Class SpeechAsyncClient (2.0.1)

SpeechAsyncClient(*, credentials: google.auth.credentials.Credentials = None, transport: Union[str, google.cloud.speech_v1.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_v1.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.

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_v1.types.cloud_speech.LongRunningRecognizeRequest] = None, *, config: Optional[google.cloud.speech_v1.types.cloud_speech.RecognitionConfig] = None, audio: Optional[google.cloud.speech_v1.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.

recognize

recognize(request: Optional[google.cloud.speech_v1.types.cloud_speech.RecognizeRequest] = None, *, config: Optional[google.cloud.speech_v1.types.cloud_speech.RecognitionConfig] = None, audio: Optional[google.cloud.speech_v1.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_v1.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.