java实现音频转文本的实现步骤

import com.google.cloud.speech.v1.RecognitionConfig;
import com.google.cloud.speech.v1.SpeechClient;
import com.google.cloud.speech.v1.SpeechRecognitionAlternative;
import com.google.cloud.speech.v1.WordInfo;

public class SpeechToTextExample {
    public static void main(String... args) throws Exception {
        // Instantiates a client
        try (SpeechClient speechClient = SpeechClient.create()) {
            // The path to the local audio file.
            String audioFilePath = "path_to_your_audio_file.wav";

            // Builds the sync recognize request.
            RecognitionConfig config =
                    RecognitionConfig.newBuilder()
                            .setEncoding(RecognitionConfig.AudioEncoding.LINEAR16)
                            .setSampleRateHertz(16000)
                            .setLanguageCode("en-US")
                            .build();
            
            // Reads the audio file into memory.
            RecognitionAudio audio = RecognitionAudio.newBuilder()
                .setContent(com.google.cloud.speech.v1.RecognitionAudio.newBuilder()
                .setContent(com.google.cloud.storage.BlobInfo.newBuilder(
                        ("gs://" + BUCKET_NAME + "/" + audioFilePath)).build().getContent()))
                .build();

            // Detects speech in the audio file.
            SpeechRecognitionResult result = speechClient.recognize(config, audio);

            // Prints out the results.
            System.out.println("Transcription: ");
            for (SpeechRecognitionAlternative alternative : result.getResultsList()) {
                System.out.printf("%s%n", alternative.getTranscript());
            }
        }
    }
}