Reference documentation and code samples for the Cloud Text-to-Speech V1 Client class TextToSpeechClient.
Service Description: Service that implements Google Cloud Text-to-Speech API.
This class provides the ability to make remote calls to the backing service through method calls that map to API methods. Sample code to get started:
$textToSpeechClient = new TextToSpeechClient();
try {
$response = $textToSpeechClient->listVoices();
} finally {
$textToSpeechClient->close();
}
Methods
__construct
Constructor.
options
array
Optional. Options for configuring the service API wrapper.
↳ apiEndpoint
string
The address of the API remote host. May optionally include the port, formatted as "
↳ credentials
string|array|FetchAuthTokenInterface|CredentialsWrapper
The credentials to be used by the client to authorize API calls. This option accepts either a path to a credentials file, or a decoded credentials file as a PHP array. Advanced usage : In addition, this option can also accept a pre-constructed {@see} object or {@see} object. Note that when one of these objects are provided, any settings in $credentialsConfig will be ignored.
↳ credentialsConfig
array
Options used to configure credentials, including auth token caching, for the client. For a full list of supporting configuration options, see {@see} .
↳ disableRetries
bool
Determines whether or not retries defined by the client configuration should be disabled. Defaults to false
.
↳ clientConfig
string|array
Client method configuration, including retry settings. This option can be either a path to a JSON file, or a PHP array containing the decoded JSON data. By default this settings points to the default client config file, which is provided in the resources folder.
↳ transport
string|TransportInterface
The transport used for executing network requests. May be either the string rest
or grpc
. Defaults to grpc
if gRPC support is detected on the system. Advanced usage
: Additionally, it is possible to pass in an already instantiated {@see} object. Note that when this object is provided, any settings in $transportConfig, and any $apiEndpoint setting, will be ignored.
↳ transportConfig
array
Configuration options that will be used to construct the transport. Options for each supported transport type should be passed in a key for that transport. For example: $transportConfig = [ 'grpc' => [...], 'rest' => [...], ]; See the {@see} and {@see} methods for the supported options.
↳ clientCertSource
callable
A callable which returns the client cert as a string. This can be used to provide a certificate and private key to the transport layer for mTLS.
listVoices
Returns a list of Voice supported for synthesis.
Sample code:
$textToSpeechClient = new TextToSpeechClient();
try {
$response = $textToSpeechClient->listVoices();
} finally {
$textToSpeechClient->close();
}
optionalArgs
array
Optional.
↳ languageCode
string
Optional. Recommended. BCP-47
language tag. If not specified, the API will return all supported voices. If specified, the ListVoices call will only return voices that can be used to synthesize this language_code. For example, if you specify "en-NZ"
, all "en-NZ"
voices will be returned. If you specify "no"
, both "no-\*"
(Norwegian) and "nb-\*"
(Norwegian Bokmal) voices will be returned.
↳ retrySettings
RetrySettings|array
Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.
synthesizeSpeech
Synthesizes speech synchronously: receive results after all text input has been processed.
Sample code:
$textToSpeechClient = new TextToSpeechClient();
try {
$input = new SynthesisInput();
$voice = new VoiceSelectionParams();
$audioConfig = new AudioConfig();
$response = $textToSpeechClient->synthesizeSpeech($input, $voice, $audioConfig);
} finally {
$textToSpeechClient->close();
}
input
Google\Cloud\TextToSpeech\V1\SynthesisInput
Required. The Synthesizer requires either plain text or SSML as input.
voice
Google\Cloud\TextToSpeech\V1\VoiceSelectionParams
Required. The desired voice of the synthesized audio.
audioConfig
optionalArgs
array
Optional.
↳ retrySettings
RetrySettings|array
Retry settings to use for this call. Can be a {@see} object, or an associative array of retry settings parameters. See the documentation on {@see} for example usage.
Constants
SERVICE_NAME
Value: 'google.cloud.texttospeech.v1.TextToSpeech'
The name of the service.
SERVICE_ADDRESS
Value: 'texttospeech.googleapis.com'
The default address of the service.
DEFAULT_SERVICE_PORT
Value: 443
The default port of the service.
CODEGEN_NAME
Value: 'gapic'
The name of the code generator, to be included in the agent header.

