Using Google Cloud Text-to-Speech With Java

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Google Cloud Text-to-Speech is a text-to-speech conversion service that got launched a few days back by Google Cloud. This was one of the most important services missing from Google Cloud's AI portfolio, which is now available and completes the loop for text-to-speech and speech-to-text services by Google Cloud. In the next few weeks, you will learn about different usages of Google Cloud's text-to-speech service with other Google cloud services.

In this post, you will learn about some of the following:

Set Up an Eclipse IDE-Based Development Environment

The following are some of the key aspects of setting up the development environment using Eclipse IDE:

Create a Maven or Spring Boot (Spring Starter) Project

The following are two key steps that need to be taken to create a sample program/app for demonstrating Google Cloud text-to-speech services

Include Maven POM.xml Artifacts for Text-to-Speech APIs

The following are some of the artifacts that need to be included for working with Google Cloud Text-to-speech APIs

<!-- https://mvnrepository.com/artifact/com.google.guava/guava -->
<dependency>
    <groupId>com.google.guava</groupId>
    <artifactId>guava</artifactId>
    <version>24.1-jre</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.threeten/threetenbp -->
<dependency>
    <groupId>org.threeten</groupId>
    <artifactId>threetenbp</artifactId>
    <version>1.3.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.http-client/google-http-client -->
<dependency>
    <groupId>com.google.http-client</groupId>
    <artifactId>google-http-client</artifactId>
    <version>1.22.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.google.cloud/google-cloud-texttospeech -->
<dependency>
    <groupId>com.google.cloud</groupId>
    <artifactId>google-cloud-texttospeech</artifactId>
    <version>0.42.0-beta</version>
</dependency>


Create the Demo App Related to Text-to-Speech Conversion

Pay attention to some of the following aspects that needed to be done for achieving text-to-speech conversion:

The following is the code represents the steps above:

@SpringBootApplication
public class GCloudText2SpeechApplication implements CommandLineRunner {
 
    public static void main(String[] args) {
        SpringApplication app = new SpringApplication(GCloudText2SpeechApplication.class);
        app.run(args);
    }
 
    @Override
    public void run(String... arg0) throws Exception {
 
        String text = "Hello World! How are you doing today? This is Google Cloud Text-to-Speech Demo!";
        String outputAudioFilePath = "/home/support/Documents/output.mp3";
 
        try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
            // Set the text input to be synthesized
            SynthesisInput input = SynthesisInput.newBuilder().setText(text).build();
 
            // Build the voice request; languageCode = "en_us"
            VoiceSelectionParams voice = VoiceSelectionParams.newBuilder().setLanguageCode("en-US")
                    .setSsmlGender(SsmlVoiceGender.FEMALE)
                    .build();
 
            // Select the type of audio file you want returned
            AudioConfig audioConfig = AudioConfig.newBuilder().setAudioEncoding(AudioEncoding.MP3) // MP3 audio.
                    .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(outputAudioFilePath)) {
                out.write(audioContents.toByteArray());
                System.out.println("Audio content written to file \"output.mp3\"");
            }
        }
    }
}


Further Reading/References

Summary

In this post, you learned about how to get started with Google Cloud's Text-to-Speech Service using a Java/Sring Boot app.

Did you find this article useful? Do you have any questions or suggestions about this article? Leave a comment and ask your questions and I shall do my best to address your queries.

 

 

 

 

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