageCode.
      • getLanguageCodeBytes

        com.google.protobuf.ByteString getLanguageCodeBytes()
         Required. The language of the supplied audio as a
         [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tag.
         Example: "en-US".
         See [Language
         Support](https://cloud.google.com/speech-to-text/docs/languages) for a list
         of the currently supported language codes.
         
        string language_code = 3 [(.google.api.field_behavior) = REQUIRED];
        Returns:
        The bytes for languageCode.
      • getAlternativeLanguageCodesList

        List<String> getAlternativeLanguageCodesList()
         A list of up to 3 additional
         [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tags,
         listing possible alternative languages of the supplied audio.
         See [Language
         Support](https://cloud.google.com/speech-to-text/docs/languages) for a list
         of the currently supported language codes. If alternative languages are
         listed, recognition result will contain recognition in the most likely
         language detected including the main language_code. The recognition result
         will include the language tag of the language detected in the audio. Note:
         This feature is only supported for Voice Command and Voice Search use cases
         and performance may vary for other use cases (e.g., phone call
         transcription).
         
        repeated string alternative_language_codes = 18;
        Returns:
        A list containing the alternativeLanguageCodes.
      • getAlternativeLanguageCodesCount

        int getAlternativeLanguageCodesCount()
         A list of up to 3 additional
         [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tags,
         listing possible alternative languages of the supplied audio.
         See [Language
         Support](https://cloud.google.com/speech-to-text/docs/languages) for a list
         of the currently supported language codes. If alternative languages are
         listed, recognition result will contain recognition in the most likely
         language detected including the main language_code. The recognition result
         will include the language tag of the language detected in the audio. Note:
         This feature is only supported for Voice Command and Voice Search use cases
         and performance may vary for other use cases (e.g., phone call
         transcription).
         
        repeated string alternative_language_codes = 18;
        Returns:
        The count of alternativeLanguageCodes.
      • getAlternativeLanguageCodes

        String getAlternativeLanguageCodes​(int index)
         A list of up to 3 additional
         [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tags,
         listing possible alternative languages of the supplied audio.
         See [Language
         Support](https://cloud.google.com/speech-to-text/docs/languages) for a list
         of the currently supported language codes. If alternative languages are
         listed, recognition result will contain recognition in the most likely
         language detected including the main language_code. The recognition result
         will include the language tag of the language detected in the audio. Note:
         This feature is only supported for Voice Command and Voice Search use cases
         and performance may vary for other use cases (e.g., phone call
         transcription).
         
        repeated string alternative_language_codes = 18;
        Parameters:
        index - The index of the element to return.
        Returns:
        The alternativeLanguageCodes at the given index.
      • getAlternativeLanguageCodesBytes

        com.google.protobuf.ByteString getAlternativeLanguageCodesBytes​(int index)
         A list of up to 3 additional
         [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tags,
         listing possible alternative languages of the supplied audio.
         See [Language
         Support](https://cloud.google.com/speech-to-text/docs/languages) for a list
         of the currently supported language codes. If alternative languages are
         listed, recognition result will contain recognition in the most likely
         language detected including the main language_code. The recognition result
         will include the language tag of the language detected in the audio. Note:
         This feature is only supported for Voice Command and Voice Search use cases
         and performance may vary for other use cases (e.g., phone call
         transcription).
         
        repeated string alternative_language_codes = 18;
        Parameters:
        index - The index of the value to return.
        Returns:
        The bytes of the alternativeLanguageCodes at the given index.
      • getMaxAlternatives

        int getMaxAlternatives()
         Maximum number of recognition hypotheses to be returned.
         Specifically, the maximum number of `SpeechRecognitionAlternative` messages
         within each `SpeechRecognitionResult`.
         The server may return fewer than `max_alternatives`.
         Valid values are `0`-`30`. A value of `0` or `1` will return a maximum of
         one. If omitted, will return a maximum of one.
         
        int32 max_alternatives = 4;
        Returns:
        The maxAlternatives.
      • getProfanityFilter

        boolean getProfanityFilter()
         If set to `true`, the server will attempt to filter out
         profanities, replacing all but the initial character in each filtered word
         with asterisks, e.g. "f***". If set to `false` or omitted, profanities
         won't be filtered out.
         
        bool profanity_filter = 5;
        Returns:
        The profanityFilter.
      • hasAdaptation

        boolean hasAdaptation()
         Speech adaptation configuration improves the accuracy of speech
         recognition. For more information, see the [speech
         adaptation](https://cloud.google.com/speech-to-text/docs/adaptation)
         documentation.
         When speech adaptation is set it supersedes the `speech_contexts` field.
         
        .google.cloud.speech.v1p1beta1.SpeechAdaptation adaptation = 20;
        Returns:
        Whether the adaptation field is set.
      • getAdaptation

        SpeechAdaptation getAdaptation()
         Speech adaptation configuration improves the accuracy of speech
         recognition. For more information, see the [speech
         adaptation](https://cloud.google.com/speech-to-text/docs/adaptation)
         documentation.
         When speech adaptation is set it supersedes the `speech_contexts` field.
         
        .google.cloud.speech.v1p1beta1.SpeechAdaptation adaptation = 20;
        Returns:
        The adaptation.
      • getAdaptationOrBuilder

        SpeechAdaptationOrBuilder getAdaptationOrBuilder()
         Speech adaptation configuration improves the accuracy of speech
         recognition. For more information, see the [speech
         adaptation](https://cloud.google.com/speech-to-text/docs/adaptation)
         documentation.
         When speech adaptation is set it supersedes the `speech_contexts` field.
         
        .google.cloud.speech.v1p1beta1.SpeechAdaptation adaptation = 20;
      • hasTranscriptNormalization

        boolean hasTranscriptNormalization()
         Use transcription normalization to automatically replace parts of the
         transcript with phrases of your choosing. For StreamingRecognize, this
         normalization only applies to stable partial transcripts (stability > 0.8)
         and final transcripts.
         
        .google.cloud.speech.v1p1beta1.TranscriptNormalization transcript_normalization = 24;
        Returns:
        Whether the transcriptNormalization field is set.
      • getTranscriptNormalization

        TranscriptNormalization getTranscriptNormalization()
         Use transcription normalization to automatically replace parts of the
         transcript with phrases of your choosing. For StreamingRecognize, this
         normalization only applies to stable partial transcripts (stability > 0.8)
         and final transcripts.
         
        .google.cloud.speech.v1p1beta1.TranscriptNormalization transcript_normalization = 24;
        Returns:
        The transcriptNormalization.
      • getTranscriptNormalizationOrBuilder

        TranscriptNormalizationOrBuilder getTranscriptNormalizationOrBuilder()
         Use transcription normalization to automatically replace parts of the
         transcript with phrases of your choosing. For StreamingRecognize, this
         normalization only applies to stable partial transcripts (stability > 0.8)
         and final transcripts.
         
        .google.cloud.speech.v1p1beta1.TranscriptNormalization transcript_normalization = 24;
      • getSpeechContextsList

        List<SpeechContext> getSpeechContextsList()
         Array of [SpeechContext][google.cloud.speech.v1p1beta1.SpeechContext].
         A means to provide context to assist the speech recognition. For more
         information, see
         [speech
         adaptation](https://cloud.google.com/speech-to-text/docs/adaptation).
         
        repeated .google.cloud.speech.v1p1beta1.SpeechContext speech_contexts = 6;
      • getSpeechContexts

        SpeechContext getSpeechContexts​(int index)
         Array of [SpeechContext][google.cloud.speech.v1p1beta1.SpeechContext].
         A means to provide context to assist the speech recognition. For more
         information, see
         [speech
         adaptation](https://cloud.google.com/speech-to-text/docs/adaptation).
         
        repeated .google.cloud.speech.v1p1beta1.SpeechContext speech_contexts = 6;
      • getSpeechContextsCount

        int getSpeechContextsCount()
         Array of [SpeechContext][google.cloud.speech.v1p1beta1.SpeechContext].
         A means to provide context to assist the speech recognition. For more
         information, see
         [speech
         adaptation](https://cloud.google.com/speech-to-text/docs/adaptation).
         
        repeated .google.cloud.speech.v1p1beta1.SpeechContext speech_contexts = 6;
      • getSpeechContextsOrBuilderList

        List<? extends SpeechContextOrBuilder> getSpeechContextsOrBuilderList()
         Array of [SpeechContext][google.cloud.speech.v1p1beta1.SpeechContext].
         A means to provide context to assist the speech recognition. For more
         information, see
         [speech
         adaptation](https://cloud.google.com/speech-to-text/docs/adaptation).
         
        repeated .google.cloud.speech.v1p1beta1.SpeechContext speech_contexts = 6;
      • getSpeechContextsOrBuilder

        SpeechContextOrBuilder getSpeechContextsOrBuilder​(int index)
         Array of [SpeechContext][google.cloud.speech.v1p1beta1.SpeechContext].
         A means to provide context to assist the speech recognition. For more
         information, see
         [speech
         adaptation](https://cloud.google.com/speech-to-text/docs/adaptation).
         
        repeated .google.cloud.speech.v1p1beta1.SpeechContext speech_contexts = 6;
      • getEnableWordTimeOffsets

        boolean getEnableWordTimeOffsets()
         If `true`, the top result includes a list of words and
         the start and end time offsets (timestamps) for those words. If
         `false`, no word-level time offset information is returned. The default is
         `false`.
         
        bool enable_word_time_offsets = 8;
        Returns:
        The enableWordTimeOffsets.
      • getEnableWordConfidence

        boolean getEnableWordConfidence()
         If `true`, the top result includes a list of words and the
         confidence for those words. If `false`, no word-level confidence
         information is returned. The default is `false`.
         
        bool enable_word_confidence = 15;
        Returns:
        The enableWordConfidence.
      • getEnableAutomaticPunctuation

        boolean getEnableAutomaticPunctuation()
         If 'true', adds punctuation to recognition result hypotheses.
         This feature is only available in select languages. Setting this for
         requests in other languages has no effect at all.
         The default 'false' value does not add punctuation to result hypotheses.
         
        bool enable_automatic_punctuation = 11;
        Returns:
        The enableAutomaticPunctuation.
      • hasEnableSpokenPunctuation

        boolean hasEnableSpokenPunctuation()
         The spoken punctuation behavior for the call
         If not set, uses default behavior based on model of choice
         e.g. command_and_search will enable spoken punctuation by default
         If 'true', replaces spoken punctuation with the corresponding symbols in
         the request. For example, "how are you question mark" becomes "how are
         you?". See https://cloud.google.com/speech-to-text/docs/spoken-punctuation
         for support. If 'false', spoken punctuation is not replaced.
         
        .google.protobuf.BoolValue enable_spoken_punctuation = 22;
        Returns:
        Whether the enableSpokenPunctuation field is set.
      • getEnableSpokenPunctuation

        com.google.protobuf.BoolValue getEnableSpokenPunctuation()
         The spoken punctuation behavior for the call
         If not set, uses default behavior based on model of choice
         e.g. command_and_search will enable spoken punctuation by default
         If 'true', replaces spoken punctuation with the corresponding symbols in
         the request. For example, "how are you question mark" becomes "how are
         you?". See https://cloud.google.com/speech-to-text/docs/spoken-punctuation
         for support. If 'false', spoken punctuation is not replaced.
         
        .google.protobuf.BoolValue enable_spoken_punctuation = 22;
        Returns:
        The enableSpokenPunctuation.
      • getEnableSpokenPunctuationOrBuilder

        com.google.protobuf.BoolValueOrBuilder getEnableSpokenPunctuationOrBuilder()
         The spoken punctuation behavior for the call
         If not set, uses default behavior based on model of choice
         e.g. command_and_search will enable spoken punctuation by default
         If 'true', replaces spoken punctuation with the corresponding symbols in
         the request. For example, "how are you question mark" becomes "how are
         you?". See https://cloud.google.com/speech-to-text/docs/spoken-punctuation
         for support. If 'false', spoken punctuation is not replaced.
         
        .google.protobuf.BoolValue enable_spoken_punctuation = 22;
      • hasEnableSpokenEmojis

        boolean hasEnableSpokenEmojis()
         The spoken emoji behavior for the call
         If not set, uses default behavior based on model of choice
         If 'true', adds spoken emoji formatting for the request. This will replace
         spoken emojis with the corresponding Unicode symbols in the final
         transcript. If 'false', spoken emojis are not replaced.
         
        .google.protobuf.BoolValue enable_spoken_emojis = 23;
        Returns:
        Whether the enableSpokenEmojis field is set.
      • getEnableSpokenEmojis

        com.google.protobuf.BoolValue getEnableSpokenEmojis()
         The spoken emoji behavior for the call
         If not set, uses default behavior based on model of choice
         If 'true', adds spoken emoji formatting for the request. This will replace
         spoken emojis with the corresponding Unicode symbols in the final
         transcript. If 'false', spoken emojis are not replaced.
         
        .google.protobuf.BoolValue enable_spoken_emojis = 23;
        Returns:
        The enableSpokenEmojis.
      • getEnableSpokenEmojisOrBuilder

        com.google.protobuf.BoolValueOrBuilder getEnableSpokenEmojisOrBuilder()
         The spoken emoji behavior for the call
         If not set, uses default behavior based on model of choice
         If 'true', adds spoken emoji formatting for the request. This will replace
         spoken emojis with the corresponding Unicode symbols in the final
         transcript. If 'false', spoken emojis are not replaced.
         
        .google.protobuf.BoolValue enable_spoken_emojis = 23;
      • getEnableSpeakerDiarization

        @Deprecated
        boolean getEnableSpeakerDiarization()
        Deprecated.
        google.cloud.speech.v1p1beta1.RecognitionConfig.enable_speaker_diarization is deprecated. See google/cloud/speech/v1p1beta1/cloud_speech.proto;l=401
         If 'true', enables speaker detection for each recognized word in
         the top alternative of the recognition result using a speaker_tag provided
         in the WordInfo.
         Note: Use diarization_config instead.
         
        bool enable_speaker_diarization = 16 [deprecated = true];
        Returns:
        The enableSpeakerDiarization.
      • getDiarizationSpeakerCount

        @Deprecated
        int getDiarizationSpeakerCount()
        Deprecated.
        google.cloud.speech.v1p1beta1.RecognitionConfig.diarization_speaker_count is deprecated. See google/cloud/speech/v1p1beta1/cloud_speech.proto;l=406
         If set, specifies the estimated number of speakers in the conversation.
         Defaults to '2'. Ignored unless enable_speaker_diarization is set to true.
         Note: Use diarization_config instead.
         
        int32 diarization_speaker_count = 17 [deprecated = true];
        Returns:
        The diarizationSpeakerCount.
      • hasDiarizationConfig

        boolean hasDiarizationConfig()
         Config to enable speaker diarization and set additional
         parameters to make diarization better suited for your application.
         Note: When this is enabled, we send all the words from the beginning of the
         audio for the top alternative in every consecutive STREAMING responses.
         This is done in order to improve our speaker tags as our models learn to
         identify the speakers in the conversation over time.
         For non-streaming requests, the diarization results will be provided only
         in the top alternative of the FINAL SpeechRecognitionResult.
         
        .google.cloud.speech.v1p1beta1.SpeakerDiarizationConfig diarization_config = 19;
        Returns:
        Whether the diarizationConfig field is set.
      • getDiarizationConfig

        SpeakerDiarizationConfig getDiarizationConfig()
         Config to enable speaker diarization and set additional
         parameters to make diarization better suited for your application.
         Note: When this is enabled, we send all the words from the beginning of the
         audio for the top alternative in every consecutive STREAMING responses.
         This is done in order to improve our speaker tags as our models learn to
         identify the speakers in the conversation over time.
         For non-streaming requests, the diarization results will be provided only
         in the top alternative of the FINAL SpeechRecognitionResult.
         
        .google.cloud.speech.v1p1beta1.SpeakerDiarizationConfig diarization_config = 19;
        Returns:
        The diarizationConfig.
      • getDiarizationConfigOrBuilder

        SpeakerDiarizationConfigOrBuilder getDiarizationConfigOrBuilder()
         Config to enable speaker diarization and set additional
         parameters to make diarization better suited for your application.
         Note: When this is enabled, we send all the words from the beginning of the
         audio for the top alternative in every consecutive STREAMING responses.
         This is done in order to improve our speaker tags as our models learn to
         identify the speakers in the conversation over time.
         For non-streaming requests, the diarization results will be provided only
         in the top alternative of the FINAL SpeechRecognitionResult.
         
        .google.cloud.speech.v1p1beta1.SpeakerDiarizationConfig diarization_config = 19;
      • hasMetadata

        boolean hasMetadata()
         Metadata regarding this request.
         
        .google.cloud.speech.v1p1beta1.RecognitionMetadata metadata = 9;
        Returns:
        Whether the metadata field is set.
      • getMetadata

        RecognitionMetadata getMetadata()
         Metadata regarding this request.
         
        .google.cloud.speech.v1p1beta1.RecognitionMetadata metadata = 9;
        Returns:
        The metadata.
      • getMetadataOrBuilder

        RecognitionMetadataOrBuilder getMetadataOrBuilder()
         Metadata regarding this request.
         
        .google.cloud.speech.v1p1beta1.RecognitionMetadata metadata = 9;
      • getModel

        String getModel()
         Which model to select for the given request. Select the model
         best suited to your domain to get best results. If a model is not
         explicitly specified, then we auto-select a model based on the parameters
         in the RecognitionConfig.
         <table>
           <tr>
             <td><b>Model</b></td>
             <td><b>Description</b></td>
           </tr>
           <tr>
             <td><code>latest_long</code></td>
             <td>Best for long form content like media or conversation.</td>
           </tr>
           <tr>
             <td><code>latest_short</code></td>
             <td>Best for short form content like commands or single shot directed
             speech.</td>
           </tr>
           <tr>
             <td><code>command_and_search</code></td>
             <td>Best for short queries such as voice commands or voice search.</td>
           </tr>
           <tr>
             <td><code>phone_call</code></td>
             <td>Best for audio that originated from a phone call (typically
             recorded at an 8khz sampling rate).</td>
           </tr>
           <tr>
             <td><code>video</code></td>
             <td>Best for audio that originated from video or includes multiple
                 speakers. Ideally the audio is recorded at a 16khz or greater
                 sampling rate. This is a premium model that costs more than the
                 standard rate.</td>
           </tr>
           <tr>
             <td><code>default</code></td>
             <td>Best for audio that is not one of the specific audio models.
                 For example, long-form audio. Ideally the audio is high-fidelity,
                 recorded at a 16khz or greater sampling rate.</td>
           </tr>
           <tr>
             <td><code>medical_conversation</code></td>
             <td>Best for audio that originated from a conversation between a
                 medical provider and patient.</td>
           </tr>
           <tr>
             <td><code>medical_dictation</code></td>
             <td>Best for audio that originated from dictation notes by a medical
                 provider.</td>
           </tr>
         </table>
         
        string model = 13;
        Returns:
        The model.
      • getModelBytes

        com.google.protobuf.ByteString getModelBytes()
         Which model to select for the given request. Select the model
         best suited to your domain to get best results. If a model is not
         explicitly specified, then we auto-select a model based on the parameters
         in the RecognitionConfig.
         <table>
           <tr>
             <td><b>Model</b></td>
             <td><b>Description</b></td>
           </tr>
           <tr>
             <td><code>latest_long</code></td>
             <td>Best for long form content like media or conversation.</td>
           </tr>
           <tr>
             <td><code>latest_short</code></td>
             <td>Best for short form content like commands or single shot directed
             speech.</td>
           </tr>
           <tr>
             <td><code>command_and_search</code></td>
             <td>Best for short queries such as voice commands or voice search.</td>
           </tr>
           <tr>
             <td><code>phone_call</code></td>
             <td>Best for audio that originated from a phone call (typically
             recorded at an 8khz sampling rate).</td>
           </tr>
           <tr>
             <td><code>video</code></td>
             <td>Best for audio that originated from video or includes multiple
                 speakers. Ideally the audio is recorded at a 16khz or greater
                 sampling rate. This is a premium model that costs more than the
                 standard rate.</td>
           </tr>
           <tr>
             <td><code>default</code></td>
             <td>Best for audio that is not one of the specific audio models.
                 For example, long-form audio. Ideally the audio is high-fidelity,
                 recorded at a 16khz or greater sampling rate.</td>
           </tr>
           <tr>
             <td><code>medical_conversation</code></td>
             <td>Best for audio that originated from a conversation between a
                 medical provider and patient.</td>
           </tr>
           <tr>
             <td><code>medical_dictation</code></td>
             <td>Best for audio that originated from dictation notes by a medical
                 provider.</td>
           </tr>
         </table>
         
        string model = 13;
        Returns:
        The bytes for model.
      • getUseEnhanced

        boolean getUseEnhanced()
         Set to true to use an enhanced model for speech recognition.
         If `use_enhanced` is set to true and the `model` field is not set, then
         an appropriate enhanced model is chosen if an enhanced model exists for
         the audio.
        
         If `use_enhanced` is true and an enhanced version of the specified model
         does not exist, then the speech is recognized using the standard version
         of the specified model.
         
        bool use_enhanced = 14;
        Returns:
        The useEnhanced.