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# Utilisation `StartSpeechSynthesisTask` avec un AWS SDK ou une CLI
<a name="example_polly_StartSpeechSynthesisTask_section"></a>

Les exemples de code suivants illustrent comment utiliser `StartSpeechSynthesisTask`.

------
#### [ CLI ]

**AWS CLI**  
**Pour synthétiser du texte**  
L'`start-speech-synthesis-task`exemple suivant synthétise le texte `text_file.txt` et stocke le MP3 fichier obtenu dans le compartiment spécifié.  

```
aws polly start-speech-synthesis-task \
    --output-format {{mp3}} \
    --output-s3-bucket-name {{amzn-s3-demo-bucket}} \
    --text  {{file://text_file.txt}} \
    --voice-id {{Joanna}}
```
Sortie :  

```
{
    "SynthesisTask": {
        "TaskId": "70b61c0f-57ce-4715-a247-cae8729dcce9",
        "TaskStatus": "scheduled",
        "OutputUri": "https://s3.us-east-2.amazonaws.com/amzn-s3-demo-bucket/70b61c0f-57ce-4715-a247-cae8729dcce9.mp3",
        "CreationTime": 1603911042.689,
        "RequestCharacters": 1311,
        "OutputFormat": "mp3",
        "TextType": "text",
        "VoiceId": "Joanna"
    }
}
```
Pour plus d’informations, consultez [Création de fichiers audio longs](https://docs.aws.amazon.com/polly/latest/dg/longer-cli.html) dans le *Guide du développeur Amazon Polly*.  
+  Pour plus de détails sur l'API, reportez-vous [StartSpeechSynthesisTask](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/polly/start-speech-synthesis-task.html)à la section *Référence des AWS CLI commandes*. 

------
#### [ Python ]

**Kit SDK for Python (Boto3)**  
 Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le [référentiel d’exemples de code AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/polly#code-examples). 

```
class PollyWrapper:
    """Encapsulates Amazon Polly functions."""

    def __init__(self, polly_client, s3_resource):
        """
        :param polly_client: A Boto3 Amazon Polly client.
        :param s3_resource: A Boto3 Amazon Simple Storage Service (Amazon S3) resource.
        """
        self.polly_client = polly_client
        self.s3_resource = s3_resource
        self.voice_metadata = None


    def do_synthesis_task(
        self,
        text,
        engine,
        voice,
        audio_format,
        s3_bucket,
        lang_code=None,
        include_visemes=False,
        wait_callback=None,
    ):
        """
        Start an asynchronous task to synthesize speech or speech marks, wait for
        the task to complete, retrieve the output from Amazon S3, and return the
        data.

        An asynchronous task is required when the text is too long for near-real time
        synthesis.

        :param text: The text to synthesize.
        :param engine: The kind of engine used. Can be standard or neural.
        :param voice: The ID of the voice to use.
        :param audio_format: The audio format to return for synthesized speech. When
                             speech marks are synthesized, the output format is JSON.
        :param s3_bucket: The name of an existing Amazon S3 bucket that you have
                          write access to. Synthesis output is written to this bucket.
        :param lang_code: The language code of the voice to use. This has an effect
                          only when a bilingual voice is selected.
        :param include_visemes: When True, a second request is made to Amazon Polly
                                to synthesize a list of visemes, using the specified
                                text and voice. A viseme represents the visual position
                                of the face and mouth when saying part of a word.
        :param wait_callback: A callback function that is called periodically during
                              task processing, to give the caller an opportunity to
                              take action, such as to display status.
        :return: The audio stream that contains the synthesized speech and a list
                 of visemes that are associated with the speech audio.
        """
        try:
            kwargs = {
                "Engine": engine,
                "OutputFormat": audio_format,
                "OutputS3BucketName": s3_bucket,
                "Text": text,
                "VoiceId": voice,
            }
            if lang_code is not None:
                kwargs["LanguageCode"] = lang_code
            response = self.polly_client.start_speech_synthesis_task(**kwargs)
            speech_task = response["SynthesisTask"]
            logger.info("Started speech synthesis task %s.", speech_task["TaskId"])

            viseme_task = None
            if include_visemes:
                kwargs["OutputFormat"] = "json"
                kwargs["SpeechMarkTypes"] = ["viseme"]
                response = self.polly_client.start_speech_synthesis_task(**kwargs)
                viseme_task = response["SynthesisTask"]
                logger.info("Started viseme synthesis task %s.", viseme_task["TaskId"])
        except ClientError:
            logger.exception("Couldn't start synthesis task.")
            raise
        else:
            bucket = self.s3_resource.Bucket(s3_bucket)
            audio_stream = self._wait_for_task(
                10, speech_task["TaskId"], "speech", wait_callback, bucket
            )

            visemes = None
            if include_visemes:
                viseme_data = self._wait_for_task(
                    10, viseme_task["TaskId"], "viseme", wait_callback, bucket
                )
                visemes = [
                    json.loads(v) for v in viseme_data.read().decode().split() if v
                ]

            return audio_stream, visemes
```
+  Pour plus de détails sur l'API, consultez [StartSpeechSynthesisTask](https://docs.aws.amazon.com/goto/boto3/polly-2016-06-10/StartSpeechSynthesisTask)le *AWS manuel de référence de l'API SDK for Python (Boto3*). 

------
#### [ SAP ABAP ]

**Kit SDK pour SAP ABAP**  
 Il y en a plus sur GitHub. Trouvez l’exemple complet et découvrez comment le configurer et l’exécuter dans le [référentiel d’exemples de code AWS](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/sap-abap/services/ply#code-examples). 

```
    TRY.
        " Only pass optional parameters if they have values
        IF iv_lang_code IS NOT INITIAL AND iv_s3_key_prefix IS NOT INITIAL.
          oo_result = lo_ply->startspeechsynthesistask(
            iv_engine = iv_engine
            iv_outputformat = iv_audio_format
            iv_outputs3bucketname = iv_s3_bucket
            iv_outputs3keyprefix = iv_s3_key_prefix
            iv_text = iv_text
            iv_voiceid = iv_voice_id
            iv_languagecode = iv_lang_code ).
        ELSEIF iv_lang_code IS NOT INITIAL.
          oo_result = lo_ply->startspeechsynthesistask(
            iv_engine = iv_engine
            iv_outputformat = iv_audio_format
            iv_outputs3bucketname = iv_s3_bucket
            iv_text = iv_text
            iv_voiceid = iv_voice_id
            iv_languagecode = iv_lang_code ).
        ELSEIF iv_s3_key_prefix IS NOT INITIAL.
          oo_result = lo_ply->startspeechsynthesistask(
            iv_engine = iv_engine
            iv_outputformat = iv_audio_format
            iv_outputs3bucketname = iv_s3_bucket
            iv_outputs3keyprefix = iv_s3_key_prefix
            iv_text = iv_text
            iv_voiceid = iv_voice_id ).
        ELSE.
          oo_result = lo_ply->startspeechsynthesistask(
            iv_engine = iv_engine
            iv_outputformat = iv_audio_format
            iv_outputs3bucketname = iv_s3_bucket
            iv_text = iv_text
            iv_voiceid = iv_voice_id ).
        ENDIF.
        MESSAGE 'Speech synthesis task started.' TYPE 'I'.
      CATCH /aws1/cx_plyinvalids3bucketex.
        MESSAGE 'Invalid S3 bucket.' TYPE 'E'.
      CATCH /aws1/cx_plyinvalidssmlex.
        MESSAGE 'Invalid SSML.' TYPE 'E'.
      CATCH /aws1/cx_plylexiconnotfoundex.
        MESSAGE 'Lexicon not found.' TYPE 'E'.
      CATCH /aws1/cx_plyservicefailureex.
        MESSAGE 'Service failure occurred.' TYPE 'E'.
      CATCH /aws1/cx_plytextlengthexcdex.
        MESSAGE 'Text length exceeded maximum.' TYPE 'E'.
    ENDTRY.
```
+  Pour plus de détails sur l'API, reportez-vous [StartSpeechSynthesisTask](https://docs.aws.amazon.com/sdk-for-sap-abap/v1/api/latest/index.html)à la section de référence du *AWS SDK pour l'API SAP ABAP*. 

------

Pour obtenir la liste complète des guides de développement du AWS SDK et des exemples de code, consultez[Utilisation d'Amazon Polly avec un SDK AWS](sdk-general-information-section.md). Cette rubrique comprend également des informations sur le démarrage et sur les versions précédentes du kit SDK.