Sintetiza texto con perfiles de audio

Sintetiza texto y especifica un perfil de audio para optimizar la voz sintética de la reproducción en diferentes tipos de hardware.

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Para obtener documentación detallada en la que se incluya esta muestra de código, consulta el siguiente enlace:

Usa perfiles de dispositivos para el audio generado

Muestra de código

Go

Para aprender cómo instalar y usar la biblioteca cliente para Text-to-Speech, consulta las bibliotecas cliente de Text-to-Speech. Para obtener más información, consulta la documentación de referencia de la API de Go de Text-to-Speech.

Para autenticarte en Text-to-Speech, configura las credenciales predeterminadas de la aplicación. Para obtener más información, consulta Configura la autenticación para un entorno de desarrollo local.


import (
	"fmt"
	"io"
	"os"

	"context"

	texttospeech "cloud.google.com/go/texttospeech/apiv1"
	"cloud.google.com/go/texttospeech/apiv1/texttospeechpb"
)

// audioProfile generates audio from text using a custom synthesizer like a telephone call.
func audioProfile(w io.Writer, text string, outputFile string) error {
	// text := "hello"
	// outputFile := "out.mp3"

	ctx := context.Background()

	client, err := texttospeech.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("NewClient: %w", err)
	}
	defer client.Close()

	req := &texttospeechpb.SynthesizeSpeechRequest{
		Input: &texttospeechpb.SynthesisInput{
			InputSource: &texttospeechpb.SynthesisInput_Text{Text: text},
		},
		Voice: &texttospeechpb.VoiceSelectionParams{LanguageCode: "en-US"},
		AudioConfig: &texttospeechpb.AudioConfig{
			AudioEncoding:    texttospeechpb.AudioEncoding_MP3,
			EffectsProfileId: []string{"telephony-class-application"},
		},
	}

	resp, err := client.SynthesizeSpeech(ctx, req)
	if err != nil {
		return fmt.Errorf("SynthesizeSpeech: %w", err)
	}

	if err = os.WriteFile(outputFile, resp.AudioContent, 0644); err != nil {
		return err
	}

	fmt.Fprintf(w, "Audio content written to file: %v\n", outputFile)

	return nil
}

Java

/**
 * Demonstrates using the Text to Speech client with audio profiles to synthesize text or ssml
 *
 * @param text the raw text to be synthesized. (e.g., "Hello there!")
 * @param effectsProfile audio profile to be used for synthesis. (e.g.,
 *     "telephony-class-application")
 * @throws Exception on TextToSpeechClient Errors.
 */
public static ByteString synthesizeTextWithAudioProfile(String text, String effectsProfile)
    throws Exception {
  // Instantiates a client
  try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
    // Set the text input to be synthesized
    SynthesisInput input = SynthesisInput.newBuilder().setText(text).build();

    // Build the voice request
    VoiceSelectionParams voice =
        VoiceSelectionParams.newBuilder()
            .setLanguageCode("en-US") // languageCode = "en_us"
            .setSsmlGender(SsmlVoiceGender.FEMALE) // ssmlVoiceGender = SsmlVoiceGender.FEMALE
            .build();

    // Select the type of audio file you want returned and the audio profile
    AudioConfig audioConfig =
        AudioConfig.newBuilder()
            .setAudioEncoding(AudioEncoding.MP3) // MP3 audio.
            .addEffectsProfileId(effectsProfile) // audio profile
            .build();

    // Perform the text-to-speech request
    SynthesizeSpeechResponse response =
        textToSpeechClient.synthesizeSpeech(input, voice, audioConfig);

    // Get the audio contents from the response
    ByteString audioContents = response.getAudioContent();

    // Write the response to the output file.
    try (OutputStream out = new FileOutputStream("output.mp3")) {
      out.write(audioContents.toByteArray());
      System.out.println("Audio content written to file \"output.mp3\"");
      return audioContents;
    }
  }
}

Node.js


/**
 * TODO(developer): Uncomment these variables before running the sample.
 */
// const text = 'Text you want to vocalize';
// const outputFile = 'YOUR_OUTPUT_FILE_LOCAtION;
// const languageCode = 'LANGUAGE_CODE_FOR_OUTPUT';
// const ssmlGender = 'SSML_GENDER_OF_SPEAKER';

// Imports the Google Cloud client library
const speech = require('@google-cloud/text-to-speech');
const fs = require('fs');
const util = require('util');

// Creates a client
const client = new speech.TextToSpeechClient();

async function synthesizeWithEffectsProfile() {
  // Add one or more effects profiles to array.
  // Refer to documentation for more details:
  // https://cloud.google.com/text-to-speech/docs/audio-profiles
  const effectsProfileId = ['telephony-class-application'];

  const request = {
    input: {text: text},
    voice: {languageCode: languageCode, ssmlGender: ssmlGender},
    audioConfig: {audioEncoding: 'MP3', effectsProfileId: effectsProfileId},
  };

  const [response] = await client.synthesizeSpeech(request);
  const writeFile = util.promisify(fs.writeFile);
  await writeFile(outputFile, response.audioContent, 'binary');
  console.log(`Audio content written to file: ${outputFile}`);
}

PHP

Para aprender cómo instalar y usar la biblioteca cliente para Text-to-Speech, consulta las bibliotecas cliente de Text-to-Speech.

use Google\Cloud\TextToSpeech\V1\AudioConfig;
use Google\Cloud\TextToSpeech\V1\AudioEncoding;
use Google\Cloud\TextToSpeech\V1\Client\TextToSpeechClient;
use Google\Cloud\TextToSpeech\V1\SsmlVoiceGender;
use Google\Cloud\TextToSpeech\V1\SynthesisInput;
use Google\Cloud\TextToSpeech\V1\SynthesizeSpeechRequest;
use Google\Cloud\TextToSpeech\V1\VoiceSelectionParams;

/**
 * @param string $text Text to synthesize
 * @param string $effectsProfileId Audio Profile ID
 */
function synthesize_text_effects_profile(string $text, string $effectsProfileId): void
{
    // create client object
    $client = new TextToSpeechClient();

    $inputText = (new SynthesisInput())
        ->setText($text);

    // note: the voice can also be specified by name
    // names of voices can be retrieved with $client->listVoices()
    $voice = (new VoiceSelectionParams())
        ->setLanguageCode('en-US')
        ->setSsmlGender(SsmlVoiceGender::FEMALE);

    // define effects profile id.
    $audioConfig = (new AudioConfig())
        ->setAudioEncoding(AudioEncoding::MP3)
        ->setEffectsProfileId(array($effectsProfileId));
    $request = (new SynthesizeSpeechRequest())
        ->setInput($inputText)
        ->setVoice($voice)
        ->setAudioConfig($audioConfig);

    $response = $client->synthesizeSpeech($request);
    $audioContent = $response->getAudioContent();

    file_put_contents('output.mp3', $audioContent);
    print('Audio content written to "output.mp3"' . PHP_EOL);

    $client->close();
}

Python

def synthesize_text_with_audio_profile():
    """Synthesizes speech from the input string of text."""
    from google.cloud import texttospeech

    text = "hello"
    output = "output.mp3"
    effects_profile_id = "telephony-class-application"
    client = texttospeech.TextToSpeechClient()

    input_text = texttospeech.SynthesisInput(text=text)

    # Note: the voice can also be specified by name.
    # Names of voices can be retrieved with client.list_voices().
    voice = texttospeech.VoiceSelectionParams(language_code="en-US")

    # Note: you can pass in multiple effects_profile_id. They will be applied
    # in the same order they are provided.
    audio_config = texttospeech.AudioConfig(
        audio_encoding=texttospeech.AudioEncoding.MP3,
        effects_profile_id=[effects_profile_id],
    )

    response = client.synthesize_speech(
        input=input_text, voice=voice, audio_config=audio_config
    )

    # The response's audio_content is binary.
    with open(output, "wb") as out:
        out.write(response.audio_content)
        print('Audio content written to file "%s"' % output)

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