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website/functions/node_modules/google-proto-files/google/cloud/texttospeech/v1/cloud_tts.proto

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+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.texttospeech.v1;
+
+import "google/api/annotations.proto";
+
+option cc_enable_arenas = true;
+option csharp_namespace = "Google.Cloud.TextToSpeech.V1";
+option go_package = "google.golang.org/genproto/googleapis/cloud/texttospeech/v1;texttospeech";
+option java_multiple_files = true;
+option java_outer_classname = "TextToSpeechProto";
+option java_package = "com.google.cloud.texttospeech.v1";
+option php_namespace = "Google\\Cloud\\TextToSpeech\\V1";
+
+
+// Service that implements Google Cloud Text-to-Speech API.
+service TextToSpeech {
+  // Returns a list of [Voice][google.cloud.texttospeech.v1.Voice]
+  // supported for synthesis.
+  rpc ListVoices(ListVoicesRequest) returns (ListVoicesResponse) {
+    option (google.api.http) = {
+      get: "/v1/voices"
+    };
+  }
+
+  // Synthesizes speech synchronously: receive results after all text input
+  // has been processed.
+  rpc SynthesizeSpeech(SynthesizeSpeechRequest) returns (SynthesizeSpeechResponse) {
+    option (google.api.http) = {
+      post: "/v1/text:synthesize"
+      body: "*"
+    };
+  }
+}
+
+// The top-level message sent by the client for the `ListVoices` method.
+message ListVoicesRequest {
+  // Optional (but 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.
+  string language_code = 1;
+}
+
+// The message returned to the client by the `ListVoices` method.
+message ListVoicesResponse {
+  // The list of voices.
+  repeated Voice voices = 1;
+}
+
+// Description of a voice supported by the TTS service.
+message Voice {
+  // 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").
+  repeated string language_codes = 1;
+
+  // The name of this voice.  Each distinct voice has a unique name.
+  string name = 2;
+
+  // The gender of this voice.
+  SsmlVoiceGender ssml_gender = 3;
+
+  // The natural sample rate (in hertz) for this voice.
+  int32 natural_sample_rate_hertz = 4;
+}
+
+// The top-level message sent by the client for the `SynthesizeSpeech` method.
+message SynthesizeSpeechRequest {
+  // Required. The Synthesizer requires either plain text or SSML as input.
+  SynthesisInput input = 1;
+
+  // Required. The desired voice of the synthesized audio.
+  VoiceSelectionParams voice = 2;
+
+  // Required. The configuration of the synthesized audio.
+  AudioConfig audio_config = 3;
+}
+
+// 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.
+message SynthesisInput {
+  // The input source, which is either plain text or SSML.
+  oneof input_source {
+    // The raw text to be synthesized.
+    string text = 1;
+
+    // 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](/speech/text-to-speech/docs/ssml).
+    string ssml = 2;
+  }
+}
+
+// Description of which voice to use for a synthesis request.
+message VoiceSelectionParams {
+  // The language (and optionally 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". Required. 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)".
+  string language_code = 1;
+
+  // The name of the voice. Optional; if not set, the service will choose a
+  // voice based on the other parameters such as language_code and gender.
+  string name = 2;
+
+  // The preferred gender of the voice. Optional; 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.
+  SsmlVoiceGender ssml_gender = 3;
+}
+
+// Description of audio data to be synthesized.
+message AudioConfig {
+  // Required. The format of the requested audio byte stream.
+  AudioEncoding audio_encoding = 1;
+
+  // Optional 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.
+  double speaking_rate = 2;
+
+  // Optional 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.
+  double pitch = 3;
+
+  // Optional 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.
+  double volume_gain_db = 4;
+
+  // The synthesis sample rate (in hertz) for this audio. Optional.  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][].
+  int32 sample_rate_hertz = 5;
+}
+
+// The message returned to the client by the `SynthesizeSpeech` method.
+message SynthesizeSpeechResponse {
+  // The audio data bytes encoded as specified in the request, including the
+  // header (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.
+  bytes audio_content = 1;
+}
+
+// Gender of the voice as described in
+// [SSML voice element](https://www.w3.org/TR/speech-synthesis11/#edef_voice).
+enum SsmlVoiceGender {
+  // 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.
+  SSML_VOICE_GENDER_UNSPECIFIED = 0;
+
+  // A male voice.
+  MALE = 1;
+
+  // A female voice.
+  FEMALE = 2;
+
+  // A gender-neutral voice.
+  NEUTRAL = 3;
+}
+
+// Configuration to set up audio encoder. The encoding determines the output
+// audio format that we'd like.
+enum AudioEncoding {
+  // Not specified. Will return result [google.rpc.Code.INVALID_ARGUMENT][].
+  AUDIO_ENCODING_UNSPECIFIED = 0;
+
+  // Uncompressed 16-bit signed little-endian samples (Linear PCM).
+  // Audio content returned as LINEAR16 also contains a WAV header.
+  LINEAR16 = 1;
+
+  // MP3 audio.
+  MP3 = 2;
+
+  // 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.
+  OGG_OPUS = 3;
+}

website/functions/node_modules/google-proto-files/google/cloud/texttospeech/v1beta1/cloud_tts.proto

@@ -0,0 +1,228 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.texttospeech.v1beta1;
+
+import "google/api/annotations.proto";
+
+option cc_enable_arenas = true;
+option go_package = "google.golang.org/genproto/googleapis/cloud/texttospeech/v1beta1;texttospeech";
+option java_multiple_files = true;
+option java_outer_classname = "TextToSpeechProto";
+option java_package = "com.google.cloud.texttospeech.v1beta1";
+
+
+// Service that implements Google Cloud Text-to-Speech API.
+service TextToSpeech {
+  // Returns a list of [Voice][google.cloud.texttospeech.v1beta1.Voice]
+  // supported for synthesis.
+  rpc ListVoices(ListVoicesRequest) returns (ListVoicesResponse) {
+    option (google.api.http) = {
+      get: "/v1beta1/voices"
+    };
+  }
+
+  // Synthesizes speech synchronously: receive results after all text input
+  // has been processed.
+  rpc SynthesizeSpeech(SynthesizeSpeechRequest) returns (SynthesizeSpeechResponse) {
+    option (google.api.http) = {
+      post: "/v1beta1/text:synthesize"
+      body: "*"
+    };
+  }
+}
+
+// The top-level message sent by the client for the `ListVoices` method.
+message ListVoicesRequest {
+  // Optional (but 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.
+  string language_code = 1;
+}
+
+// The message returned to the client by the `ListVoices` method.
+message ListVoicesResponse {
+  // The list of voices.
+  repeated Voice voices = 1;
+}
+
+// Description of a voice supported by the TTS service.
+message Voice {
+  // 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").
+  repeated string language_codes = 1;
+
+  // The name of this voice.  Each distinct voice has a unique name.
+  string name = 2;
+
+  // The gender of this voice.
+  SsmlVoiceGender ssml_gender = 3;
+
+  // The natural sample rate (in hertz) for this voice.
+  int32 natural_sample_rate_hertz = 4;
+}
+
+// The top-level message sent by the client for the `SynthesizeSpeech` method.
+message SynthesizeSpeechRequest {
+  // Required. The Synthesizer requires either plain text or SSML as input.
+  SynthesisInput input = 1;
+
+  // Required. The desired voice of the synthesized audio.
+  VoiceSelectionParams voice = 2;
+
+  // Required. The configuration of the synthesized audio.
+  AudioConfig audio_config = 3;
+}
+
+// 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.
+message SynthesisInput {
+  // The input source, which is either plain text or SSML.
+  oneof input_source {
+    // The raw text to be synthesized.
+    string text = 1;
+
+    // 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](/speech/text-to-speech/docs/ssml).
+    string ssml = 2;
+  }
+}
+
+// Description of which voice to use for a synthesis request.
+message VoiceSelectionParams {
+  // The language (and optionally 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". Required. 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)".
+  string language_code = 1;
+
+  // The name of the voice. Optional; if not set, the service will choose a
+  // voice based on the other parameters such as language_code and gender.
+  string name = 2;
+
+  // The preferred gender of the voice. Optional; 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.
+  SsmlVoiceGender ssml_gender = 3;
+}
+
+// Description of audio data to be synthesized.
+message AudioConfig {
+  // Required. The format of the requested audio byte stream.
+  AudioEncoding audio_encoding = 1;
+
+  // Optional 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.
+  double speaking_rate = 2;
+
+  // Optional 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.
+  double pitch = 3;
+
+  // Optional 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.
+  double volume_gain_db = 4;
+
+  // The synthesis sample rate (in hertz) for this audio. Optional.  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][].
+  int32 sample_rate_hertz = 5;
+
+  // 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.
+  repeated string effects_profile_id = 6;
+}
+
+// The message returned to the client by the `SynthesizeSpeech` method.
+message SynthesizeSpeechResponse {
+  // The audio data bytes encoded as specified in the request, including the
+  // header (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.
+  bytes audio_content = 1;
+}
+
+// Gender of the voice as described in
+// [SSML voice element](https://www.w3.org/TR/speech-synthesis11/#edef_voice).
+enum SsmlVoiceGender {
+  // 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.
+  SSML_VOICE_GENDER_UNSPECIFIED = 0;
+
+  // A male voice.
+  MALE = 1;
+
+  // A female voice.
+  FEMALE = 2;
+
+  // A gender-neutral voice.
+  NEUTRAL = 3;
+}
+
+// Configuration to set up audio encoder. The encoding determines the output
+// audio format that we'd like.
+enum AudioEncoding {
+  // Not specified. Will return result [google.rpc.Code.INVALID_ARGUMENT][].
+  AUDIO_ENCODING_UNSPECIFIED = 0;
+
+  // Uncompressed 16-bit signed little-endian samples (Linear PCM).
+  // Audio content returned as LINEAR16 also contains a WAV header.
+  LINEAR16 = 1;
+
+  // MP3 audio.
+  MP3 = 2;
+
+  // 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.
+  OGG_OPUS = 3;
+}