# SoftBank Robotics documentation What's new in NAOqi 2.8?

# Say Hello World (DEPRECATED)

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The aim of this example is to demonstrate how to use the specialized proxy to ALTextToSpeech. This example will make NAO say “Hello World”.

The complete example is available here `sayhelloworld.zip`

## Source file:

`sayhelloworld.cpp`

    /**
     * Copyright (c) 2011 Aldebaran Robotics. All Rights Reserved
     * \file sayhelloworld.cpp
     * \brief Make NAO say a short phrase.
     *
     * A simple example showing how to make NAO say a short phrase using the
     * specialized proxy ALTextToSpeechProxy.
     */

    #include <iostream>
    #include <alerror/alerror.h>
    #include <alproxies/altexttospeechproxy.h>

    int main(int argc, char* argv[])
    {
      if(argc != 2)
      {
        std::cerr << "Wrong number of arguments!" << std::endl;
        std::cerr << "Usage: say NAO_IP" << std::endl;
        exit(2);
      }

      /** The desired phrase to be said. */
      const std::string phraseToSay = "Hello world";
      try
      {
        /** Create an ALTextToSpeechProxy so that we can call the say method
        * Arguments for the constructor are:
        *  - IP of the robot
        *  - port on which NAOqi is listening. Default is 9559
        */
        AL::ALTextToSpeechProxy tts(argv[1], 9559);

        /** Call the say method */
        tts.say(phraseToSay);
      }
      catch (const AL::ALError& e)
      {
        std::cerr << "Caught exception: " << e.what() << std::endl;
        exit(1);
      }
      exit(0);
    }

## CMakeLists.txt:

The corresponding CMakeLists.txt file is the following:

`CMakeLists.txt`

    ##
    # Copyright (c) 2011 Aldebaran Robotics. All Rights Reserved.

    cmake_minimum_required(VERSION 2.6.4 FATAL_ERROR)
    # Give a name to the project.
    project(sayhelloworld)
    # This include enable you to use qibuild framework
    find_package(qibuild)

    # Create an executable named sayhelloworld,
    # with the source file : sayhelloworld.cpp
    qi_create_bin(sayhelloworld sayhelloworld.cpp)

    # Tell CMake that sayhelloworld depends on ALCOMMON and ALPROXIES
    # This will set the libraries to link sayhelloworld with,
    # the include paths, and so on
    qi_use_lib(sayhelloworld ALCOMMON ALPROXIES)

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