import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.ByteBuffffer;
import com.alibaba.nls.client.AccessToken;
import com.alibaba.nls.client.protocol.NlsClient;
import com.alibaba.nls.client.protocol.OutputFormatEnum;
import com.alibaba.nls.client.protocol.SampleRateEnum;
import com.alibaba.nls.client.protocol.tts.SpeechSynthesizer;
import com.alibaba.nls.client.protocol.tts.SpeechSynthesizerListener;
import com.alibaba.nls.client.protocol.tts.SpeechSynthesizerResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* 此示例演示了：
* 语音合成API调用。
* 动态获取token。
* 流式合成TTS。
* 首包延迟计算。
*/
public class SpeechSynthesizerDemo {
private static fifinal Logger logger = LoggerFactory.getLogger(SpeechSynthesizerDemo.class);
private static long startTime;
private String appKey;
NlsClient client;
public SpeechSynthesizerDemo(String appKey, String accessKeyId, String accessKeySecret) {
this.appKey = appKey;
private static SpeechSynthesizerListener getSynthesizerListener() {
SpeechSynthesizerListener listener = null;
try {
listener = new SpeechSynthesizerListener() {
File f=new File("tts_test.wav");
FileOutputStream fout = new FileOutputStream(f);
private boolean fifirstRecvBinary = true;
//语音合成结束
@Override
public void onComplete(SpeechSynthesizerResponse response) {
//调用onComplete时表示所有TTS数据已接收完成，因此为整个合成数据的延迟。该延迟可能较大，不一定满足实
时场景。
System.out.println("name: " + response.getName() +
", status: " + response.getStatus()+
", output fifile :"+f.getAbsolutePath()
);
}
//语音合成的语音二进制数据
@Override
public void onMessage(ByteBuffffer message) {
try {
if(fifirstRecvBinary) {
//计算首包语音流的延迟，收到第一包语音流时，即可以进行语音播放，以提升响应速度（特别是实时交互场
景下）。
fifirstRecvBinary = false;
long now = System.currentTimeMillis();
logger.info("tts fifirst latency : " + (now - SpeechSynthesizerDemo.startTime) + " ms");
}
byte[] bytesArray = new byte[message.remaining()];
message.get(bytesArray, 0, bytesArray.length);
fout.write(bytesArray);
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void onFail(SpeechSynthesizerResponse response){
//task_id是调用方和服务端通信的唯一标识，当遇到问题时需要提供task_id以便排查。
System.out.println(
"task_id: " + response.getTaskId() +
//状态码 20000000 表示识别成功
", status: " + response.getStatus() +
//错误信息
", status_text: " + response.getStatusText());
}
};
} catch (Exception e) {
e.printStackTrace();
}
return listener;
}
public void process() {
SpeechSynthesizer synthesizer = null;
try {
//创建实例，建立连接。
synthesizer = new SpeechSynthesizer(client, getSynthesizerListener());
synthesizer.setAppKey(appKey);
//设置返回音频的编码格式
synthesizer.setFormat(OutputFormatEnum.WAV);
//设置返回音频的采样率
synthesizer.setSampleRate(SampleRateEnum.SAMPLE_RATE_16K);
//发音人
synthesizer.setVoice("siyue");
//语调，范围是-500~500，可选，默认是0。
synthesizer.setPitchRate(100);
//语速，范围是-500~500，默认是0。
synthesizer.setSpeechRate(100);
//设置用于语音合成的文本
synthesizer.setText("欢迎使用阿里巴巴智能语音合成服务，您可以说北京明天天气怎么样啊");
// 是否开启字幕功能(返回相应文本的时间戳)，默认不开启，需要注意并非所有发音人都支持该参数。
synthesizer.addCustomedParam("enable_subtitle", false);
//此方法将以上参数设置序列化为JSON格式发送给服务端，并等待服务端确认。
long start = System.currentTimeMillis();
synthesizer.start();
logger.info("tts start latency " + (System.currentTimeMillis() - start) + " ms");
SpeechSynthesizerDemo.startTime = System.currentTimeMillis();
//等待语音合成结束
synthesizer.waitForComplete();
logger.info("tts stop latency " + (System.currentTimeMillis() - start) + " ms");
} catch (Exception e) {
e.printStackTrace();
} fifinally {
//关闭连接
if (null != synthesizer) {
synthesizer.close();
}
}
}
public void shutdown() {
client.shutdown();
}
public static void main(String[] args) throws Exception {
String appKey = "";
String id = "";
String secret = "";
String url = ""; //默认值：wss://nls-gateway.cn-shanghai.aliyuncs.com/ws/v1
if (args.length == 3) {
appKey = args[0];
id = args[1];
secret = args[2];
} else if (args.length == 4) {
appKey = args[0];
id = args[1];
secret = args[2];
url = args[3];
} else {
System.err.println("run error, need params(url is optional): " + "<app-key> <AccessKeyId> <AccessKeySecret>
[url]");
System.exit(-1);
}
SpeechSynthesizerDemo demo = new SpeechSynthesizerDemo(appKey, id, secret, url);
demo.process();
demo.shutdown();
}
}
