Step By Step
1.获取您的真实AK信息
2.开通智能语音交互服务
3.创建智能语音交互项目
关于创建项目介绍可参考之前的博客:一句话识别
4,添加依赖
<dependency>
<groupId>com.aliyun</groupId>
<artifactId>aliyun-java-sdk-core</artifactId>
<version>4.5.13</version>
</dependency>
<dependency>
<groupId>com.alibaba.nls</groupId>
<artifactId>nls-sdk-tts</artifactId>
<version>2.2.1</version>
</dependency>
5.Code Sample
package com.alibaba.nls.client;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
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:
* 长文本语音合成API调用(setLongText)。
* 流式合成TTS。
* 首包延迟计算。
*
* 说明:该示例和nls-example-tts下的SpeechSynthesizerLongTextDemo不完全相同,长文本语音合成是单独的产品功能,是将一长串文本直接发送给服务端去合成,
* 而SpeechSynthesizerLongTextDemo演示的是将一长串文本在调用方处切割然后分段调用语音合成接口。
*/
public class SpeechLongSynthesizerDemo {
private static final Logger logger = LoggerFactory.getLogger(SpeechLongSynthesizerDemo.class);
private static long startTime;
private String appKey;
NlsClient client;
public SpeechLongSynthesizerDemo(String appKey, String token, String url) {
this.appKey = appKey;
//创建NlsClient实例应用全局创建一个即可。生命周期可和整个应用保持一致,默认服务地址为阿里云线上服务地址。
if(url.isEmpty()) {
client = new NlsClient(token);
} else {
client = new NlsClient(url, token);
}
}
private static SpeechSynthesizerListener getSynthesizerListener() {
SpeechSynthesizerListener listener = null;
try {
listener = new SpeechSynthesizerListener() {
File f=new File("ttsForLongText.wav");
FileOutputStream fout = new FileOutputStream(f);
private boolean firstRecvBinary = true;
//语音合成结束
@Override
public void onComplete(SpeechSynthesizerResponse response) {
// 调用onComplete时,表示所有TTS数据已经接收完成,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 file :"+f.getAbsolutePath());
}
//语音合成的语音二进制数据
@Override
public void onMessage(ByteBuffer message) {
try {
if(firstRecvBinary) {
// 此处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)。
firstRecvBinary = false;
long now = System.currentTimeMillis();
logger.info("tts first latency : " + (now - SpeechLongSynthesizerDemo.startTime) + " ms");
}
byte[] bytesArray = new byte[message.remaining()];
message.get(bytesArray, 0, bytesArray.length);
//System.out.println("write array:" + 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,需要提供此task_id以便排查。
System.out.println(
"task_id: " + response.getTaskId() +
//状态码
", status: " + response.getStatus() +
//错误信息
", status_text: " + response.getStatusText());
}
};
} catch (Exception e) {
e.printStackTrace();
}
return listener;
}
public void process(String text) {
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。注意Java SDK不支持调用超高清场景对应的发音人(例如"zhiqi"),如需调用请使用restfulAPI方式。
synthesizer.setVoice("siyue");
//语调,范围是-500~500,可选,默认是0。
synthesizer.setPitchRate(0);
//语速,范围是-500~500,默认是0。
synthesizer.setSpeechRate(0);
//设置用于语音合成的文本
// 此处调用的是setLongText接口(原语音合成接口是setText)。
synthesizer.setLongText(text);
//此方法将以上参数设置序列化为JSON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");
SpeechLongSynthesizerDemo.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();
} finally {
//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 token = "";
// url取默认值
String url = "";
if (args.length == 2) {
appKey = args[0];
token = args[1];
} else if (args.length == 3) {
appKey = args[0];
token = args[1];
url = args[2];
} else {
System.err.println("run error, need params(url is optional): " + "<app-key> <token> [url]");
System.exit(-1);
}
String ttsTextLong = "您的长文本";
SpeechLongSynthesizerDemo demo = new SpeechLongSynthesizerDemo(appKey, token, url);
demo.process(ttsTextLong);
demo.shutdown();
}
}