用java采用百度语音识别api 写一个实时语音转文字的demo
时间: 2024-03-16 20:41:35 浏览: 239
好的,以下是用Java编写的百度语音识别API实时语音转文字的demo:
首先,需要在百度AI开放平台创建一个应用并获取API Key和Secret Key。
然后,使用Java SDK中的BaiduPCS类进行OAuth2.0授权,并获取Access Token。
接下来,使用Java SDK中的BaiduVoice类进行语音识别。具体步骤如下:
1. 创建一个AudioFormat对象,指定音频格式和采样率:
```
AudioFormat format = new AudioFormat(16000, 16, 1, true, false);
```
2. 创建一个TargetDataLine对象,用于从麦克风录制音频数据:
```
TargetDataLine line;
DataLine.Info info = new DataLine.Info(TargetDataLine.class, format);
if (!AudioSystem.isLineSupported(info)) {
System.out.println("Line not supported");
System.exit(0);
}
line = (TargetDataLine) AudioSystem.getLine(info);
line.open(format);
line.start();
```
3. 使用百度语音识别API进行实时语音转文字,并输出结果:
```
BaiduVoice baiduVoice = new BaiduVoice(apiKey, secretKey);
InputStream audio = new AudioInputStream(line);
baiduVoice.recognize(audio, new BaiduVoiceListener() {
@Override
public void onSpeechRecognized(String result) {
System.out.println(result);
}
@Override
public void onError(String error) {
System.out.println(error);
}
});
```
完整代码如下:
```
import com.baidu.aip.speech.AipSpeech;
import com.baidu.aip.speech.TtsResponse;
import com.baidu.aip.util.Util;
import com.baidu.pcs.BaiduPCS;
import com.baidu.pcs.exception.PcsException;
import com.baidu.pcshttp.PcsHttpClient;
import com.baidu.pcshttp.PcsHttpResp;
import com.baidu.pcshttp.PcsRequest;
import com.baidu.pcshttp.PcsResponseHandler;
import com.baidu.pcshttp.PcsUploadProgressListener;
import com.baidu.pcshttp.PcsWebApi;
import com.baidu.pcshttp.PcsWebApiException;
import com.baidu.voicerecognition.android.BaiduVoice;
import com.baidu.voicerecognition.android.BaiduVoiceListener;
import com.baidu.voicerecognition.android.ui.BaiduASRDigitalDialog;
import com.baidu.voicerecognition.android.ui.DialogRecognitionListener;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.TargetDataLine;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
public class BaiduVoiceRecognitionDemo {
// 百度AI开放平台应用的API Key和Secret Key
private static final String apiKey = "YOUR_API_KEY";
private static final String secretKey = "YOUR_SECRET_KEY";
public static void main(String[] args) {
// OAuth2.0授权,获取Access Token
BaiduPCS pcs = new BaiduPCS(apiKey, secretKey);
try {
pcs.auth();
} catch (PcsException e) {
e.printStackTrace();
}
String accessToken = pcs.getAccessToken();
// 创建一个AudioFormat对象,指定音频格式和采样率
AudioFormat format = new AudioFormat(16000, 16, 1, true, false);
// 创建一个TargetDataLine对象,用于从麦克风录制音频数据
TargetDataLine line;
DataLine.Info info = new DataLine.Info(TargetDataLine.class, format);
if (!AudioSystem.isLineSupported(info)) {
System.out.println("Line not supported");
System.exit(0);
}
try {
line = (TargetDataLine) AudioSystem.getLine(info);
line.open(format);
line.start();
} catch (Exception e) {
e.printStackTrace();
return;
}
// 使用百度语音识别API进行实时语音转文字,并输出结果
BaiduVoice baiduVoice = new BaiduVoice(apiKey, secretKey);
InputStream audio = new AudioInputStream(line);
baiduVoice.recognize(audio, new BaiduVoiceListener() {
@Override
public void onSpeechRecognized(String result) {
System.out.println(result);
}
@Override
public void onError(String error) {
System.out.println(error);
}
});
}
}
```
注意:该demo仅供参考,请根据自己的实际情况进行修改和优化。
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