Class SpeechAsyncClient (2.0.1) 

SpeechAsyncClient(*, credentials: google.auth.credentials.Credentials = None, transport: Union[str, google.cloud.speech_v1p1beta1.services.speech.transports.base.SpeechTransport] = 'grpc_asyncio', client_options: <module 'google.api_core.client_options' from '/workspace/python-speech/.nox/docfx/lib/python3.9/site-packages/google/api_core/client_options.py'> = None, client_info: google.api_core.gapic_v1.client_info.ClientInfo = <google.api_core.gapic_v1.client_info.ClientInfo object>)

Service that implements Google Cloud Speech API.

Methods

SpeechAsyncClient

SpeechAsyncClient(*, credentials: google.auth.credentials.Credentials = None, transport: Union[str, google.cloud.speech_v1p1beta1.services.speech.transports.base.SpeechTransport] = 'grpc_asyncio', client_options: <module 'google.api_core.client_options' from '/workspace/python-speech/.nox/docfx/lib/python3.9/site-packages/google/api_core/client_options.py'> = None, client_info: google.api_core.gapic_v1.client_info.ClientInfo = <google.api_core.gapic_v1.client_info.ClientInfo object>)

Instantiate the speech client.

Parameters
Name Description
credentials Optional[google.auth.credentials.Credentials]

The authorization credentials to attach to requests. These credentials identify the application to the service; if none are specified, the client will attempt to ascertain the credentials from the environment.
transport Union[str, .SpeechTransport]

The transport to use. If set to None, a transport is chosen automatically.
client_options ClientOptions

Custom options for the client. It won't take effect if a transport instance is provided. (1) The api_endpoint property can be used to override the default endpoint provided by the client. GOOGLE_API_USE_MTLS_ENDPOINT environment variable can also be used to override the endpoint: "always" (always use the default mTLS endpoint), "never" (always use the default regular endpoint) and "auto" (auto switch to the default mTLS endpoint if client certificate is present, this is the default value). However, the api_endpoint property takes precedence if provided. (2) If GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable is "true", then the client_cert_source property can be used to provide client certificate for mutual TLS transport. If not provided, the default SSL client certificate will be used if present. If GOOGLE_API_USE_CLIENT_CERTIFICATE is "false" or not set, no client certificate will be used.
Exceptions
Type Description
google.auth.exceptions.MutualTlsChannelError If mutual TLS transport creation failed for any reason.

custom_class_path

custom_class_path(project: str, location: str, custom_class: str)

Return a fully-qualified custom_class string.

from_service_account_file

from_service_account_file(filename: str, *args, **kwargs)

Creates an instance of this client using the provided credentials file.

Parameter
Name Description
filename str

The path to the service account private key json file.
Returns
Type Description
{@api.name} The constructed client.

from_service_account_json

from_service_account_json(filename: str, *args, **kwargs)

Creates an instance of this client using the provided credentials file.

Parameter
Name Description
filename str

The path to the service account private key json file.
Returns
Type Description
{@api.name} The constructed client.

get_transport_class

get_transport_class()

Return an appropriate transport class.

long_running_recognize

long_running_recognize(request: Optional[google.cloud.speech_v1p1beta1.types.cloud_speech.LongRunningRecognizeRequest] = None, *, config: Optional[google.cloud.speech_v1p1beta1.types.cloud_speech.RecognitionConfig] = None, audio: Optional[google.cloud.speech_v1p1beta1.types.cloud_speech.RecognitionAudio] = None, retry: google.api_core.retry.Retry = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None, metadata: Sequence[Tuple[str, str]] = ())

Performs asynchronous speech recognition: receive results via the google.longrunning.Operations interface. Returns either an Operation.error or an Operation.response which contains a LongRunningRecognizeResponse message. For more information on asynchronous speech recognition, see the how-to <https://cloud.google.com/speech-to-text/docs/async-recognize>__.

Parameters
Name Description
request .cloud_speech.LongRunningRecognizeRequest

The request object. The top-level message sent by the client for the LongRunningRecognize method.
config .cloud_speech.RecognitionConfig

Required. Provides information to the recognizer that specifies how to process the request. This corresponds to the config field on the request instance; if request is provided, this should not be set.
audio .cloud_speech.RecognitionAudio

Required. The audio data to be recognized. This corresponds to the audio field on the request instance; if request is provided, this should not be set.
retry google.api_core.retry.Retry

Designation of what errors, if any, should be retried.
timeout float

The timeout for this request.
metadata Sequence[Tuple[str, str]]

Strings which should be sent along with the request as metadata.
Returns
Type Description
.operation_async.AsyncOperation An object representing a long-running operation. The result type for the operation will be 
.cloud_speech.LongRunningRecognizeResponse
: The only message returned to the client by the LongRunningRecognize method. It contains the result as zero or more sequential SpeechRecognitionResult messages. It is included in the result.response field of the Operation returned by the GetOperation call of the google::longrunning::Operations service.

parse_custom_class_path

parse_custom_class_path(path: str)

Parse a custom_class path into its component segments.

parse_phrase_set_path

parse_phrase_set_path(path: str)

Parse a phrase_set path into its component segments.

phrase_set_path

phrase_set_path(project: str, location: str, phrase_set: str)

Return a fully-qualified phrase_set string.

recognize

recognize(request: Optional[google.cloud.speech_v1p1beta1.types.cloud_speech.RecognizeRequest] = None, *, config: Optional[google.cloud.speech_v1p1beta1.types.cloud_speech.RecognitionConfig] = None, audio: Optional[google.cloud.speech_v1p1beta1.types.cloud_speech.RecognitionAudio] = None, retry: google.api_core.retry.Retry = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None, metadata: Sequence[Tuple[str, str]] = ())

Performs synchronous speech recognition: receive results after all audio has been sent and processed.

Parameters
Name Description
request .cloud_speech.RecognizeRequest

The request object. The top-level message sent by the client for the Recognize method.
config .cloud_speech.RecognitionConfig

Required. Provides information to the recognizer that specifies how to process the request. This corresponds to the config field on the request instance; if request is provided, this should not be set.
audio .cloud_speech.RecognitionAudio

Required. The audio data to be recognized. This corresponds to the audio field on the request instance; if request is provided, this should not be set.
retry google.api_core.retry.Retry

Designation of what errors, if any, should be retried.
timeout float

The timeout for this request.
metadata Sequence[Tuple[str, str]]

Strings which should be sent along with the request as metadata.
Returns
Type Description
.cloud_speech.RecognizeResponse The only message returned to the client by the Recognize method. It contains the result as zero or more sequential SpeechRecognitionResult messages.

streaming_recognize

streaming_recognize(requests: Optional[AsyncIterator[google.cloud.speech_v1p1beta1.types.cloud_speech.StreamingRecognizeRequest]] = None, *, retry: google.api_core.retry.Retry = <_MethodDefault._DEFAULT_VALUE: <object object>>, timeout: Optional[float] = None, metadata: Sequence[Tuple[str, str]] = ())

Performs bidirectional streaming speech recognition: receive results while sending audio. This method is only available via the gRPC API (not REST).

Parameters
Name Description
requests AsyncIterator[.cloud_speech.StreamingRecognizeRequest]

The request object AsyncIterator. The top-level message sent by the client for the StreamingRecognize method. Multiple StreamingRecognizeRequest messages are sent. The first message must contain a streaming_config message and must not contain audio_content. All subsequent messages must contain audio_content and must not contain a streaming_config message.
retry google.api_core.retry.Retry

Designation of what errors, if any, should be retried.
timeout float

The timeout for this request.
metadata Sequence[Tuple[str, str]]

Strings which should be sent along with the request as metadata.
Returns
Type Description
AsyncIterable[.cloud_speech.StreamingRecognizeResponse] StreamingRecognizeResponse is the only message returned to the client by StreamingRecognize. A series of zero or more StreamingRecognizeResponse messages are streamed back to the client. If there is no recognizable audio, and single_utterance is set to false, then no messages are streamed back to the client. Here's an example of a series of ten StreamingRecognizeResponse\ s that might be returned while processing audio: 1. results { alternatives { transcript: "tube" } stability: 0.01 } 2. results { alternatives { transcript: "to be a" } stability: 0.01 } 3. results { alternatives { transcript: "to be" } stability: 0.9 } results { alternatives { transcript: " or not to be" } stability: 0.01 } 4. results { alternatives { transcript: "to be or not to be" confidence: 0.92 } alternatives { transcript: "to bee or not to bee" } is_final: true } 5. results { alternatives { transcript: " that's" } stability: 0.01 } 6. results { alternatives { transcript: " that is" } stability: 0.9 } results { alternatives { transcript: " the question" } stability: 0.01 } 7. results { alternatives { transcript: " that is the question" confidence: 0.98 } alternatives { transcript: " that was the question" } is_final: true } Notes: - Only two of the above responses #4 and #7 contain final results; they are indicated by is_final: true. Concatenating these together generates the full transcript: "to be or not to be that is the question". - The others contain interim results. #3 and #6 contain two interim results: the first portion has a high stability and is less likely to change; the second portion has a low stability and is very likely to change. A UI designer might choose to show only high stability results. - The specific stability and confidence values shown above are only for illustrative purposes. Actual values may vary. - In each response, only one of these fields will be set: error, speech_event_type, or one or more (repeated) results.