Class SpeechClient (1.2.0)

Version 1.2.0

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SpeechClient(
    transport=None,
    channel=None,
    credentials=None,
    client_config=None,
    client_info=None,
    client_options=None,
)

Service that implements Google Cloud Speech API.

Methods

SpeechClient

SpeechClient(
    transport=None,
    channel=None,
    credentials=None,
    client_config=None,
    client_info=None,
    client_options=None,
)

Constructor.

Parameters
Name	Description
channel	grpc.Channel DEPRECATED. A Channel instance through which to make calls. This argument is mutually exclusive with credentials; providing both will raise an exception.
credentials	google.auth.credentials.Credentials The authorization credentials to attach to requests. These credentials identify this application to the service. If none are specified, the client will attempt to ascertain the credentials from the environment. This argument is mutually exclusive with providing a transport instance to transport; doing so will raise an exception.
client_config	dict DEPRECATED. A dictionary of call options for each method. If not specified, the default configuration is used.
client_info	google.api_core.gapic_v1.client_info.ClientInfo The client info used to send a user-agent string along with API requests. If None, then default info will be used. Generally, you only need to set this if you're developing your own client library.
client_options	Union[dict, google.api_core.client_options.ClientOptions] Client options used to set user options on the client. API Endpoint should be set through client_options.

from_service_account_file

from_service_account_file(filename, *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
SpeechClient	The constructed client.

from_service_account_json

from_service_account_json(filename, *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
SpeechClient	The constructed client.

long_running_recognize

long_running_recognize(config, audio, retry=<_MethodDefault._DEFAULT_VALUE: <object object>>, timeout=<_MethodDefault._DEFAULT_VALUE: <object object>>, metadata=None)

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.

.. rubric:: Example

from google.cloud import speech_v1p1beta1 from google.cloud.speech_v1p1beta1 import enums

client = speech_v1p1beta1.SpeechClient()

encoding = enums.RecognitionConfig.AudioEncoding.FLAC sample_rate_hertz = 44100 language_code = 'en-US' config = {'encoding': encoding, 'sample_rate_hertz': sample_rate_hertz, 'language_code': language_code} uri = 'gs://bucket_name/file_name.flac' audio = {'uri': uri}

response = client.long_running_recognize(config, audio)

def callback(operation_future): ... # Handle result. ... result = operation_future.result()

response.add_done_callback(callback)

Handle metadata.

metadata = response.metadata()

Parameters
Name	Description
config	Union[dict, RecognitionConfig] Required Provides information to the recognizer that specifies how to process the request. If a dict is provided, it must be of the same form as the protobuf message RecognitionConfig
audio	Union[dict, RecognitionAudio] Required The audio data to be recognized. If a dict is provided, it must be of the same form as the protobuf message RecognitionAudio
retry	Optional[google.api_core.retry.Retry] A retry object used to retry requests. If None is specified, requests will not be retried.
timeout	Optional[float] The amount of time, in seconds, to wait for the request to complete. Note that if retry is specified, the timeout applies to each individual attempt.
metadata	Optional[Sequence[Tuple[str, str]]] Additional metadata that is provided to the method.

Exceptions
Type	Description
google.api_core.exceptions.GoogleAPICallError	If the request failed for any reason.
google.api_core.exceptions.RetryError	If the request failed due to a retryable error and retry attempts failed.
ValueError	If the parameters are invalid.

recognize

recognize(config, audio, retry=<_MethodDefault._DEFAULT_VALUE: <object object>>, timeout=<_MethodDefault._DEFAULT_VALUE: <object object>>, metadata=None)

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

.. rubric:: Example

from google.cloud import speech_v1p1beta1 from google.cloud.speech_v1p1beta1 import enums

client = speech_v1p1beta1.SpeechClient()

encoding = enums.RecognitionConfig.AudioEncoding.FLAC sample_rate_hertz = 44100 language_code = 'en-US' config = {'encoding': encoding, 'sample_rate_hertz': sample_rate_hertz, 'language_code': language_code} uri = 'gs://bucket_name/file_name.flac' audio = {'uri': uri}

response = client.recognize(config, audio)

Parameters
Name	Description
config	Union[dict, RecognitionConfig] Required Provides information to the recognizer that specifies how to process the request. If a dict is provided, it must be of the same form as the protobuf message RecognitionConfig
audio	Union[dict, RecognitionAudio] Required The audio data to be recognized. If a dict is provided, it must be of the same form as the protobuf message RecognitionAudio
retry	Optional[google.api_core.retry.Retry] A retry object used to retry requests. If None is specified, requests will not be retried.
timeout	Optional[float] The amount of time, in seconds, to wait for the request to complete. Note that if retry is specified, the timeout applies to each individual attempt.
metadata	Optional[Sequence[Tuple[str, str]]] Additional metadata that is provided to the method.

Exceptions
Type	Description
google.api_core.exceptions.GoogleAPICallError	If the request failed for any reason.
google.api_core.exceptions.RetryError	If the request failed due to a retryable error and retry attempts failed.
ValueError	If the parameters are invalid.

streaming_recognize

streaming_recognize(config, requests, retry=<_MethodDefault._DEFAULT_VALUE: <object object>>, timeout=<_MethodDefault._DEFAULT_VALUE: <object object>>)

Perform bi-directional speech recognition.

This method allows you to receive results while sending audio; it is only available via. gRPC (not REST).

Warning: This method is EXPERIMENTAL. Its interface might change in the future.

from google.cloud.speech_v1 import enums from google.cloud.speech_v1 import SpeechClient from google.cloud.speech_v1 import types client = SpeechClient() config = types.StreamingRecognitionConfig( ... config=types.RecognitionConfig( ... encoding=enums.RecognitionConfig.AudioEncoding.FLAC, ... ), ... ) request = types.StreamingRecognizeRequest(audio_content=b'...') requests = [request] for element in client.streaming_recognize(config, requests): ... # process element ... pass

Parameters
Name	Description
config	.types.StreamingRecognitionConfig The configuration to use for the stream.
requests	Iterable[.types.StreamingRecognizeRequest] The input objects.
retry	Optional[google.api_core.retry.Retry] A retry object used to retry requests. If None is specified, requests will not be retried.
timeout	Optional[float] The amount of time, in seconds, to wait for the request to complete. Note that if retry is specified, the timeout applies to each individual attempt.

Exceptions
Type	Description
google.gax.errors.GaxError
ValueError