Cloud Text-to-Speech V1 Client - Class TextToSpeechClient (1.5.6)

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();
}

Many parameters require resource names to be formatted in a particular way. To assist with these names, this class includes a format method for each type of name, and additionally a parseName method to extract the individual identifiers contained within formatted names that are returned by the API.

Methods

modelName

Formats a string containing the fully-qualified path to represent a model resource.

Parameters
Name	Description
`project`	`string`
`location`	`string`
`model`	`string`

Returns
Type	Description
`string`	The formatted model resource.

parseName

Parses a formatted name string and returns an associative array of the components in the name.

The following name formats are supported: Template: Pattern

model: projects/{project}/locations/{location}/models/{model}

The optional $template argument can be supplied to specify a particular pattern, and must match one of the templates listed above. If no $template argument is provided, or if the $template argument does not match one of the templates listed, then parseName will check each of the supported templates, and return the first match.

Parameters
Name	Description
`formattedName`	`string` The formatted name string
`template`	`string` Optional name of template to match

Returns
Type	Description
`array`	An associative array from name component IDs to component values.

__construct

Constructor.

Parameters
Name	Description
`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 Google\Auth\FetchAuthTokenInterface object or Google\ApiCore\CredentialsWrapper 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 Google\ApiCore\CredentialsWrapper::build() .
`↳ 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 Google\ApiCore\Transport\TransportInterface 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 Google\ApiCore\Transport\GrpcTransport::build() and Google\ApiCore\Transport\RestTransport::build() 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.

Parameters
Name	Description
`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 Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
Type	Description
`Google\Cloud\TextToSpeech\V1\ListVoicesResponse`

Example

use Google\ApiCore\ApiException;
use Google\Cloud\TextToSpeech\V1\ListVoicesResponse;
use Google\Cloud\TextToSpeech\V1\TextToSpeechClient;

/**
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function list_voices_sample(): void
{
    // Create a client.
    $textToSpeechClient = new TextToSpeechClient();

    // Call the API and handle any network failures.
    try {
        /** @var ListVoicesResponse $response */
        $response = $textToSpeechClient->listVoices();
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

synthesizeSpeech

Synthesizes speech synchronously: receive results after all text input has been processed.

Parameters
Name	Description
`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`	`Google\Cloud\TextToSpeech\V1\AudioConfig` Required. The configuration of the synthesized audio.
`optionalArgs`	`array` Optional.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
Type	Description
`Google\Cloud\TextToSpeech\V1\SynthesizeSpeechResponse`

Example

use Google\ApiCore\ApiException;
use Google\Cloud\TextToSpeech\V1\AudioConfig;
use Google\Cloud\TextToSpeech\V1\AudioEncoding;
use Google\Cloud\TextToSpeech\V1\SynthesisInput;
use Google\Cloud\TextToSpeech\V1\SynthesizeSpeechResponse;
use Google\Cloud\TextToSpeech\V1\TextToSpeechClient;
use Google\Cloud\TextToSpeech\V1\VoiceSelectionParams;

/**
 * @param string $voiceLanguageCode        The language (and potentially also the region) of the voice
 *                                         expressed as a [BCP-47](https://www.rfc-editor.org/rfc/bcp/bcp47.txt)
 *                                         language tag, e.g. "en-US". This should not include a script tag (e.g. use
 *                                         "cmn-cn" rather than "cmn-Hant-cn"), because the script will be inferred
 *                                         from the input provided in the SynthesisInput.  The TTS service
 *                                         will use this parameter to help choose an appropriate voice.  Note that
 *                                         the TTS service may choose a voice with a slightly different language code
 *                                         than the one selected; it may substitute a different region
 *                                         (e.g. using en-US rather than en-CA if there isn't a Canadian voice
 *                                         available), or even a different language, e.g. using "nb" (Norwegian
 *                                         Bokmal) instead of "no" (Norwegian)".
 * @param int    $audioConfigAudioEncoding The format of the audio byte stream.
 */
function synthesize_speech_sample(string $voiceLanguageCode, int $audioConfigAudioEncoding): void
{
    // Create a client.
    $textToSpeechClient = new TextToSpeechClient();

    // Prepare any non-scalar elements to be passed along with the request.
    $input = new SynthesisInput();
    $voice = (new VoiceSelectionParams())
        ->setLanguageCode($voiceLanguageCode);
    $audioConfig = (new AudioConfig())
        ->setAudioEncoding($audioConfigAudioEncoding);

    // Call the API and handle any network failures.
    try {
        /** @var SynthesizeSpeechResponse $response */
        $response = $textToSpeechClient->synthesizeSpeech($input, $voice, $audioConfig);
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $voiceLanguageCode = '[LANGUAGE_CODE]';
    $audioConfigAudioEncoding = AudioEncoding::AUDIO_ENCODING_UNSPECIFIED;

    synthesize_speech_sample($voiceLanguageCode, $audioConfigAudioEncoding);
}

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.