CLOVA Voice TTS (Premium)

変換対象のテキストと音色、スピード、感情などをパラメータで渡されて音声を合成する CLOVA Voice APIのユースケースを説明します。

Java

Javaベースの CLOVA Voice APIのサンプルコードは次の通りです。

import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.Date;

public class APIExamTTS {

    public static void main(String[] args) {
        String clientId = "YOUR_CLIENT_ID";//アプリケーションクライアント ID値";
        String clientSecret = "YOUR_CLIENT_SECRET";//アプリケーションクライアントのシークレット値";
        try {
            String text = URLEncoder.encode("こんにちは。", "UTF-8"); // 13文字
            String apiURL = "https://naveropenapi.apigw.ntruss.com/tts-premium/v1/tts";
            URL url = new URL(apiURL);
            HttpURLConnection con = (HttpURLConnection)url.openConnection();
            con.setRequestMethod("POST");
            con.setRequestProperty("X-NCP-APIGW-API-KEY-ID", clientId);
            con.setRequestProperty("X-NCP-APIGW-API-KEY", clientSecret);
            // post request
            String postParams = "speaker=nara&volume=0&speed=0&pitch=0&format=mp3&text=" + text;
            con.setDoOutput(true);
            DataOutputStream wr = new DataOutputStream(con.getOutputStream());
            wr.writeBytes(postParams);
            wr.flush();
            wr.close();
            int responseCode = con.getResponseCode();
            BufferedReader br;
            if(responseCode==200) { // 正常な呼び出し
                InputStream is = con.getInputStream();
                int read = 0;
                byte[] bytes = new byte[1024];
                // ランダムな名前で mp3ファイルを作成
                String tempname = Long.valueOf(new Date().getTime()).toString();
                File f = new File(tempname + ".mp3");
                f.createNewFile();
                OutputStream outputStream = new FileOutputStream(f);
                while ((read =is.read(bytes)) != -1) {
                    outputStream.write(bytes, 0, read);
                }
                is.close();
            } else {  // エラー発生
                br = new BufferedReader(new InputStreamReader(con.getErrorStream()));
                String inputLine;
                StringBuffer response = new StringBuffer();
                while ((inputLine = br.readLine()) != null) {
                    response.append(inputLine);
                }
                br.close();
                System.out.println(response.toString());
            }
        } catch (Exception e) {
            System.out.println(e);
        }
    }
}

Python

Pythonベースの CLOVA Voice APIのサンプルコードは次の通りです。

import os
import sys
import urllib.request
client_id = "YOUR_CLIENT_ID"
client_secret = "YOUR_CLIENT_SECRET"
encText = urllib.parse.quote("こんにちは、NAVER")
data = "speaker=nara&volume=0&speed=0&pitch=0&format=mp3&text=" + encText;
url = "https://naveropenapi.apigw.ntruss.com/tts-premium/v1/tts"
request = urllib.request.Request(url)
request.add_header("X-NCP-APIGW-API-KEY-ID",client_id)
request.add_header("X-NCP-APIGW-API-KEY",client_secret)
response = urllib.request.urlopen(request, data=data.encode('utf-8'))
rescode = response.getcode()
if(rescode==200):
    print("TTS mp3を保存")
    response_body = response.read()
    with open('1111.mp3', 'wb') as f:
        f.write(response_body)
else:
    print("Error Code:" + rescode)

import os
import sys
import urllib
import urllib2
reload(sys)
sys.setdefaultencoding('utf-8')
client_id = "YOUR_CLIENT_ID"
client_secret = "YOUR_CLIENT_SECRET"
text = unicode("こんにちは、NAVER")
speaker = "nara"
speed = "0"
volume = "0"
pitch = "0"
fmt = "mp3"
val = {
    "speaker": speaker,
    "volume": volume,
    "speed":speed,
    "pitch": pitch,
    "text":text,
    "format": fmt
}
data = urllib.urlencode(val)
url = "https://naveropenapi.apigw.ntruss.com/tts-premium/v1/tts"
headers = {
    "X-NCP-APIGW-API-KEY-ID" : client_id,
    "X-NCP-APIGW-API-KEY" : client_secret
}
request = urllib2.Request(url, data, headers)
response = urllib2.urlopen(request)
rescode = response.getcode()
if(rescode==200):
    print("TTS mp3 save")
    response_body = response.read()
    with open('1111.mp3', 'wb') as f:
        f.write(response_body)
else:
    print("Error Code:" + rescode)

PHP

PHPベースの CLOVA Voice APIのサンプルコードは次の通りです。

<?php
  $client_id = "YOUR_CLIENT_ID";
  $client_secret = "YOUR_CLIENT_SECRET";
  $encText = urlencode("こんにちは。");
  $postvars = "speaker=nara&volume=0&speed=0&pitch=0&format=mp3&text=".$encText;
  $url = "https://naveropenapi.apigw.ntruss.com/tts-premium/v1/tts";
  $is_post = true;
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_POST, $is_post);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch,CURLOPT_POSTFIELDS, $postvars);
  $headers = array();
  $headers[] = "X-NCP-APIGW-API-KEY-ID: ".$client_id;
  $headers[] = "X-NCP-APIGW-API-KEY: ".$client_secret;
  curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
  $response = curl_exec ($ch);
  $status_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
  echo "status_code:".$status_code."<br />";
  curl_close ($ch);
  if($status_code == 200) {
    //echo $response;
    $fp = fopen("tts.mp3", "w+");
    fwrite($fp, $response);
    fclose($fp);
    echo "<a href='tts.mp3'>TTS再生</a>";
  } else {
    echo "エラー内容: ".$response;
  }
?>

JavaScript

JavaScriptベースの CLOVA Voice APIのサンプルコードは次の通りです。

var express = require('express');
var app = express();
var client_id = 'YOUR_CLIENT_ID';
var client_secret = 'YOUR_CLIENT_SECRET';
var fs = require('fs');
app.get('/tts', function(req, res) {
  var api_url = 'https://naveropenapi.apigw.ntruss.com/tts-premium/v1/tts';
  var request = require('request');
  var options = {
    url: api_url,
    form: { speaker: 'nara', volume: '0', speed: '0', pitch: '0', text: '良い一日を', format: 'mp3' },
    headers: { 'X-NCP-APIGW-API-KEY-ID': client_id, 'X-NCP-APIGW-API-KEY': client_secret },
  };
  var writeStream = fs.createWriteStream('./tts1.mp3');
  var _req = request.post(options).on('response', function(response) {
    console.log(response.statusCode); // 200
    console.log(response.headers['content-type']);
  });
  _req.pipe(writeStream); // fileで出力
  _req.pipe(res); // ブラウザで出力
});
app.listen(3000, function() {
  console.log('http://127.0.0.1:3000/tts app listening on port 3000!');
});

C#

C# ベースの CLOVA Voice APIのサンプルコードは次の通りです。

using System;
using System.Net;
using System.Text;
using System.IO;

namespace NaverAPI_Guide
{
    public class APIExamTTS
    {
        static void Main(string[] args)
        {
            string text = "良い一日を。"; // 音声合成対象の文字列
            string url = "https://naveropenapi.apigw.ntruss.com/tts-premium/v1/tts";
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Headers.Add("X-NCP-APIGW-API-KEY-ID", "YOUR-CLIENT-ID");
            request.Headers.Add("X-NCP-APIGW-API-KEY", "YOUR-CLIENT-SECRET");
            request.Method = "POST";
            byte[] byteDataParams = Encoding.UTF8.GetBytes("speaker=nara&volume=0&speed=0&pitch=0&format=mp3&text=" + text);
            request.ContentType = "application/x-www-form-urlencoded";
            request.ContentLength = byteDataParams.Length;
            Stream st = request.GetRequestStream();
            st.Write(byteDataParams, 0, byteDataParams.Length);
            st.Close();
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            string status = response.StatusCode.ToString();
            Console.WriteLine("status="+ status);
            using (Stream output = File.OpenWrite("c:/tts.mp3"))
            using (Stream input = response.GetResponseStream())
            {
                input.CopyTo(output);
            }
            Console.WriteLine("c:/tts.mp3 was created");
        }
    }
}

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CLOVA Voice TTS (Premium)