文档 AWS SDK 示例 GitHub 存储库中还有更多 [S AWS DK 示例](https://github.com/awsdocs/aws-doc-sdk-examples)。 本文属于机器翻译版本。若本译文内容与英语原文存在差异，则一律以英文原文为准。 # 使用 SDK for Python (Boto3) 的 Amazon Transcribe 示例 以下代码示例向您展示了如何使用 适用于 Python (Boto3) 的 AWS SDK 与 Amazon Transcribe 配合使用来执行操作和实现常见场景。 *操作*是大型程序的代码摘录，必须在上下文中运行。您可以通过操作了解如何调用单个服务函数，还可以通过函数相关场景的上下文查看操作。 *场景*是向您演示如何通过在一个服务中调用多个函数或与其他 AWS 服务结合来完成特定任务的代码示例。 每个示例都包含一个指向完整源代码的链接，您可以从中找到有关如何在上下文中设置和运行代码的说明。 **Topics** + [操作](#actions) + [场景](#scenarios) ## 操作 ### `CreateVocabulary` 以下代码示例演示了如何使用 `CreateVocabulary`。 **适用于 Python 的 SDK（Boto3）** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/transcribe#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` def create_vocabulary( vocabulary_name, language_code, transcribe_client, phrases=None, table_uri=None ): """ Creates a custom vocabulary that can be used to improve the accuracy of transcription jobs. This function returns as soon as the vocabulary processing is started. Call get_vocabulary to get the current status of the vocabulary. The vocabulary is ready to use when its status is 'READY'. :param vocabulary_name: The name of the custom vocabulary. :param language_code: The language code of the vocabulary. For example, en-US or nl-NL. :param transcribe_client: The Boto3 Transcribe client. :param phrases: A list of comma-separated phrases to include in the vocabulary. :param table_uri: A table of phrases and pronunciation hints to include in the vocabulary. :return: Information about the newly created vocabulary. """ try: vocab_args = {"VocabularyName": vocabulary_name, "LanguageCode": language_code} if phrases is not None: vocab_args["Phrases"] = phrases elif table_uri is not None: vocab_args["VocabularyFileUri"] = table_uri response = transcribe_client.create_vocabulary(**vocab_args) logger.info("Created custom vocabulary %s.", response["VocabularyName"]) except ClientError: logger.exception("Couldn't create custom vocabulary %s.", vocabulary_name) raise else: return response ``` + 有关 API 的详细信息，请参阅适用[CreateVocabulary](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/CreateVocabulary)于 *Python 的AWS SDK (Boto3) API 参考*。 ### `DeleteTranscriptionJob` 以下代码示例演示了如何使用 `DeleteTranscriptionJob`。 **适用于 Python 的 SDK（Boto3）** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/transcribe#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` def delete_job(job_name, transcribe_client): """ Deletes a transcription job. This also deletes the transcript associated with the job. :param job_name: The name of the job to delete. :param transcribe_client: The Boto3 Transcribe client. """ try: transcribe_client.delete_transcription_job(TranscriptionJobName=job_name) logger.info("Deleted job %s.", job_name) except ClientError: logger.exception("Couldn't delete job %s.", job_name) raise ``` + 有关 API 的详细信息，请参阅适用[DeleteTranscriptionJob](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/DeleteTranscriptionJob)于 *Python 的AWS SDK (Boto3) API 参考*。 ### `DeleteVocabulary` 以下代码示例演示了如何使用 `DeleteVocabulary`。 **适用于 Python 的 SDK（Boto3）** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/transcribe#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` def delete_vocabulary(vocabulary_name, transcribe_client): """ Deletes a custom vocabulary. :param vocabulary_name: The name of the vocabulary to delete. :param transcribe_client: The Boto3 Transcribe client. """ try: transcribe_client.delete_vocabulary(VocabularyName=vocabulary_name) logger.info("Deleted vocabulary %s.", vocabulary_name) except ClientError: logger.exception("Couldn't delete vocabulary %s.", vocabulary_name) raise ``` + 有关 API 的详细信息，请参阅适用[DeleteVocabulary](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/DeleteVocabulary)于 *Python 的AWS SDK (Boto3) API 参考*。 ### `GetTranscriptionJob` 以下代码示例演示了如何使用 `GetTranscriptionJob`。 **适用于 Python 的 SDK（Boto3）** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/transcribe#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` def get_job(job_name, transcribe_client): """ Gets details about a transcription job. :param job_name: The name of the job to retrieve. :param transcribe_client: The Boto3 Transcribe client. :return: The retrieved transcription job. """ try: response = transcribe_client.get_transcription_job( TranscriptionJobName=job_name ) job = response["TranscriptionJob"] logger.info("Got job %s.", job["TranscriptionJobName"]) except ClientError: logger.exception("Couldn't get job %s.", job_name) raise else: return job ``` + 有关 API 的详细信息，请参阅适用[GetTranscriptionJob](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/GetTranscriptionJob)于 *Python 的AWS SDK (Boto3) API 参考*。 ### `GetVocabulary` 以下代码示例演示了如何使用 `GetVocabulary`。 **适用于 Python 的 SDK（Boto3）** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/transcribe#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` def get_vocabulary(vocabulary_name, transcribe_client): """ Gets information about a custom vocabulary. :param vocabulary_name: The name of the vocabulary to retrieve. :param transcribe_client: The Boto3 Transcribe client. :return: Information about the vocabulary. """ try: response = transcribe_client.get_vocabulary(VocabularyName=vocabulary_name) logger.info("Got vocabulary %s.", response["VocabularyName"]) except ClientError: logger.exception("Couldn't get vocabulary %s.", vocabulary_name) raise else: return response ``` + 有关 API 的详细信息，请参阅适用[GetVocabulary](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/GetVocabulary)于 *Python 的AWS SDK (Boto3) API 参考*。 ### `ListTranscriptionJobs` 以下代码示例演示了如何使用 `ListTranscriptionJobs`。 **适用于 Python 的 SDK（Boto3）** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/transcribe#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` def list_jobs(job_filter, transcribe_client): """ Lists summaries of the transcription jobs for the current AWS account. :param job_filter: The list of returned jobs must contain this string in their names. :param transcribe_client: The Boto3 Transcribe client. :return: The list of retrieved transcription job summaries. """ try: response = transcribe_client.list_transcription_jobs(JobNameContains=job_filter) jobs = response["TranscriptionJobSummaries"] next_token = response.get("NextToken") while next_token is not None: response = transcribe_client.list_transcription_jobs( JobNameContains=job_filter, NextToken=next_token ) jobs += response["TranscriptionJobSummaries"] next_token = response.get("NextToken") logger.info("Got %s jobs with filter %s.", len(jobs), job_filter) except ClientError: logger.exception("Couldn't get jobs with filter %s.", job_filter) raise else: return jobs ``` + 有关 API 的详细信息，请参阅适用[ListTranscriptionJobs](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/ListTranscriptionJobs)于 *Python 的AWS SDK (Boto3) API 参考*。 ### `ListVocabularies` 以下代码示例演示了如何使用 `ListVocabularies`。 **适用于 Python 的 SDK（Boto3）** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/transcribe#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` def list_vocabularies(vocabulary_filter, transcribe_client): """ Lists the custom vocabularies created for this AWS account. :param vocabulary_filter: The returned vocabularies must contain this string in their names. :param transcribe_client: The Boto3 Transcribe client. :return: The list of retrieved vocabularies. """ try: response = transcribe_client.list_vocabularies(NameContains=vocabulary_filter) vocabs = response["Vocabularies"] next_token = response.get("NextToken") while next_token is not None: response = transcribe_client.list_vocabularies( NameContains=vocabulary_filter, NextToken=next_token ) vocabs += response["Vocabularies"] next_token = response.get("NextToken") logger.info( "Got %s vocabularies with filter %s.", len(vocabs), vocabulary_filter ) except ClientError: logger.exception( "Couldn't list vocabularies with filter %s.", vocabulary_filter ) raise else: return vocabs ``` + 有关 API 的详细信息，请参阅适用[ListVocabularies](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/ListVocabularies)于 *Python 的AWS SDK (Boto3) API 参考*。 ### `StartTranscriptionJob` 以下代码示例演示了如何使用 `StartTranscriptionJob`。 **适用于 Python 的 SDK（Boto3）** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/transcribe#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` def start_job( job_name, media_uri, media_format, language_code, transcribe_client, vocabulary_name=None, ): """ Starts a transcription job. This function returns as soon as the job is started. To get the current status of the job, call get_transcription_job. The job is successfully completed when the job status is 'COMPLETED'. :param job_name: The name of the transcription job. This must be unique for your AWS account. :param media_uri: The URI where the audio file is stored. This is typically in an Amazon S3 bucket. :param media_format: The format of the audio file. For example, mp3 or wav. :param language_code: The language code of the audio file. For example, en-US or ja-JP :param transcribe_client: The Boto3 Transcribe client. :param vocabulary_name: The name of a custom vocabulary to use when transcribing the audio file. :return: Data about the job. """ try: job_args = { "TranscriptionJobName": job_name, "Media": {"MediaFileUri": media_uri}, "MediaFormat": media_format, "LanguageCode": language_code, } if vocabulary_name is not None: job_args["Settings"] = {"VocabularyName": vocabulary_name} response = transcribe_client.start_transcription_job(**job_args) job = response["TranscriptionJob"] logger.info("Started transcription job %s.", job_name) except ClientError: logger.exception("Couldn't start transcription job %s.", job_name) raise else: return job ``` + 有关 API 的详细信息，请参阅适用[StartTranscriptionJob](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/StartTranscriptionJob)于 *Python 的AWS SDK (Boto3) API 参考*。 ### `UpdateVocabulary` 以下代码示例演示了如何使用 `UpdateVocabulary`。 **适用于 Python 的 SDK（Boto3）** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/transcribe#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` def update_vocabulary( vocabulary_name, language_code, transcribe_client, phrases=None, table_uri=None ): """ Updates an existing custom vocabulary. The entire vocabulary is replaced with the contents of the update. :param vocabulary_name: The name of the vocabulary to update. :param language_code: The language code of the vocabulary. :param transcribe_client: The Boto3 Transcribe client. :param phrases: A list of comma-separated phrases to include in the vocabulary. :param table_uri: A table of phrases and pronunciation hints to include in the vocabulary. """ try: vocab_args = {"VocabularyName": vocabulary_name, "LanguageCode": language_code} if phrases is not None: vocab_args["Phrases"] = phrases elif table_uri is not None: vocab_args["VocabularyFileUri"] = table_uri response = transcribe_client.update_vocabulary(**vocab_args) logger.info("Updated custom vocabulary %s.", response["VocabularyName"]) except ClientError: logger.exception("Couldn't update custom vocabulary %s.", vocabulary_name) raise ``` + 有关 API 的详细信息，请参阅适用[UpdateVocabulary](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/UpdateVocabulary)于 *Python 的AWS SDK (Boto3) API 参考*。 ## 场景 ### 创建和完善自定义词汇表 以下代码示例展示了如何： + 将音频文件上传到 Amazon S3。 + 运行 Amazon Transcribe 作业来转录文件并获取结果。 + 创建和完善自定义词汇表，以提高转录的准确性。 + 使用自定义词汇表运行任务并获得结果。 **适用于 Python 的 SDK（Boto3）** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/transcribe#code-examples)中查找完整示例，了解如何进行设置和运行。 转录朗读 Lewis Carroll 的《Jabberwocky》的音频文件。首先创建封装 Amazon Transcribe 操作的函数。 ``` def start_job( job_name, media_uri, media_format, language_code, transcribe_client, vocabulary_name=None, ): """ Starts a transcription job. This function returns as soon as the job is started. To get the current status of the job, call get_transcription_job. The job is successfully completed when the job status is 'COMPLETED'. :param job_name: The name of the transcription job. This must be unique for your AWS account. :param media_uri: The URI where the audio file is stored. This is typically in an Amazon S3 bucket. :param media_format: The format of the audio file. For example, mp3 or wav. :param language_code: The language code of the audio file. For example, en-US or ja-JP :param transcribe_client: The Boto3 Transcribe client. :param vocabulary_name: The name of a custom vocabulary to use when transcribing the audio file. :return: Data about the job. """ try: job_args = { "TranscriptionJobName": job_name, "Media": {"MediaFileUri": media_uri}, "MediaFormat": media_format, "LanguageCode": language_code, } if vocabulary_name is not None: job_args["Settings"] = {"VocabularyName": vocabulary_name} response = transcribe_client.start_transcription_job(**job_args) job = response["TranscriptionJob"] logger.info("Started transcription job %s.", job_name) except ClientError: logger.exception("Couldn't start transcription job %s.", job_name) raise else: return job def get_job(job_name, transcribe_client): """ Gets details about a transcription job. :param job_name: The name of the job to retrieve. :param transcribe_client: The Boto3 Transcribe client. :return: The retrieved transcription job. """ try: response = transcribe_client.get_transcription_job( TranscriptionJobName=job_name ) job = response["TranscriptionJob"] logger.info("Got job %s.", job["TranscriptionJobName"]) except ClientError: logger.exception("Couldn't get job %s.", job_name) raise else: return job def delete_job(job_name, transcribe_client): """ Deletes a transcription job. This also deletes the transcript associated with the job. :param job_name: The name of the job to delete. :param transcribe_client: The Boto3 Transcribe client. """ try: transcribe_client.delete_transcription_job(TranscriptionJobName=job_name) logger.info("Deleted job %s.", job_name) except ClientError: logger.exception("Couldn't delete job %s.", job_name) raise def create_vocabulary( vocabulary_name, language_code, transcribe_client, phrases=None, table_uri=None ): """ Creates a custom vocabulary that can be used to improve the accuracy of transcription jobs. This function returns as soon as the vocabulary processing is started. Call get_vocabulary to get the current status of the vocabulary. The vocabulary is ready to use when its status is 'READY'. :param vocabulary_name: The name of the custom vocabulary. :param language_code: The language code of the vocabulary. For example, en-US or nl-NL. :param transcribe_client: The Boto3 Transcribe client. :param phrases: A list of comma-separated phrases to include in the vocabulary. :param table_uri: A table of phrases and pronunciation hints to include in the vocabulary. :return: Information about the newly created vocabulary. """ try: vocab_args = {"VocabularyName": vocabulary_name, "LanguageCode": language_code} if phrases is not None: vocab_args["Phrases"] = phrases elif table_uri is not None: vocab_args["VocabularyFileUri"] = table_uri response = transcribe_client.create_vocabulary(**vocab_args) logger.info("Created custom vocabulary %s.", response["VocabularyName"]) except ClientError: logger.exception("Couldn't create custom vocabulary %s.", vocabulary_name) raise else: return response def get_vocabulary(vocabulary_name, transcribe_client): """ Gets information about a custom vocabulary. :param vocabulary_name: The name of the vocabulary to retrieve. :param transcribe_client: The Boto3 Transcribe client. :return: Information about the vocabulary. """ try: response = transcribe_client.get_vocabulary(VocabularyName=vocabulary_name) logger.info("Got vocabulary %s.", response["VocabularyName"]) except ClientError: logger.exception("Couldn't get vocabulary %s.", vocabulary_name) raise else: return response def update_vocabulary( vocabulary_name, language_code, transcribe_client, phrases=None, table_uri=None ): """ Updates an existing custom vocabulary. The entire vocabulary is replaced with the contents of the update. :param vocabulary_name: The name of the vocabulary to update. :param language_code: The language code of the vocabulary. :param transcribe_client: The Boto3 Transcribe client. :param phrases: A list of comma-separated phrases to include in the vocabulary. :param table_uri: A table of phrases and pronunciation hints to include in the vocabulary. """ try: vocab_args = {"VocabularyName": vocabulary_name, "LanguageCode": language_code} if phrases is not None: vocab_args["Phrases"] = phrases elif table_uri is not None: vocab_args["VocabularyFileUri"] = table_uri response = transcribe_client.update_vocabulary(**vocab_args) logger.info("Updated custom vocabulary %s.", response["VocabularyName"]) except ClientError: logger.exception("Couldn't update custom vocabulary %s.", vocabulary_name) raise def list_vocabularies(vocabulary_filter, transcribe_client): """ Lists the custom vocabularies created for this AWS account. :param vocabulary_filter: The returned vocabularies must contain this string in their names. :param transcribe_client: The Boto3 Transcribe client. :return: The list of retrieved vocabularies. """ try: response = transcribe_client.list_vocabularies(NameContains=vocabulary_filter) vocabs = response["Vocabularies"] next_token = response.get("NextToken") while next_token is not None: response = transcribe_client.list_vocabularies( NameContains=vocabulary_filter, NextToken=next_token ) vocabs += response["Vocabularies"] next_token = response.get("NextToken") logger.info( "Got %s vocabularies with filter %s.", len(vocabs), vocabulary_filter ) except ClientError: logger.exception( "Couldn't list vocabularies with filter %s.", vocabulary_filter ) raise else: return vocabs def delete_vocabulary(vocabulary_name, transcribe_client): """ Deletes a custom vocabulary. :param vocabulary_name: The name of the vocabulary to delete. :param transcribe_client: The Boto3 Transcribe client. """ try: transcribe_client.delete_vocabulary(VocabularyName=vocabulary_name) logger.info("Deleted vocabulary %s.", vocabulary_name) except ClientError: logger.exception("Couldn't delete vocabulary %s.", vocabulary_name) raise ``` 调用包装器函数在没有自定义词汇表的情况下转录音频，然后使用不同版本的自定义词汇表来查看改进的结果。 ``` def usage_demo(): """Shows how to use the Amazon Transcribe service.""" logging.basicConfig(level=logging.INFO, format="%(levelname)s: %(message)s") s3_resource = boto3.resource("s3") transcribe_client = boto3.client("transcribe") print("-" * 88) print("Welcome to the Amazon Transcribe demo!") print("-" * 88) bucket_name = f"jabber-bucket-{time.time_ns()}" print(f"Creating bucket {bucket_name}.") bucket = s3_resource.create_bucket( Bucket=bucket_name, CreateBucketConfiguration={ "LocationConstraint": transcribe_client.meta.region_name }, ) media_file_name = ".media/Jabberwocky.mp3" media_object_key = "Jabberwocky.mp3" print(f"Uploading media file {media_file_name}.") bucket.upload_file(media_file_name, media_object_key) media_uri = f"s3://{bucket.name}/{media_object_key}" job_name_simple = f"Jabber-{time.time_ns()}" print(f"Starting transcription job {job_name_simple}.") start_job( job_name_simple, f"s3://{bucket_name}/{media_object_key}", "mp3", "en-US", transcribe_client, ) transcribe_waiter = TranscribeCompleteWaiter(transcribe_client) transcribe_waiter.wait(job_name_simple) job_simple = get_job(job_name_simple, transcribe_client) transcript_simple = requests.get( job_simple["Transcript"]["TranscriptFileUri"] ).json() print(f"Transcript for job {transcript_simple['jobName']}:") print(transcript_simple["results"]["transcripts"][0]["transcript"]) print("-" * 88) print( "Creating a custom vocabulary that lists the nonsense words to try to " "improve the transcription." ) vocabulary_name = f"Jabber-vocabulary-{time.time_ns()}" create_vocabulary( vocabulary_name, "en-US", transcribe_client, phrases=[ "brillig", "slithy", "borogoves", "mome", "raths", "Jub-Jub", "frumious", "manxome", "Tumtum", "uffish", "whiffling", "tulgey", "thou", "frabjous", "callooh", "callay", "chortled", ], ) vocabulary_ready_waiter = VocabularyReadyWaiter(transcribe_client) vocabulary_ready_waiter.wait(vocabulary_name) job_name_vocabulary_list = f"Jabber-vocabulary-list-{time.time_ns()}" print(f"Starting transcription job {job_name_vocabulary_list}.") start_job( job_name_vocabulary_list, media_uri, "mp3", "en-US", transcribe_client, vocabulary_name, ) transcribe_waiter.wait(job_name_vocabulary_list) job_vocabulary_list = get_job(job_name_vocabulary_list, transcribe_client) transcript_vocabulary_list = requests.get( job_vocabulary_list["Transcript"]["TranscriptFileUri"] ).json() print(f"Transcript for job {transcript_vocabulary_list['jobName']}:") print(transcript_vocabulary_list["results"]["transcripts"][0]["transcript"]) print("-" * 88) print( "Updating the custom vocabulary with table data that provides additional " "pronunciation hints." ) table_vocab_file = "jabber-vocabulary-table.txt" bucket.upload_file(table_vocab_file, table_vocab_file) update_vocabulary( vocabulary_name, "en-US", transcribe_client, table_uri=f"s3://{bucket.name}/{table_vocab_file}", ) vocabulary_ready_waiter.wait(vocabulary_name) job_name_vocab_table = f"Jabber-vocab-table-{time.time_ns()}" print(f"Starting transcription job {job_name_vocab_table}.") start_job( job_name_vocab_table, media_uri, "mp3", "en-US", transcribe_client, vocabulary_name=vocabulary_name, ) transcribe_waiter.wait(job_name_vocab_table) job_vocab_table = get_job(job_name_vocab_table, transcribe_client) transcript_vocab_table = requests.get( job_vocab_table["Transcript"]["TranscriptFileUri"] ).json() print(f"Transcript for job {transcript_vocab_table['jobName']}:") print(transcript_vocab_table["results"]["transcripts"][0]["transcript"]) print("-" * 88) print("Getting data for jobs and vocabularies.") jabber_jobs = list_jobs("Jabber", transcribe_client) print(f"Found {len(jabber_jobs)} jobs:") for job_sum in jabber_jobs: job = get_job(job_sum["TranscriptionJobName"], transcribe_client) print( f"\t{job['TranscriptionJobName']}, {job['Media']['MediaFileUri']}, " f"{job['Settings'].get('VocabularyName')}" ) jabber_vocabs = list_vocabularies("Jabber", transcribe_client) print(f"Found {len(jabber_vocabs)} vocabularies:") for vocab_sum in jabber_vocabs: vocab = get_vocabulary(vocab_sum["VocabularyName"], transcribe_client) vocab_content = requests.get(vocab["DownloadUri"]).text print(f"\t{vocab['VocabularyName']} contents:") print(vocab_content) print("-" * 88) print("Deleting demo jobs.") for job_name in [job_name_simple, job_name_vocabulary_list, job_name_vocab_table]: delete_job(job_name, transcribe_client) print("Deleting demo vocabulary.") delete_vocabulary(vocabulary_name, transcribe_client) print("Deleting demo bucket.") bucket.objects.delete() bucket.delete() print("Thanks for watching!") ``` + 有关 API 详细信息，请参阅《AWS SDK for Python (Boto3) API Reference》**中的以下主题。 + [CreateVocabulary](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/CreateVocabulary) + [DeleteTranscriptionJob](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/DeleteTranscriptionJob) + [DeleteVocabulary](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/DeleteVocabulary) + [GetTranscriptionJob](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/GetTranscriptionJob) + [GetVocabulary](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/GetVocabulary) + [ListVocabularies](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/ListVocabularies) + [StartTranscriptionJob](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/StartTranscriptionJob) + [UpdateVocabulary](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/UpdateVocabulary) ### 转录音频并获取任务数据 以下代码示例展示了如何： + 使用 Amazon Transcribe 开始转录作业。 + 等待作业完成。 + 获取存储转录的 URI。 有关更多信息，请参阅 [Amazon Transcribe 入门](https://docs.aws.amazon.com/transcribe/latest/dg/getting-started.html)。 **适用于 Python 的 SDK（Boto3）** 还有更多相关信息 GitHub。在 [AWS 代码示例存储库](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/python/example_code/transcribe#code-examples)中查找完整示例，了解如何进行设置和运行。 ``` import time import boto3 def transcribe_file(job_name, file_uri, transcribe_client): transcribe_client.start_transcription_job( TranscriptionJobName=job_name, Media={"MediaFileUri": file_uri}, MediaFormat="wav", LanguageCode="en-US", ) max_tries = 60 while max_tries > 0: max_tries -= 1 job = transcribe_client.get_transcription_job(TranscriptionJobName=job_name) job_status = job["TranscriptionJob"]["TranscriptionJobStatus"] if job_status in ["COMPLETED", "FAILED"]: print(f"Job {job_name} is {job_status}.") if job_status == "COMPLETED": print( f"Download the transcript from\n" f"\t{job['TranscriptionJob']['Transcript']['TranscriptFileUri']}." ) break else: print(f"Waiting for {job_name}. Current status is {job_status}.") time.sleep(10) def main(): transcribe_client = boto3.client("transcribe") file_uri = "s3://test-transcribe/answer2.wav" transcribe_file("Example-job", file_uri, transcribe_client) if __name__ == "__main__": main() ``` + 有关 API 详细信息，请参阅《AWS SDK for Python (Boto3) API Reference》**中的以下主题。 + [GetTranscriptionJob](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/GetTranscriptionJob) + [StartTranscriptionJob](https://docs.aws.amazon.com/goto/boto3/transcribe-2017-10-26/StartTranscriptionJob)