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RecognizeSpeech.java
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RecognizeSpeech.java
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/*
* Copyright 2017 Google LLC
*
* 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.
*/
/*
* EDITING INSTRUCTIONS
* This file is referenced in READMEs. Any change to this file should be reflected in
* the project's READMEs.
*/
package com.google.cloud.examples.speech.snippets;
import com.google.cloud.speech.v1.RecognitionAudio;
import com.google.cloud.speech.v1.RecognitionConfig;
import com.google.cloud.speech.v1.RecognitionConfig.AudioEncoding;
import com.google.cloud.speech.v1.RecognizeResponse;
import com.google.cloud.speech.v1.SpeechClient;
import com.google.cloud.speech.v1.SpeechRecognitionAlternative;
import com.google.cloud.speech.v1.SpeechRecognitionResult;
import com.google.protobuf.ByteString;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;
/**
* A snippet for Google Natural Language API showing how to convert houman speech from an audio file
* into a text form.
*/
public class RecognizeSpeech {
public static void main(String... args) throws Exception {
// Instantiates a client
SpeechClient speech = SpeechClient.create();
// The path to the audio file to transcribe
String fileName = "your/speech/audio/file.raw"; // for example "./resources/audio.raw";
// Reads the audio file into memory
Path path = Paths.get(fileName);
byte[] data = Files.readAllBytes(path);
ByteString audioBytes = ByteString.copyFrom(data);
// Builds the sync recognize request
RecognitionConfig config =
RecognitionConfig.newBuilder()
.setEncoding(AudioEncoding.LINEAR16)
.setSampleRateHertz(16000)
.setLanguageCode("en-US")
.build();
RecognitionAudio audio = RecognitionAudio.newBuilder().setContent(audioBytes).build();
// Performs speech recognition on the audio file
RecognizeResponse response = speech.recognize(config, audio);
List<SpeechRecognitionResult> results = response.getResultsList();
for (SpeechRecognitionResult result : results) {
List<SpeechRecognitionAlternative> alternatives = result.getAlternativesList();
for (SpeechRecognitionAlternative alternative : alternatives) {
System.out.printf("Transcription: %s%n", alternative.getTranscript());
}
}
speech.close();
}
}