texttospeech

package
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 Go to latest Published: Feb 12, 2021 License: BSD-3-Clause Imports: 15 Imported by: 0

Documentation

Overview

Package texttospeech provides access to the Cloud Text-to-Speech API.

This package is DEPRECATED. Use package cloud.google.com/go/texttospeech/apiv1 instead.

For product documentation, see: https://cloud.google.com/text-to-speech/

Creating a client

Usage example: 

import "google.golang.org/api/texttospeech/v1"
...
ctx := context.Background()
texttospeechService, err := texttospeech.NewService(ctx)

In this example, Google Application Default Credentials are used for authentication.

For information on how to create and obtain Application Default Credentials, see https://developers.google.com/identity/protocols/application-default-credentials.

Other authentication options

To use an API key for authentication (note: some APIs do not support API keys), use option.WithAPIKey: 

texttospeechService, err := texttospeech.NewService(ctx, option.WithAPIKey("AIza..."))

To use an OAuth token (e.g., a user token obtained via a three-legged OAuth flow), use option.WithTokenSource: 

config := &oauth2.Config{...}
// ...
token, err := config.Exchange(ctx, ...)
texttospeechService, err := texttospeech.NewService(ctx, option.WithTokenSource(config.TokenSource(ctx, token)))

See https://godoc.org/google.golang.org/api/option/ for details on options.

Index

Constants

View Source 
const (
	// View and manage your data across Google Cloud Platform services
	CloudPlatformScope = "https://www.googleapis.com/auth/cloud-platform"
)

OAuth2 scopes used by this API.

Variables

This section is empty.

Functions

This section is empty.

Types

type AudioConfig 

type AudioConfig struct {
	// AudioEncoding: Required. The format of the audio byte stream.
	//
	// Possible values:
	//   "AUDIO_ENCODING_UNSPECIFIED" - Not specified. Will return result
	// google.rpc.Code.INVALID_ARGUMENT.
	//   "LINEAR16" - Uncompressed 16-bit signed little-endian samples
	// (Linear PCM). Audio content returned as LINEAR16 also contains a WAV
	// header.
	//   "MP3" - MP3 audio at 32kbps.
	//   "OGG_OPUS" - Opus encoded audio wrapped in an ogg container. The
	// result will be a file which can be played natively on Android, and in
	// browsers (at least Chrome and Firefox). The quality of the encoding
	// is considerably higher than MP3 while using approximately the same
	// bitrate.
	AudioEncoding string `json:"audioEncoding,omitempty"`

	// EffectsProfileId: Optional. Input only. An identifier which selects
	// 'audio effects' profiles that are applied on (post synthesized) text
	// to speech. Effects are applied on top of each other in the order they
	// are given. See audio profiles
	// (https://cloud.google.com/text-to-speech/docs/audio-profiles) for
	// current supported profile ids.
	EffectsProfileId []string `json:"effectsProfileId,omitempty"`

	// Pitch: Optional. Input only. Speaking pitch, in the range [-20.0,
	// 20.0]. 20 means increase 20 semitones from the original pitch. -20
	// means decrease 20 semitones from the original pitch.
	Pitch float64 `json:"pitch,omitempty"`

	// SampleRateHertz: Optional. The synthesis sample rate (in hertz) for
	// this audio. When this is specified in SynthesizeSpeechRequest, if
	// this is different from the voice's natural sample rate, then the
	// synthesizer will honor this request by converting to the desired
	// sample rate (which might result in worse audio quality), unless the
	// specified sample rate is not supported for the encoding chosen, in
	// which case it will fail the request and return
	// google.rpc.Code.INVALID_ARGUMENT.
	SampleRateHertz int64 `json:"sampleRateHertz,omitempty"`

	// SpeakingRate: Optional. Input only. Speaking rate/speed, in the range
	// [0.25, 4.0]. 1.0 is the normal native speed supported by the specific
	// voice. 2.0 is twice as fast, and 0.5 is half as fast. If unset(0.0),
	// defaults to the native 1.0 speed. Any other values < 0.25 or > 4.0
	// will return an error.
	SpeakingRate float64 `json:"speakingRate,omitempty"`

	// VolumeGainDb: Optional. Input only. Volume gain (in dB) of the normal
	// native volume supported by the specific voice, in the range [-96.0,
	// 16.0]. If unset, or set to a value of 0.0 (dB), will play at normal
	// native signal amplitude. A value of -6.0 (dB) will play at
	// approximately half the amplitude of the normal native signal
	// amplitude. A value of +6.0 (dB) will play at approximately twice the
	// amplitude of the normal native signal amplitude. Strongly recommend
	// not to exceed +10 (dB) as there's usually no effective increase in
	// loudness for any value greater than that.
	VolumeGainDb float64 `json:"volumeGainDb,omitempty"`

	// ForceSendFields is a list of field names (e.g. "AudioEncoding") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "AudioEncoding") to include
	// in API requests with the JSON null value. By default, fields with
	// empty values are omitted from API requests. However, any field with
	// an empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

AudioConfig: Description of audio data to be synthesized.

func (*AudioConfig) MarshalJSON 

func (s *AudioConfig) MarshalJSON() ([]byte, error)

func (*AudioConfig) UnmarshalJSON 

func (s *AudioConfig) UnmarshalJSON(data []byte) error

type ListVoicesResponse 

type ListVoicesResponse struct {
	// Voices: The list of voices.
	Voices []*Voice `json:"voices,omitempty"`

	// ServerResponse contains the HTTP response code and headers from the
	// server.
	googleapi.ServerResponse `json:"-"`

	// ForceSendFields is a list of field names (e.g. "Voices") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "Voices") to include in API
	// requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. However, any field with an
	// empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

ListVoicesResponse: The message returned to the client by the `ListVoices` method.

func (*ListVoicesResponse) MarshalJSON 

func (s *ListVoicesResponse) MarshalJSON() ([]byte, error)

type Service 

type Service struct {
	BasePath  string // API endpoint base URL
	UserAgent string // optional additional User-Agent fragment

	Text *TextService

	Voices *VoicesService
	// contains filtered or unexported fields
}

func New deprecated 

func New(client *http.Client) (*Service, error)

New creates a new Service. It uses the provided http.Client for requests.

Deprecated: please use NewService instead. To provide a custom HTTP client, use option.WithHTTPClient. If you are using google.golang.org/api/googleapis/transport.APIKey, use option.WithAPIKey with NewService instead.

func NewService added in v0.3.0 

func NewService(ctx context.Context, opts ...option.ClientOption) (*Service, error)

NewService creates a new Service.

type SynthesisInput 

type SynthesisInput struct {
	// Ssml: The SSML document to be synthesized. The SSML document must be
	// valid and well-formed. Otherwise the RPC will fail and return
	// google.rpc.Code.INVALID_ARGUMENT. For more information, see SSML
	// (https://cloud.google.com/text-to-speech/docs/ssml).
	Ssml string `json:"ssml,omitempty"`

	// Text: The raw text to be synthesized.
	Text string `json:"text,omitempty"`

	// ForceSendFields is a list of field names (e.g. "Ssml") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "Ssml") to include in API
	// requests with the JSON null value. By default, fields with empty
	// values are omitted from API requests. However, any field with an
	// empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

SynthesisInput: Contains text input to be synthesized. Either `text` or `ssml` must be supplied. Supplying both or neither returns google.rpc.Code.INVALID_ARGUMENT. The input size is limited to 5000 characters.

func (*SynthesisInput) MarshalJSON 

func (s *SynthesisInput) MarshalJSON() ([]byte, error)

type SynthesizeSpeechRequest 

type SynthesizeSpeechRequest struct {
	// AudioConfig: Required. The configuration of the synthesized audio.
	AudioConfig *AudioConfig `json:"audioConfig,omitempty"`

	// Input: Required. The Synthesizer requires either plain text or SSML
	// as input.
	Input *SynthesisInput `json:"input,omitempty"`

	// Voice: Required. The desired voice of the synthesized audio.
	Voice *VoiceSelectionParams `json:"voice,omitempty"`

	// ForceSendFields is a list of field names (e.g. "AudioConfig") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "AudioConfig") to include
	// in API requests with the JSON null value. By default, fields with
	// empty values are omitted from API requests. However, any field with
	// an empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

SynthesizeSpeechRequest: The top-level message sent by the client for the `SynthesizeSpeech` method.

func (*SynthesizeSpeechRequest) MarshalJSON 

func (s *SynthesizeSpeechRequest) MarshalJSON() ([]byte, error)

type SynthesizeSpeechResponse 

type SynthesizeSpeechResponse struct {
	// AudioContent: The audio data bytes encoded as specified in the
	// request, including the header for encodings that are wrapped in
	// containers (e.g. MP3, OGG_OPUS). For LINEAR16 audio, we include the
	// WAV header. Note: as with all bytes fields, protobuffers use a pure
	// binary representation, whereas JSON representations use base64.
	AudioContent string `json:"audioContent,omitempty"`

	// ServerResponse contains the HTTP response code and headers from the
	// server.
	googleapi.ServerResponse `json:"-"`

	// ForceSendFields is a list of field names (e.g. "AudioContent") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "AudioContent") to include
	// in API requests with the JSON null value. By default, fields with
	// empty values are omitted from API requests. However, any field with
	// an empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

SynthesizeSpeechResponse: The message returned to the client by the `SynthesizeSpeech` method.

func (*SynthesizeSpeechResponse) MarshalJSON 

func (s *SynthesizeSpeechResponse) MarshalJSON() ([]byte, error)

type TextService 

type TextService struct {
	// contains filtered or unexported fields
}

func NewTextService 

func NewTextService(s *Service) *TextService

func (*TextService) Synthesize 

func (r *TextService) Synthesize(synthesizespeechrequest *SynthesizeSpeechRequest) *TextSynthesizeCall

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

type TextSynthesizeCall 

type TextSynthesizeCall struct {
	// contains filtered or unexported fields
}

func (*TextSynthesizeCall) Context 

func (c *TextSynthesizeCall) Context(ctx context.Context) *TextSynthesizeCall

Context sets the context to be used in this call's Do method. Any pending HTTP request will be aborted if the provided context is canceled.

func (*TextSynthesizeCall) Do 

func (c *TextSynthesizeCall) Do(opts ...googleapi.CallOption) (*SynthesizeSpeechResponse, error)

Do executes the "texttospeech.text.synthesize" call. Exactly one of *SynthesizeSpeechResponse or error will be non-nil. Any non-2xx status code is an error. Response headers are in either *SynthesizeSpeechResponse.ServerResponse.Header or (if a response was returned at all) in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to check whether the returned error was because http.StatusNotModified was returned.

func (*TextSynthesizeCall) Fields 

func (c *TextSynthesizeCall) Fields(s ...googleapi.Field) *TextSynthesizeCall

Fields allows partial responses to be retrieved. See https://developers.google.com/gdata/docs/2.0/basics#PartialResponse for more information.

func (*TextSynthesizeCall) Header 

func (c *TextSynthesizeCall) Header() http.Header

Header returns an http.Header that can be modified by the caller to add HTTP headers to the request.

type Voice 

type Voice struct {
	// LanguageCodes: The languages that this voice supports, expressed as
	// BCP-47 (https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tags
	// (e.g. "en-US", "es-419", "cmn-tw").
	LanguageCodes []string `json:"languageCodes,omitempty"`

	// Name: The name of this voice. Each distinct voice has a unique name.
	Name string `json:"name,omitempty"`

	// NaturalSampleRateHertz: The natural sample rate (in hertz) for this
	// voice.
	NaturalSampleRateHertz int64 `json:"naturalSampleRateHertz,omitempty"`

	// SsmlGender: The gender of this voice.
	//
	// Possible values:
	//   "SSML_VOICE_GENDER_UNSPECIFIED" - An unspecified gender. In
	// VoiceSelectionParams, this means that the client doesn't care which
	// gender the selected voice will have. In the Voice field of
	// ListVoicesResponse, this may mean that the voice doesn't fit any of
	// the other categories in this enum, or that the gender of the voice
	// isn't known.
	//   "MALE" - A male voice.
	//   "FEMALE" - A female voice.
	//   "NEUTRAL" - A gender-neutral voice. This voice is not yet
	// supported.
	SsmlGender string `json:"ssmlGender,omitempty"`

	// ForceSendFields is a list of field names (e.g. "LanguageCodes") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "LanguageCodes") to include
	// in API requests with the JSON null value. By default, fields with
	// empty values are omitted from API requests. However, any field with
	// an empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

Voice: Description of a voice supported by the TTS service.

func (*Voice) MarshalJSON 

func (s *Voice) MarshalJSON() ([]byte, error)

type VoiceSelectionParams 

type VoiceSelectionParams struct {
	// LanguageCode: Required. 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)".
	LanguageCode string `json:"languageCode,omitempty"`

	// Name: The name of the voice. If not set, the service will choose a
	// voice based on the other parameters such as language_code and gender.
	Name string `json:"name,omitempty"`

	// SsmlGender: The preferred gender of the voice. If not set, the
	// service will choose a voice based on the other parameters such as
	// language_code and name. Note that this is only a preference, not
	// requirement; if a voice of the appropriate gender is not available,
	// the synthesizer should substitute a voice with a different gender
	// rather than failing the request.
	//
	// Possible values:
	//   "SSML_VOICE_GENDER_UNSPECIFIED" - An unspecified gender. In
	// VoiceSelectionParams, this means that the client doesn't care which
	// gender the selected voice will have. In the Voice field of
	// ListVoicesResponse, this may mean that the voice doesn't fit any of
	// the other categories in this enum, or that the gender of the voice
	// isn't known.
	//   "MALE" - A male voice.
	//   "FEMALE" - A female voice.
	//   "NEUTRAL" - A gender-neutral voice. This voice is not yet
	// supported.
	SsmlGender string `json:"ssmlGender,omitempty"`

	// ForceSendFields is a list of field names (e.g. "LanguageCode") to
	// unconditionally include in API requests. By default, fields with
	// empty values are omitted from API requests. However, any non-pointer,
	// non-interface field appearing in ForceSendFields will be sent to the
	// server regardless of whether the field is empty or not. This may be
	// used to include empty fields in Patch requests.
	ForceSendFields []string `json:"-"`

	// NullFields is a list of field names (e.g. "LanguageCode") to include
	// in API requests with the JSON null value. By default, fields with
	// empty values are omitted from API requests. However, any field with
	// an empty value appearing in NullFields will be sent to the server as
	// null. It is an error if a field in this list has a non-empty value.
	// This may be used to include null fields in Patch requests.
	NullFields []string `json:"-"`
}

VoiceSelectionParams: Description of which voice to use for a synthesis request.

func (*VoiceSelectionParams) MarshalJSON 

func (s *VoiceSelectionParams) MarshalJSON() ([]byte, error)

type VoicesListCall 

type VoicesListCall struct {
	// contains filtered or unexported fields
}

func (*VoicesListCall) Context 

func (c *VoicesListCall) Context(ctx context.Context) *VoicesListCall

Context sets the context to be used in this call's Do method. Any pending HTTP request will be aborted if the provided context is canceled.

func (*VoicesListCall) Do 

func (c *VoicesListCall) Do(opts ...googleapi.CallOption) (*ListVoicesResponse, error)

Do executes the "texttospeech.voices.list" call. Exactly one of *ListVoicesResponse or error will be non-nil. Any non-2xx status code is an error. Response headers are in either *ListVoicesResponse.ServerResponse.Header or (if a response was returned at all) in error.(*googleapi.Error).Header. Use googleapi.IsNotModified to check whether the returned error was because http.StatusNotModified was returned.

func (*VoicesListCall) Fields 

func (c *VoicesListCall) Fields(s ...googleapi.Field) *VoicesListCall

Fields allows partial responses to be retrieved. See https://developers.google.com/gdata/docs/2.0/basics#PartialResponse for more information.

func (*VoicesListCall) Header 

func (c *VoicesListCall) Header() http.Header

Header returns an http.Header that can be modified by the caller to add HTTP headers to the request.

func (*VoicesListCall) IfNoneMatch 

func (c *VoicesListCall) IfNoneMatch(entityTag string) *VoicesListCall

IfNoneMatch sets the optional parameter which makes the operation fail if the object's ETag matches the given value. This is useful for getting updates only after the object has changed since the last request. Use googleapi.IsNotModified to check whether the response error from Do is the result of In-None-Match.

func (*VoicesListCall) LanguageCode 

func (c *VoicesListCall) LanguageCode(languageCode string) *VoicesListCall

LanguageCode sets the optional parameter "languageCode": Recommended. BCP-47 (https://www.rfc-editor.org/rfc/bcp/bcp47.txt) language tag. If specified, the ListVoices call will only return voices that can be used to synthesize this language_code. E.g. when specifying "en-NZ", you will get supported "en-\*" voices; when specifying "no", you will get supported "no-\*" (Norwegian) and "nb-\*" (Norwegian Bokmal) voices; specifying "zh" will also get supported "cmn-\*" voices; specifying "zh-hk" will also get supported "yue-\*" voices.

type VoicesService 

type VoicesService struct {
	// contains filtered or unexported fields
}

func NewVoicesService 

func NewVoicesService(s *Service) *VoicesService

func (*VoicesService) List 

func (r *VoicesService) List() *VoicesListCall

List: Returns a list of Voice supported for synthesis.

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